The identification of facial expressions is critical for social interaction. The ability to recognize facial emotional expressions declines with age. These age effects have been associated with differential age-related looking patterns. The present research project set out to systematically test the role of specific facial areas for emotion recognition across the adult lifespan. Study 1 investigated the impact of displaying only separate facial areas versus the full face on emotion recognition in 62 younger and 65 middle-aged (...) adults. Study 2 examined if wearing face masks differentially compromises younger versus middle-aged to older adults’ ability to identify different emotional expressions. Results of Study 1 suggested no general decrease in emotion recognition across the lifespan; instead, age-related performance seems to depend on the specific emotion and presented face area. Similarly, Study 2 observed only deficits in the identification of angry, fearful, and neutral expressions in older adults, but no age-related differences with regards to happy, sad, and disgusted expressions. Overall, face masks reduced participants’ emotion recognition; however, there were no differential age effects. Results are discussed in light of current models of age-related changes in emotion recognition. (shrink)

Micro-expressions, as fleeting facial expressions, are very important for judging people’s true emotions, thus can provide an essential behavioral clue for lie and dangerous demeanor detection. From embodied accounts of cognition, we derived a novel hypothesis that facial feedback from upper and lower facial regions has differential effects on micro-expression recognition. This hypothesis was tested and supported across three studies. Specifically, the results of Study 1 showed that people became better judges of intense micro-expressions with a duration (...) of 450 ms when the facial feedback from upper face was enhanced via a restricting gel. Additional results of Study 2 showed that the recognition accuracy of subtle micro-expressions was significantly impaired under all duration conditions (50 ms, 150 ms, 333 ms, and 450 ms) when facial feedback from lower face was enhanced. In addition, the results of Study 3 also revealed that blocking the facial feedback of lower face, significantly boosted the recognition accuracy of subtle and intense micro-expressions under all duration conditions (150 ms and 450 ms). Together, these results highlight the role of facial feedback in judging the subtle movements of micro-expressions. (shrink)

So far, little is known about the neurocognitive mechanisms associated with emotion effects on prospective memory (PM) performance. Thus, this study aimed at disentangling possible mechanisms for the effects of emotional valence of PM cues on the distinct phases composing PM by investigating event-related potentials (ERPs). Participants were engaged in an ongoing N-back task while being required to perform a PM task. The emotional valence of both the ongoing pictures and the PM cues was manipulated (pleasant, neutral, unpleasant). (...) ERPs were recorded during the PM phases, such as encoding, maintenance, and retrieval of the intention. A recognition task including PM cues and ongoing stimuli was also performed at the end of the sessions. ERP results suggest that emotional PM cues not only trigger an automatic, bottom-up, capture of attention, but also boost a greater allocation of top-down processes. These processes seem to be recruited to hold attention towards the emotional stimuli and to retrieve the intention from memory, likely because of the motivational significance of the emotional stimuli. Moreover, pleasant PM cues seemed to modulate especially the prospective component, as revealed by changes in the amplitude of the ERP correlates of strategic monitoring as a function of the relevance of the valence for the PM task. Unpleasant pictures seemed to modulate especially the retrospective component, as revealed by the largest old/new effect being elicited by unpleasant PM pictures in the recognition task. (shrink)

The mere exposure effect is the increase in positive affect that results from the repeated exposure to previously novel stimuli. We sought to determine if judgments other than affective preference could reliably produce a mere exposure effect for two-dimensional random shapes. In two experiments, we found that brighter and darker judgments did not differentiate target from distracter shapes, liking judgments led to target selection greater than chance, and disliking judgments led to distracter selection greater than chance. These results for brighter, (...) darker, and liking judgments were obtained regardless of whether shape recognition was greater (Experiment 1) or not greater (Experiment 2) than chance. Effects of prior exposure to novel shapes were reliably observed only for affective judgment tasks. These results are inconsistent with general predictions made by the nonspecific activation hypothesis, but not the affective primacy or perceptual fluency hypotheses which were discussed in terms of cognitive neuroscience research. (shrink)

Previous work has shown that children with dyslexia are impaired in speech recognition in adverse listening conditions. Our study further examined how semantic context and fundamental frequency contours contribute to word recognition against interfering speech in dyslexic and non-dyslexic children. Thirty-two children with dyslexia and 35 chronological-age-matched control children were tested on the recognition of words in normal sentences versus wordlist sentences with natural versus flat F0 contours against single-talker interference. The dyslexic children had overall poorer (...) class='Hi'>recognition performance than non-dyslexic children. Furthermore, semantic context differentially modulated the effect of F0 contours on the recognition performances of the two groups. Specifically, compared with flat F0 contours, natural F0 contours increased the recognition accuracy of dyslexic children less than non-dyslexic children in the wordlist condition. By contrast, natural F0 contours increased the recognition accuracy of both groups to a similar extent in the sentence condition. These results indicate that access to semantic context improves the effect of natural F0 contours on word recognition in adverse listening conditions by dyslexic children who are more impaired in the use of natural F0 contours during isolated and unrelated word recognition. Our findings have practical implications for communication with dyslexic children when listening conditions are unfavorable. (shrink)

Difficulties understanding speech form one of the most prevalent complaints among older adults. Successful speech perception depends on top-down linguistic and cognitive processes that interact with the bottom-up sensory processing of the incoming acoustic information. The relative roles of these processes in age-related difficulties in speech perception, especially when listening conditions are not ideal, are still unclear. In the current study, we asked whether older adults with a larger working memory capacity process speech more efficiently than peers with lower capacity (...) when speech is presented in noise, with another task performed in tandem. Using the Eye-tracking of Word Identification in Noise Under Memory Increased Load an adapted version of the “visual world” paradigm, 36 older listeners were asked to follow spoken instructions presented in background noise, while retaining digits for later recall under low or high memory load. In critical trials, instructions directed listeners’ gaze to pictures of objects whose names shared onset or offset sounds with the name of a competitor that was displayed on the screen at the same time. We compared listeners with different memory capacities on the time course for spoken word recognition under the two memory loads by testing eye-fixations on a named object, relative to fixations on an object whose name shared phonology with the named object. Results indicated two trends. For older adults with lower working memory capacity, increased memory load did not affect online speech processing, however, it impaired offline word recognition accuracy. The reverse pattern was observed for older adults with higher working memory capacity: increased task difficulty significantly decreases online speech processing efficiency but had no effect on offline word recognition accuracy. Results suggest that in older adults, adaptation to adverse listening conditions is at least partially supported by cognitive reserve. Therefore, additional cognitive capacity may lead to greater resilience of older listeners to adverse listening conditions. The differential effects documented by eye movements and accuracy highlight the importance of using both online and offline measures of speech processing to explore age-related changes in speech perception. (shrink)

In this paper, I argue that a serious philosophical investigation of the domain of the perlocutionary is both possible and desirable, and I show that it possesses a distinctively moral dimension that has so far been overlooked. I start, in Section II, by offering an original characterisation of the distinction between the illocutionary and the perlocutionary derived from the degree of predictability and stability that differentiates their respective effects. In Section III, I argue that, in order to grasp the (...) specificity of the perlocutionary, we must focus on the total speech situation, which I define as conversation. Then, in Section IV, I show that an investigation of the domain of the perlocutionary requires us to draw a conceptual distinction between recognition and acknowledgment. This distinction proves to be crucial, because the success of perlocutions normally depends on something more than what Austin calls the ‘securing of uptake’: the reciprocity condition for illocutions needs to be supplemented, in the case of perlocutions, with an analysis of what I call the ‘grammar of acknowledgment.’ Lastly, in Section V, I elaborate the notion of ‘perlocutionary responsibility,’ a specific form of moral responsibility for the consequences of utterances that are not (entirely) predictable. (shrink)

It is well known that the unpredictable speech production brought on by stress from the task at hand has a significant negative impact on the performance of speech processing algorithms. Speech therapy benefits from being able to detect stress in speech. Speech processing performance suffers noticeably when perceptually produced stress causes variations in speech production. Using the acoustic speech signal to objectively characterize speaker stress is one method for assessing production variances brought on by stress. Real-world complexity and ambiguity make (...) it difficult for decision-makers to express their conclusions with clarity in their speech. In particular, the Neutrosophic speech algorithm is used to encode the language variables because they cannot be computed directly. Neutrosophic sets are used to manage indeterminacy in a practical situation. Existing algorithms are used except for stress on Neutrosophic speech recognition. The creation of algorithms that calculate, categorize, or differentiate between different stress circumstances. Understanding stress and developing strategies to combat its effects on speech recognition and human-computer interaction system are the goals of this recognition. (shrink)

Climate justice activists envision a “postcarbon” future that not only transforms energy infrastructures but also redresses the fossil fuel economy’s long-standing racial inequalities. Yet this anti-racist rebranding of the “zero emissions” telos does not tend to the racial grief that’s foundational to white supremacy. Accordingly, I ask: can we address racial oppression through a “just transition” to a “postcarbon” moment? In response, I connect today’s postcarbon imaginary with yesterday’s postcolonial imaginary. Drawing from research on US-based climate activism, I explore how (...) the utopic rhetoric of a “just transition” is instantiated in practice. I argue that the racialized absences constitutive of what scholars call “postcolonial amnesia” are operative in the anti-racist move to a postcarbon moment. This postcarbon imaginary formulates the vulnerability of people of color to biophysical disasters as the raison d’être for infrastructural transformation. This, I argue, has the effect of overlooking the ways in which racial grief inheres in such vulnerability and the capacity of energy infrastructures to uphold racist hierarchies. I situate this “postcarbon amnesia” in Anne Cheng’s framework for differentiating “grief” from “grievance,” calling for renewable energy transitions that move away from enumerative grievances and toward a sobering recognition of racial grief. (shrink)

Recognition memory performance reflects two distinct memory processes: a conscious process of recollection, which allows remembering specific details of a previous event, and familiarity, which emerges in the absence of any conscious information about the context in which the event occurred. Slow wave sleep and rapid eye movement sleep are differentially involved in the consolidation of different types of memory. The study assessed the effects of SWS and REM sleep on recollection, by means of the “remember”/”know” paradigm. Subjects (...) studied three blocks of 12 words before a 3-h retention interval filled with SWS, REM sleep or wakefulness, placed between 3 a.m. and 6 a.m. Afterwards, recognition and recollection were tested. Recollection was higher after a retention interval rich in SWS than after a retention interval rich in REM sleep or filled with wakefulness. The results suggest that SWS facilitates the process of recollection in recognition memory. (shrink)

The evolution of reciprocal altruism probably involved the evolution of mechanisms to detect cheating and remember cheaters. In a well-known study, Mealey, Daood, and Krage (1996) observed that participants had enhanced memory for faces that had previously been associated with descriptions of acts of cheating. There were, however, problems with the descriptions that were used in that study. We sought to replicate and extend the findings of Mealey and colleagues by using more controlled descriptions and by examining the possibility of (...) enhanced altruist recognition. We also examined whether individual differences in cheating tendencies were related to cheater and altruist recognition. In the first experiment, 164 undergraduates saw 40 faces that were paired with character descriptions representing the categories of cheater, trustworthy, altruist, or neutral, for individuals who had either low or high social status. One week later participants reported which faces they recognized from the previous week (among 80 faces). Overall, the results failed to replicate the findings of Mealey and her colleagues, as there was no enhanced memory for cheaters. In addition, there was no enhanced memory for altruists, and no effect of participants’ cheating tendencies. A second experiment using a slightly different methodology produced similar results, with some evidence for enhanced memory for altruists. (shrink)

In a study concerning visual body part recognition, a “self-advantage” effect, whereby self-related body stimuli are processed faster and more accurately than other-related body stimuli, was revealed, and the emergence of this effect is assumed to be tightly linked to implicit motor simulation, which is activated when performing a hand laterality judgment task in which hand ownership is not explicitly required. Here, we ran two visual hand recognition tasks, namely, a hand laterality judgment task and a self-other discrimination (...) task, to investigate whether the self-advantage emerged even if implicit motor imagery was assumed to be working less efficiently and how individual traits [such as autistic traits and the extent of positive self-body image, as assessed via the Autism Spectrum Quotient and the Body Appreciation Scale-2, respectively] modulate performance in these hand recognition tasks. Participants were presented with hand images in two orientations [i.e., upright and upside-down ] and asked to judge whether it was a left or right hand. They were also asked to determine whether it was their own, or another person’s hand. Data collected from men and women were analyzed separately. The self-advantage effect in the hand laterality judgment task was not revealed, suggesting that only two orientation conditions are not enough to trigger this motor simulation. Furthermore, the men’s group showed a significant positive correlation between AQ scores and reaction times in the laterality judgment task, while the women’s group showed a significant negative correlation between AQ scores and differences in RTs and a significant positive correlation between BAS-2 scores and dprime in the self-other discrimination task. These results suggest that men and women differentially adopt specific strategies and/or execution processes for implicit and explicit hand recognition tasks. (shrink)

Language is central to the interactional nature of the social life within which it is situated. To react or respond in a particular situation, we must be able to recognize the social situation. Growing evidence has demonstrated the negative impact of perceived loneliness on late-life executive functions. Yet little is known about how social factors impact language processing for older people. The current study aims to fill this gap, first by assessing age-related changes in lexical processing during Chinese word reading, (...) second, by examining whether older adults’ individual differences, such as processing speed and verbal abilities, modulate meaning retrieval and, third, by investigating whether perceived loneliness can hinder word reading. The use of compound words in Chinese enables significant sublexical ambiguity, requiring varying executive load during word recognition: when a word’s constituent characters carry multiple meanings, readers must consider the meaning contributions of both constituent characters and use top-down word information to determine the most accurate meaning of the ambiguous character, a process termed “sublexical ambiguity resolution.” In this study, adults read real Chinese words and pseudowords, and they were asked to make lexical decisions. Older adults exhibited greater lexicality effects and similar sublexical ambiguity effects compared with young adults. Among older participants, processing speed could account for their ability to differentiate between words and pseudowords. In contrast, the level of perceived loneliness modulated the efficacy of sublexical ambiguity resolution: the participants with higher perceived loneliness displayed a greater sublexical ambiguity disadvantage effect. These results indicate that perceived loneliness may affect the use of contextual information in meaning retrieval during reading. The findings provide an important link between social connections and language processing. (shrink)

Purpose Health misinformation poses severe risks to people’s health decisions and outcomes. A great deal of research in this area has focused on debunking misinformation and found limited effects of correctives after misinformation exposure. The research on prebunking strategies has been inadequate. Most has focused on forewarning and enhancing literacy skills and knowledge to recognize misinformation. Part of the reason for the inadequacy could be due to the challenges in conceptualizing and measuring knowledge. This study intends to fill this (...) gap and examines various types of knowledge, including subjective knowledge, cancer literacy, persuasion knowledge and media literacy. This study aims to understand how knowledge may moderate the effect of misinformation exposure on misbeliefs. Design/methodology/approach An online experiment with a basic experimental design (misinformation exposure: health misinformation vs factual health message) was conducted. The authors measured and tested the moderating role of different types of knowledge (subjective knowledge, cancer literacy, persuasion knowledge and media literacy) separately to improve the understanding of their role in combatting online health misinformation. Findings This study found that a higher level of cancer literacy and persuasion knowledge helped people identify misinformation and prevented them from being persuaded by it. A higher level of subjective knowledge, however, reduced the recognition of misinformation, thereby increasing the likelihood of being persuaded by it. Media literacy did not moderate the mediation path. Originality/value This study differentiates the role different types of knowledge may have played in moderating the influence of health misinformation. It contributes to a strategic development of interventions that better prepare people against the influence of health misinformation. (shrink)

The use of the category of race in science remains controversial. During the last few years there has been a lively debate on this topic in the field of a relatively young neuroscience discipline called cultural neuroscience. The main focus of cultural neuroscience is on biocultural conditions of the development of different dimensions of human perceptive activity, both cognitive or emotional. These dimensions are analysed through the comparison of representatives of different social and ethnic groups. In my article, I present (...) arguments supporting these two hypotheses: the other-race effect understood as an individual, distinct effect does not exist. It is rather an exemplification of a much broader phenomenon which I call theunfamiliarity homogeneity effect. It includes not only problems with differentiation and recognition of faces of representatives of other ethnic groups, but also covers similar recognitional difficulties ; The race-based terminology and categories are used in cultural neuroscience research in a vague and inconsistent manner. Such an approach distorts the science both in empirically and conceptually significant respects. The unfamiliarity homogeneity effect is an example of such a situation: narrowing it to the other-race effect makes it difficult to analyse in a wider context crucial for its understanding. (shrink)

The aim of this research was to establish linear relations (association and prediction) and inferential relations between three constructs at different levels of psychological research –executive dysfunction(microanalysis),self-regulation(molecular level), andself-vs.external regulation(molar level), in the prediction of emotion regulation difficulties. We hypothesized that personal and contextual regulatory factors would be negatively related to levels of executive dysfunction and emotion regulation difficulties; by way of complement, non-regulatory and dysregulatory personal, and contextual factors would be positively related to these same difficulties. To establish relationships, (...) we used a retrospective,ex postfacto design, where 298 university students voluntarily participated by completing standardized self-reports. Linear and structural correlational, predictive analyses were performed, as well as inferential analyses. Results were consistent and validated the proposed hypotheses, for both association and prediction. The most important result refers to the discriminant value of the five-level combination heuristic for predicting Executive Function and External (contextual) Dys-Regulation. In conclusion: (1) both personal and contextual regulation factors must be analyzed in order to better understand the variation in executive functions and emotion regulation difficulties; (2) it is important to continue connecting the different levels of the constructs referring to self-regulation, given their complementary role in the behavioral analysis of regulation difficulties. (shrink)

This study investigated grammatical gender processing in school-age Spanish-English bilingual children using a visual world paradigm with a 4-picture display where the target noun was heard with a gendered article that was either in a context where all distractor images were the same gender as the target noun or in a context where all distractor images were the opposite gender than the target noun. We investigated 32 bilingual children who were exposed to Spanish since infancy and began learning English by (...) school entry. Along with the eye-tracking experiment, all children participated in a standardized language assessment and told narratives in English and Spanish, and parents reported on their child's current Spanish language use. The differential proportion fixations to target were analyzed in two time regions with linear mixed-effects models. Results show that prior to the target word being spoken, these bilingual children did not use the gendered articles to actively anticipate upcoming nouns. In the subsequent time region, it was shown that there are differences in the way they use feminine and masculine articles, with a lack of use of the masculine article and a potential facilitatory use of the feminine article for children who currently use more Spanish than English. This asymmetry in the use of gendered articles in processing is modulated by current Spanish language use and trends with results found for bilingual and second-language learning adults. (shrink)

Some have argued that advances in the science of human decision-making, particularly research on automaticity and unconscious priming, would ultimately thwart our commonsense understanding of free will and moral responsibility. Do people interpret this research as a threat to their self-understanding as free and responsible agents? We approached this question by seeing how feelings of surprise mediate the relationship between personal sense of control and third-personal attributions of free will and responsibility. Across three studies (N = 1,516) we found that (...) people with a greater sense of personal control were more surprised at the results of experiments showing effects of unconscious priming on moral behavior. Surprise differentially mediated the relationship between personal control and attributions of free will and responsibility: people attributed less free will and more responsibility as they were more surprised. This suggests that people exhibit defensive thinking with respect to responsibility, but not free will. (shrink)

Previous research has shown that as the level of background noise increases, auditory word recognition performance drops off more rapidly for bilinguals than monolinguals. This disproportionate bilingual deficit has often been attributed to a presumed increase in cross-language activation in noise, although no studies have specifically tested for such an increase. We propose two distinct mechanisms by which background noise could cause an increase in cross-language activation: a phonetically based account and an executive function-based account. We explore the evidence (...) for the phonetically based account by comparing cognate facilitation effects for three groups of native English listeners learners of Spanish, and heritage Spanish speakers) and four noise conditions during an auditory lexical decision task in English. By examining word recognition in the dominant language, the role of language control mechanisms is minimized, and by examining three different types of competing noise, the role of energetic vs. informational masking can be assessed. Contrary to predictions, we find no evidence that background noise modulates cross-language activation; cognate facilitation is constant across the four noise conditions. Instead, several indices of word recognition performance are found to correlate with aspects of linguistic experience: The magnitude of the cognate facilitation effect is correlated with heritage listeners’ self-ratings of Spanish proficiency; Overall noise deficits are marginally larger for heritage listeners with lower English vocabulary scores; Heritage listeners’ Spanish self-ratings predict their magnitude of informational masking; For all bilinguals, the degree of masking incurred in both English and Spanish two-talker babble is correlated with self-reported daily exposure to Spanish; and The degree of masking incurred by Spanish babble is correlated with Spanish vocabulary knowledge. The results enrich our understanding of auditory word recognition in heritage speakers in particular and provide evidence that informational masking is most subject to modulation due to variation in linguistic experience. It remains to be seen whether cross-language activation is modulated by noise when the target language is the less dominant one. (shrink)

Based on the self-verification theory, this research proposed a multi-level model for exploring whether, how, and when differentiated leadership had curvilinear effects on relationship conflict within a team and further on team members’ counterproductive work behaviors toward individuals (CWBI). Drawing on a sample of 297 team members nested in 78 teams, we found that differentiated empowering leadership had no direct curvilinear effects on relationship conflict. However, the results showed that the team competence variance could moderate the curvilinear relationship (...) between differentiated empowering leadership and relationship conflict. Specifically, only in teams with high competence variance among members, differentiated empowering leadership had a U-shaped effect on relationship conflict. Moreover, differentiated empowering leadership interacted with team competence variance had a downstream effect on team members’ CWBI through relationship conflict. We ended up by discussing the theoretical and practical implications of these findings. (shrink)

This article describes research on the associations between self-concept structure and sense of personal identity. Particular emphasis was given to the feature of self-concept differentiation. Notably, it was examined whether the effects of SCD on such aspects of self-experience as sense of having inner contents, sense of uniqueness, sense of one’s own boundaries, sense of coherence, sense of continuity in time, and sense of self-worth depend on individuals’ epistemic motivation, and more specifically their joint need for cognition, reflection, and (...) integrative self-knowledge scores. Cluster analysis revealed three distinct profiles of epistemic motivation: disengaged, engaged and struggling, and engaged and integrating group. Subsequent analysis showed, first, that the three groups differed in SCD and sense of identity, with the epistemically disengaged group having the highest levels of SCD, and the epistemically engaged and integrating group having consistently the strongest sense of identity. Second, and more importantly, it showed that SCD was negatively related to overall sense of identity, and, in particular, senses of having inner contents, coherence and continuity in time, but only among individuals in the epistemically engaged and struggling group. (shrink)

With regard to facial emotion recognition, previous studies found that specific facial regions were attended more in order to identify certain emotions. We investigated whether a preferential search for emotion-specific diagnostic regions could contribute toward the accurate recognition of facial emotions. Twenty-three neurotypical adults performed an emotion recognition task using six basic emotions: anger, disgust, fear, happiness, sadness, and surprise. The participants’ exploration patterns for the faces were measured using the Moving Window Technique (MWT). This technique presented (...) a small window on a blurred face, and the participants explored the face stimuli through a mouse-controlled window in order to recognize the emotions on the face. Our results revealed that when the participants explored the diagnostic regions for each emotion more frequently, the correct recognition of the emotions occurred at a faster rate. To the best of our knowledge, this current study is the first to present evidence that an exploration of emotion-specific diagnostic regions can predict the reaction time of accurate emotion recognition among neurotypical adults. Such findings can be further applied in the evaluation and/or training (regarding emotion recognition functions) of both typically and atypically developing children with emotion recognition difficulties. (shrink)

Research in neurocriminology has explored the link between neural functions and structures and the psychopathic disposition. This online experiment aimed to assess the effect of communicating the neuroscience of psychopathy on the degree to which lay people exhibited attitudes characteristic of psychopathy in particular in terms of moral behaviour. If psychopathy is blamed on the brain, people may feel less morally responsible for their own psychopathic tendencies. In the study, participants read false feedback about their own psychopathic traits supposedly inferred (...) from their Facebook likes, described either in neurobiological or cognitive terms. Participants were randomly allocated to read that they either had above-average or below-average psychopathic traits. We found no support for the hypothesis that the neuroscientific explanation of psychopathy influences moral behaviour. This casts doubt on the fear that communicating the neuroscience of psychopathy will promote psychopathic attitudes. (shrink)

The construct of moral intensity, proposed by Jones (1991), was used to predict the extent to which individuals were able to recognize moral issues. We tested for the effects of the six dimensions of moral intensity: social consensus, proximity, concentration of effect, probability of effect, temporal immediacy and magnitude of consequences. A scenario-based study, conducted among business individuals in Singapore, revealed that social consensus and magnitude of consequences influenced the recognition of moral issues. The study provided evidence for (...) the effects of temporal immediacy. There was marginal support for the impact of proximity and probability of effect but no evidence that concentration of effect influenced recognition of moral issues. The paper concludes with a discussion of the implications of these results for researchers and organisational practitioners. (shrink)

There is growing evidence that words that are acquired early in life are processed faster and more accurately than words acquired later, even by adults. As neuropsychological and neuroimaging studies have implicated different brain networks in the processing of action verbs and concrete nouns, the present study was aimed at contrasting reaction times to early and later-acquired action verbs and concrete nouns, in order to determine whether effects of word learning age express differently for the two types of words. (...) Our results show that while word frequency affected both types of words in the same way, distinct learning age effects were observed for action verbs and concrete nouns. A further experiment specified that this difference was observed for verbs describing actions belonging to the human motor repertoire, but not for verbs denoting actions past this repertoire (e.g., to neigh). We interpret these data within a recently emerging framework according to which language processing is associated with sensory motor programs. (shrink)

The aim of our experiment was to analyse the effect of the emotional valence (positive, negative, or neutral) on true and false recognition, matching the arousal, frequency, concreteness, and associative strength of the study and recognition words. Fifty younger adults and 46 healthy older adults performed three study tasks (with words of different valence: positive, negative, neutral) and their corresponding recognition tests. Two weeks later, they performed the three recognition tests again. The results show that words (...) with a negative valence produced less true recognition and less false recognition than words with a positive or neutral valence, in both younger and older adults, on the immediate recognition test. This pattern of results was also found in the younger adults on the delayed recognition test, whereas in the older participants, these differences disappeared. Thus, when arousal is controlled, both younger and older adults tend to recognise negative information worse than positive or neutral information, but they also commit fewer errors. Results would suggest that the greater arousal commonly associated with negative stimuli, rather than their own valence, could explain some of the contradictory results found in the literature. (shrink)