Neoclassical economics assumes that individuals have stable and context-independent preferences, and uses preference satisfaction as a normative criterion. By calling this assumption into question, behavioural findings cause fundamental problems for normative economics. A common response to these problems is to treat deviations from conventional rational choice theory as mistakes, and to try to reconstruct the preferences that individuals would have acted on, had they reasoned correctly. We argue that this preference purification approach implicitly uses a dualistic model of the (...) class='Hi'>human being, in which an inner rational agent is trapped in an outer psychological shell. This model is psychologically and philosophically problematic. (shrink)

The CRISPR-Cas9 system is a genetic editing technology that, in addition to expanding the possibilities for scientific research, promotes reflections associated with human dignity, biological control, therapy, and genetic improvement. Bioethical discussions on the challenges and repercussions of the CRISPR-Cas9 system are reviewed. As a result, bioethical questions tend to problematize the application to non-human organisms, primary research, and the human somatic and germline. In brief, it is necessary to increase the levels of safety and effectiveness so (...) that the benefits outweigh the risks, while reducing bioethical concerns and increasing the credibility of the technique. (shrink)

Presentamos las dificultades relatadas por estudiantes de pedagogía de dos universidades latinoamericanas, en el contexto de la pandemia COVID-19. Los datos fueron obtenidos a partir de registros escritos y encuestas respondidas por los estudiantes y analizados a partir de una visión freireana de educación. Los problemas junto con el sufrimiento emocional de los jóvenes revelaron el distanciamiento entre docentes y estudiantes y entre sus pares, lo que impactó su proceso formativo. Una práctica educativa que valore el diálogo y los contextos (...) de intereses y motivaciones de los estudiantes se torna fundamental para su formación académica más humana, integrada y transdisciplinar. (shrink)

Este escrito tiene como objetivo describir los principales enunciados que gravitaron a la hora de analizar el contenido de varias obras literarias que describían sucesos propios del siglo XX en Colombia. Esto con el fin de reconocer las representaciones, las prácticas y los sentidos de la sociedad a lo largo del siglo, así pues, el artículo está orientado en gran medida a responder a la posibilidad de poner en diálogo el estudio de la corriente historiográfica de la historia cultural y (...) su relación con la literatura. (shrink)

Taking a distributed view of language, this paper naturalizes symbol grounding. Learning to talk is traced to — not categorizing speech sounds — but events that shape the rise of human-style autonomy. On the extended symbol hypothesis, this happens as babies integrate micro-activity with slow and deliberate adult action. As they discover social norms, intrinsic motive formation enables them to reshape co-action. Because infants link affect to contingencies, dyads develop norm-referenced routines. Over time, infant doings become analysis amenable. (...) The caregiver of a nine-month-old may, for example, prompt the baby to fetch objects. Once she concludes that the baby uses ‘words’ to understand what she says, the infant can use this belief in orienting to more abstract contingencies. New cognitive powers will develop as the baby learns to act in ways that are consistent with a caregiver’s false belief that her baby uses ‘words.’. (shrink)

Sound moves us. Nowhere is this more apparent than in our responses to genuine emotional vocalizations, be they heartfelt distress cries or raucous laughter. Here, we present perceptual ratings and a description of a freely available, large database of natural affective vocal sounds from human infants, adults and domestic animals, the Oxford Vocal (OxVoc) Sounds database. This database consists of 173 non-verbal sounds expressing a range of happy, sad, and neutral emotional states. Ratings are presented for the sounds (...) on a range of dimensions from a number of independent participant samples. Perceptions related to valence, including distress, vocalizer mood, and listener mood are presented in Study 1. Perceptions of the arousal of the sound, listener motivation to respond and valence (positive, negative) are presented in Study 2. Perceptions of the emotional content of the stimuli in both Study 1 and 2 were consistent with the predefined categories (e.g., laugh stimuli perceived as positive). While the adult vocalizations received more extreme valence ratings, rated motivation to respond to the sounds was highest for the infant sounds. The major advantages of this database are the inclusion of vocalizations from naturalistic situations, which represent genuine expressions of emotion, and the inclusion of vocalizations from animals and infants, providing comparison stimuli for use in cross-species and developmental studies. The associated website provides a detailed description of the physical properties of each sound stimulus along with cross-category descriptions. (shrink)

Mature representations of number are built on a core system of numerical representation that connects to spatial representations in the form of a ‘mental number line’. The core number system is functional in early infancy, but little is known about the origins of the mapping of numbers onto space. Here we show that preverbal infants transfer the discrimination of an ordered series of numerosities to the discrimination of an ordered series of line lengths. Moreover, infants construct relationships between (...) individual numbers and line lengths that vary positively, but not between numbers and lengths that vary inversely. These findings provide evidence for an early developing predisposition to relate representations of numerical magnitude and spatial length. A central foundation of mathematics, science and technology therefore emerges prior to experience with language, symbol systems, or measurement devices. (shrink)

The sensorimotor account of vision proposed by O'Regan & Noë (O&N) challenges the classical view of visual cognition as a process of mentally representing the world. Many infant cognition researchers would probably disagree. I describe the surprising ability of young infants to represent and reason about the physical world, and ask how this capacity can be explained in non-representational terms. As a first step toward answering this question, I suggest that recent models of embodied cognition may help illustrate a (...) way of escaping the representational trap. (shrink)

This article examines infant attachment styles from the perspective of cognitive and emotional subjectivity. We review new data that show that individual differences in infants’ attachment behaviors in the traditional Strange Situation are related to (a) infants’ subjective construals of infant—caregiver interactions, (b) their attention to emotional expressions, and (c) polymorphisms in the oxytocin receptor (OXTR) gene. We use these findings to argue that individual differences in infants’ attachment styles reflect, in part, the subjective outcomes of objective (...) experience as filtered through genetic biases in socioemotional information processing. (shrink)

This paper proposes an intermediate account of personhood, based on the capacity to participate in intersubjective interactions. We articulate our proposal as a reply to liberal and restrictive accounts, taking Mark Rowlands’ and Stephen Darwall’s proposals as contemporary representatives of each view, respectively. We argue that both accounts fall short of dealing with borderline cases and defend our intermediate view: The criteria of personhood based on the second-person perspective of mental state attribution. According to it, a person should be able (...) to participate in intersubjective interactions. We apply our proposal to the borderline cases of non-human primates and human infants. (shrink)

Recent studies with human infants and nonhuman primates reveal that posture interacts with the expression and stability of handedness. Converging results demonstrate that quadrupedal locomotion hinders the expression of handedness, whereas bipedal posture enhances preferred hand use. From an evolutionary perspective, these findings suggest that right-handedness may have emerged first, following the adoption of bipedal locomotion, with speech emerging later.

To Vallortigara & Rogers's (V&R's) evidence of everyday directional asymmetries in the natural environment of a variety of species, we offer one more example for human beings. It is the bias for holding an infant on the left side, and it illustrates several themes in the target article.

I present my observations of combinatory manipulations by three infant chimpanzees in a series of test tasks. Common characteristics of motor patterns were observed across the tasks between both infant chimpanzees and 1-year-old infants. Based on the results, I point out that comparative approach can illuminate Thelen et al.'s arguments.

Byrne & Russon have argued that imitation is not an all-or-none phenomenon but may instead occur at different levels. Although I applaud their theoretical framework, their data provide little empirical support for the theory. Data from studies of human infants, however, are consistent with the view that imitation may occur at different levels. These data may provide better support for Byrne & Russon's hierarchical view of imitation than the nonhuman primate data that their theory was developed to explain.

In this review, we discuss the implications of placing an infant in the supine position with respect to human cognitive development and evolution. When human infants are born, they are relatively large and immature in terms of postural and locomotor ability as compared with their closest relatives, the great apes. Hence, human mothers seemingly adopt a novel pattern of caring for their large and heavy infants, i.e., placing their infants in the supine position; this (...) promotes face-to-face communication with their infants. Moreover, infants in the supine position can interact with other nearby individuals in the same manner from an early age. In addition, the infants can also explore their own body parts and/or objects with their hands since the hands are not required to support the body and are therefore, free to move. These activities are considered to be fundamental to the early development of human social and nonsocial cognition, including knowledge of self, in the first six months after birth. Further, developmental continuity in the voluntary exploratory movements in the prenatal period to the early postnatal period is also discussed. (shrink)