This article focuses on those Iliadic characters who fall in battle to the poem’s major heroes. Homer has various ways to make these characters minor, such as through processes of obscuring or typification or by focusing on a specific body part. By making a character minor, the poet signals that we need not attend to him. After he makes a character minor, the poet can suggest that in the process of being made minor a character paradoxically ends up diverting attention (...) from another character, or he can portray minorness as marked by an inability to divert attention from another. The poet can present in one episode these two different visions of minorness and can make one character depict another as minor by using the tactics deployed by the narrator. This study accentuates the narratological complexities that arise in the poet’s depiction of minor characters. That complexity shapes our understanding of the Iliad’s concern with the distribution of narrative attention among all its characters. (shrink)

The use of automation in cars is increasing. In future vehicles, drivers will no longer be in charge of the main driving task and may be allowed to perform a secondary task. However, they might be requested to regain control of the car if a hazardous situation occurs. Performing a secondary task might increase drivers' mental workload and consequently decrease the takeover performance if the workload level exceeds a certain threshold. Knowledge about the driver's mental state might hence be useful (...) for increasing safety in conditionally automated vehicles. Measuring drivers' workload continuously is essential to support the driver and hence limit the number of accidents in takeover situations. This goal can be achieved using machine learning techniques to evaluate and classify the drivers' workload in real-time. To evaluate the usefulness of physiological data as an indicator for workload in conditionally automated driving, three physiological signals from 90 subjects were collected during 25 min of automated driving in a fixed-base simulator. Half of the participants performed a verbal cognitive task to induce mental workload while the other half only had to monitor the environment of the car. Three classifiers, sensor fusion and levels of data segmentation were compared. Results show that the best model was able to successfully classify the condition of the driver with an accuracy of 95%. In some cases, the model benefited from sensors' fusion. Increasing the segmentation level increased the performance of the model for windows smaller than 4 min, but decreased for windows larger than 4 min. In conclusion, the study showed that a high level of drivers' mental workload can be accurately detected while driving in conditional automation based on 4-min recordings of respiration and skin conductance. (shrink)

Today’s students are accustomed to a world where information is available on-demand, anywhere and anytime. They bring this expectation to their academic world where they want to work cooperatively and flexibly, using the modern information processing tools and access with which they are familiar. New hardware platforms such as e-Readers and tablet computers have made substantial inroads in the consumer market. E-Readers are becoming more prevalent in universities – replacing the need for physical textbooks, lecturing notes and other academic documents. (...) Many universities are now running pilot programs, while some are already using e-Readers. Tablet computers, apart from their ability to read, edit or create various types of information documents, also offer additional features such as collaborative and social networking services. This empirical research project investigated student perspectives on the educational use of e-Readers and tablets within the University of Cape Town. A questionnaire was distributed to a significant portion of the student population and stratified according to seniority and faculty. Quantitative data was gathered and analysed on themes ranging from awareness to preferences to facilitating conditions around e-Readers within the academic environment. The students sent a clear signal: that they are keen to embrace these new technologies and the advantages they offer. E-Books can be updated automatically and downloaded to e-Readers instantly from almost anywhere in the world. Students feel they would benefit greatly through the use of e-Readers and many believe they are set to replace books completely. Having access to a portable library of information in their backpacks would benefit both students and the environment. However, there are a number of barriers to the comprehensive introduction of these technologies, including the cost of the devices; cost, rights and file format of e-books; the need for a critical mass of textbooks available in digital format and device characteristics such as battery life, and ubiquitous Wi-Fi access. (shrink)

In our daily lives, we are continually involved in decision-making situations, many of which take place in the context of social interaction. Despite the ubiquity of such situations, there remains a gap in our understanding of how decision-making unfolds in social contexts, and how communicative signals, such as social cues and feedback, impact the choices we make. Interestingly, there is a new social context to which humans are recently increasingly more frequently exposed—social interaction with not only other humans but also (...) artificial agents, such as robots or avatars. Given these new technological developments, it is of great interest to address the question of whether—and in what way—social signals exhibited by non-human agents influence decision-making. The present study aimed to examine whether robot non-verbal communicative behavior has an effect on human decision-making. To this end, we implemented a two-alternative-choice task where participants were to guess which of two presented cups was covering a ball. This game was an adaptation of a “Shell Game.” A robot avatar acted as a game partner producing social cues and feedback. We manipulated robot's cues (pointing toward one of the cups) before the participant's decision and the robot's feedback (“thumb up” or no feedback) after the decision. We found that participants were slower (compared to other conditions) when cues were mostly invalid and the robot reacted positively to wins. We argue that this was due to the incongruence of the signals (cue vs. feedback), and thus violation of expectations. In sum, our findings show that incongruence in pre- and post-decision social signals from a robot significantly influences task performance, highlighting the importance of understanding expectations toward social robots for effective human–robot interactions. (shrink)

Dual process accounts of affective learning state that the learning of likes and dislikes reflects a learning mechanism that is distinct from the one reflected in expectancy learning, the learning of signal relationships, and has different empirical characteristics. Affective learning, for example, is said not to be affected by: (a) extinction training; (b) occasion setting; (c) cue competition; and (d) awareness of the CS-US contingencies. These predictions were tested in a series of experiments that employed simple Pavlovian conditioning procedures. (...) Neutral visual pictures of geometric shapes, or tactile conditional stimuli (CS) were paired with aversive electrotactile unconditional stimuli (US). Dependent measures were physiological (skin conductance, blink startle modulation) or verbal (US expectancy, on-line and off-line ratings of CS pleasantness). Different combinations of these dependent measures were employed across different experiments in an attempt to assess affective and expectancy learning simultaneously. Changes in CS pleasantness as indexed by ratings or blink startle modulation were readily observed. However, contrary to the predictions from dual-process accounts, results indicated that acquired CS unpleasantness is subject to extinction, occasion setting, cue competition, and not found in absence of CS-US contingency awareness. (shrink)

Multi-point Temperature Measurement has always been very important aspect of physical instrumentation mainly in environmental and Industrial application. A multi-point temperature measurement system has been developed to measure temperature at different points simultaneously. This multi-channel system is designed specifically for measuring snow temperature at 28 different points In snow layers and this multi-point data is used in modeling of snow cover. The interfacing of such multi-channel system to Data acquisition system is one of the most critical design aspects, which affect (...) the overall performance of the system. The temperature sensor system and Data Acquisition System may be working satisfactorily when operated independently but total system integrity is absolutely important when these two sub-systems are interfaced together. Further operating conditions in snow causes many performance and reliability issues to be tackled through proper design. This paper discusses the design aspects involved in the interfacing of the multi-channel temperature measurement system with the Data Acquisition System specifically for Snow hydrological applications. (shrink)

Negative conditional stimulus valence acquired during fear conditioning may enhance fear relapse and is difficult to remove as it extinguishes slowly and does not respond to the instruction that unconditional stimulus presentations will cease. We examined whether instructions targeting CS valence would be more effective. In Experiment 1, an image of one person was paired with an aversive US, while another was presented alone. After acquisition, participants were given positive information about the CS+ poser and negative information about the CS− (...) poser. Instructions reversed the pattern of differential CS valence present during acquisition and eliminated differential electrodermal responding. In Experiment 2, we compared positive and negative CS revaluation by providing positive/negative information about the CS+ and neutral information about CS−. After positive revaluation, differential valence was removed and differential electrodermal responding remained intact. After negative revaluation, differential valence was strengthened and differential electrodermal responding was eliminated. Unexpectedly, the instructions did not affect the reinstatement of differential electrodermal responding. (shrink)

The conditions for verbal irony comprehension implicitly or directly claimed as necessary by all of the recent philosophic, linguistic and psycholinguistic theories of verbal irony (Clark and Gerrig 1984; Kreuz and Glucksberg 1989; Kumon-Nakamura, Glucksberg and Brown 1995; Sperber and Wilson 1981, 1986) were experimentally tested. Allusion to a violation of expectations, predictions, desires, preferences, social norms, etc., was confirmed as a necessary condition, but pragmatic insincerity was not. Pragmatically sincere comments can be comprehended ironically. A revised (...) set of conditions was proposed, involving intentional violation of Gricean conversational maxims and the portrayal of a contrast between expectations and reality. A cautionary note was made, however, regarding the viability of a single account of verbal irony comprehension. (shrink)

Several theories propose that one of the core functions of inner speech (IS) is to support subjects in the completion of cognitively effortful tasks, especially those involving executive functions (EF). In this paper we focus on two populations who notoriously encounter difficulties in performing EF tasks, namely, people diagnosed with schizophrenia who experience auditory verbal hallucinations (Sz-AVH) and people within the Autism Spectrum Conditions (ASC). We focus on these two populations because they represent two different ways in which IS (...) can fail to help in EF tasks, which can be illustrative for other mental conditions. First, we review the main components of EF (Section 1). Then we explain the functions that IS is taken to perform in the domain of EF (Section 2) and review the evidence concerning problems about EF in the two populations of our study: Sz-AVH (Section 3) and ASC (Section 4). After this we further detail our account about what a properly functioning IS can do for both populations and how different IS profiles may impact EF performance: in the case of Sz-AVH, the uncontrolled and intrusive character of IS negatively affects EF performance, whereas in ASC, EF is not sufficiently supported by IS, given the tendency in this population to present a diminished use of IS (Section 5). We finally briefly discuss Attention Deficit/Hyperactivity Disorder (ADHD) and Developmental Language Disorders (DLD). (shrink)

The conditions for verbal irony comprehension implicitly or directly claimed as necessary by all of the recent philosophic, linguistic and psycholinguistic theories of verbal irony were experimentally tested. Allusion to a violation of expectations, predictions, desires, preferences, social norms, etc., was confirmed as a necessary condition, but pragmatic insincerity was not. Pragmatically sincere comments can be comprehended ironically. A revised set of conditions was proposed, involving intentional violation of Gricean conversational maxims and the portrayal of a contrast (...) between expectations and reality. A cautionary note was made, however, regarding the viability of a single account of verbal irony comprehension. (shrink)