Short-term memory scanning viewed as exemplar-based categorization

Exemplar-similarity models such as the exemplar-based random walk (EBRW) model (Nosofsky & Palmeri, 1997b) were designed to provide a formal account of multidimensional classification choice probabilities and response times (RTs). At the same time, a recurring theme has been to use exemplar models to account for old-new item recognition and to explain relations between classification and recognition. However, a major gap in research is that the models have not been tested on their ability to provide a theoretical account of RTs and other aspects of performance in the classic Sternberg (1966) short-term memory-scanning paradigm, perhaps the most venerable of all recognition-RT tasks. The present research fills that gap by demonstrating that the EBRW model accounts in natural fashion for a wide variety of phenomena involving diverse forms of short-term memory scanning. The upshot is that similar cognitive operating principles may underlie the domains of multidimensional classification and short-term old-new recognition.     

Integrating social knowledge and physical cues when judging the attractiveness of potential mates

Although many women find masculine men physically attractive, the perception that such men are prone to infidelity may limit their appeal as romantic partners. To explore this issue, we first investigated the interplay between the effects of men's face shape (masculinity versus femininity) and social knowledge of men's behavior in previous romantic relationships (faithful versus unfaithful) on women's judgments of men's attractiveness. Analyses suggested that the extent to which women rated masculine men to be more attractive than feminine men was significantly greater when judging men labeled as faithful than when judging men labeled as unfaithful. In a second experiment, we obtained similar results when the women in our study were instructed to imagine they were on a date with each of the men and that, while on the date, they observed him either flirting or not flirting with another woman. These interactions suggest that social knowledge about men's behavior in romantic relationships can offset one of the costs that women associate with choosing a masculine mate, increasing the appeal of masculine men. More fundamentally, these findings suggest integration of social knowledge and information from facial cues in women's attractiveness judgments.     

A case of thalamic aphasia with postmortem verification

This study discusses a case of aphasia after dominant thalamic lesion, a hemorrhagic infarction. Unlike other such cases, both repeated standardized assessment and postmortem verification were available. The patient was assessed at 3 weeks and again at 9 weeks postonset. The aphasia demonstrated the syndrome common to dominant thalamic hemorrhage: fluent but paraphasic output sometimes deteriorating to jargon, comprehension less impaired than this type of output usually indicates, and the least impairment in repetition. As sometimes reported in previous cases, semantic paraphasias were more common than phonemic paraphasias. The lesion was located in the dorsal aspect of the lateral nucleus, but it extended into the pulvinar, including the anterior superior lateral aspect which has been implicated in language by previous studies. Thus, data from this case are consistent with an involvement of the dominant pulvinar in language and suggest that this role involves the semantic aspects of language.     

Rethinking Human Rights A Review Essay on Religion, Relativism, and Other Matters

In reviewing five edited collections and one monograph from the 1990s, the article summarizes the present status of the human rights revolution that was signaled by the adoption in 1948 of the Universal Declaration of Human Rights . It goes on to elaborate and evaluate some of the attempts contained in these books to deal with theoretical and practical controversies surrounding the subject of human rights, particularly the discussion of what to make of cultural relativism as far as human rights are concerned. Finally, the article summarizes some recent thinking and research on a neglected area, namely compliance with human rights standards protecting freedom of religion or belief.     

Neural model for the Stevens’ power law

A neural model, compatible with known “all or none” neurological principles, duplicates or closely approximates Stevens’ power law with any exponent—greater or less than unity. The model has several electronic analogues, and one is discussed. The model predicts experimental neurological and psychological findings.