Binocular disparity as a discriminable stimulus parameter for young infants

The ability of 8-week-old infants to discriminate between projected stereograms with and without retinal disparity was tested with an habituation-dishabituation paradigm. Infants in two experimental groups received six trials with either the disparity or the nondisparity stimulus and then were given two trials with the other display. Infants in two control groups viewed the same stimulus, either disparity or nondisparity, on all eight trials. There was a suggestion of some response decrement over time in both cardiac deceleration and sucking suppression, although this effect was not significant. However, significant increment was obtained on the dishabituation trials for heart rate in the group that was shifted from the nondisparity to the disparity stimulus. These results were interpreted as indicating that the infants could discriminate between stimuli when the only difference between them was binocular disparity.     

Remembering a criminal conversation: beyond eyewitness testimony

Unlike the important body of work on eyewitness memory, little research has been done on the accuracy and completeness of "earwitness" memory for conversations. The present research examined the effects of mode of presentation (audiovisual/ auditory-only) on witnesses' free recall for utterances in a criminal conversation at different retention intervals (immediate/delayed) within a single experiment. Different forms of correct recall (verbatim/gist) of the verbal information as well as different types of errors (distortions/fabrications) were also examined. It was predicted that participants in the audiovisual modality would provide more correct information, and fewer errors than participants in the auditory-only modality. Participants' recall was predicted to be impaired over time, dropping to a greater extent after a delay in the auditory-only modality. Results confirmed these hypotheses. Interpretations of the overall findings are offered within the context of dual-coding theory, and within the theoretical frameworks of source monitoring and fuzzy-trace theory.     

Receptive and Productive Recall with the Keyword Mnemonics in Bilingual Students

The efficacy of keyword mnemonics in the learning of the non-dominant language in bilingual students was assessed. Of a total of 237 Compulsory Secondary Education students who participated in the study, 102 students used keyword mnemonics and 100 students used the rote method to learn the Spanish meaning of a list of 20 Galician words (the remaining 35 students generated the keywords to be used in the study). Moreover, each participant’s image control was assessed. The recall of the meaning of words was greater in the keyword mnemonics group than in the rote learning group both in terms of receptive and productive recall. Moreover, participants with high image control had better recall than those with low image control ability.     

What standardized tests ignore when assessing individuals with neurodevelopmental disorders / Lo que ignoran los tests estandarizados en la evaluación de personas con trastornos del neurodesarrollo

Abstract

In this article we critique the use of traditional standardized tests for the cognitive assessment of children with neurodevelopmental disorders. Limitations stem from the lack of integrating (a) results from research into the psychological functioning of these populations, and (b) the main arguments underlying models of human development. We identify four secondary issues in this discussion: (1) these instruments cannot be used with children who have particularly low cognitive functioning; (2) little or no variance in the scores obtained by individuals with neurodevelopmental disorders, because all are at floor, prevent adequate interpretations; (3) measurements do not provide information useful for the design of intervention strategies; and (4) different cognitive and/or neural processes may underlie behavioural scores ‘in the normal range’. Rethinking traditional assessment methods in favour of technologically-mediated games yields new cognitive assessment possibilities.     

Evolving Development: An Evolutionary Perspective on Development for an Interconnected World

The notion of development has been permeated by concepts and methods from positivistic science. As a result, many development initiatives are reductionistic, myopic, and with little or impact on the improvement of the quality of life and the sustainability of communities and societies. This article marks the beginning of a transdisciplinary inquiry among the authors, motivated by direct interest in the issue of development, per se, and in particular, Mexico's development. Our inquiry departs from and weaves together our various areas of expertise and experience, including: systems theory, general evolution theory, economic development, technology transfer, social innovation, sustainable development, environmental behavior, social systems design, and education. The article reviews the concept of development from an evolutionary and systemic perspective. It outlines the foundations of evolutionary development in terms of theory, philosophy, and methodology and provides a conceptual framework for future research aimed at the articulation of a practical model for evolutionary development.     

Kant on Acting from Juridical Duty

ABSTRACT

A much debated passage in the Metaphysics of Morals often leads commentators to believe that it is not possible to act from juridical duty. On the one hand, Kant says that all lawgiving includes an incentive ‘which connects a ground to determining choice to this action subjectively with the representation of the law’ (MM: 218). On the other hand, he claims that juridical lawgiving ‘does not include the incentive of duty in the law’ (MM: 219). The first claim seems to entail that agents can perform a juridical duty for the sake of that duty; the second seems to entail that agents cannot perform a juridical duty for the sake of that duty. This paper shows that it is possible to reconcile both passages and to claim that one can act from juridical duty in Kant’s terms. First, it gives an account of what can be called the paradox of juridical duties. Second, it discusses briefly how responses to the paradox remain somewhat unsatisfactory. Finally, it clarifies how agents can act with no other incentive but the actual juridical duty without endangering the Kantian morality-law divide.