Improved advising ratings in an undergraduate psychology program

During the late 1990s, the psychology department of Indiana University-Purdue University Indianapolis made investments in its undergraduate advising program in terms of additional professional personnel, a new orientation course, an experimental intrusive advising track, innovative peer activities, and expanded physical facilities. Against this backdrop of innovations, from 1995 to 2001 an exit survey of graduating seniors (N=311) showed improved evaluations of departmental counseling services. Ratings of the obtainability of advising on courses and the quality of course and career advising all showed significant upward shifts over the seven years of study. Regarding a specific innovation, students who completed a 1-hr. orientation course gave higher mean counseling ratings than those not enrolled.     

The auditory redundant signals effect: An influence of number of stimuli or number of percepts?

In two experiments, we examined simple reaction times (RTs) for detection of the onsets and offsets of auditory stimuli. Both experiments assessed the redundant signals effect (RSE), which is traditionally defined as the reduction in RT associated with the presentation of two redundant stimuli, rather than a single stimulus. In Experiment 1, with two identical tones presented via headphones to the left ear, right ear, or both, no RSE was found in responding to tone onsets, but a large RSE was found in responding to their offsets. In Experiment 2, with a pure tone and white noise as the two stimulus alternatives, RSEs were found for responding to both onsets and offsets. The results support the notion that the occurrence of an RSE depends on the number of percepts, rather than the number of stimuli, and on the requirement to respond to stimulus onsets versus offsets. The parallel grains model (Miller & Ulrich, 2003) provides one possible account of this pattern of results.     

Reading direction shifts visuospatial attention: An Interactive Account of attentional biases

A growing amount of evidence confirms the influence of reading and writing habits on visuospatial processing, although this phenomenon has been so far testified mainly as a lateralized shift of a single behavioral sign (e.g., line bisection), with lack of proof from pure right-to-left readers. The present study contributed to this issue by analyzing multiple attentional and motor indexes in monolingual Italian (i.e., reading from left-to-right), and monolingual (i.e., reading from right-to-left) and bilingual Israeli (i.e., reading from right-to-left in Hebrew but also from left-to-right in English) participants' visuospatial performance. Subjects were administered a computerized standard star cancellation task and a modified version in which English letters and words were replaced by Hebrew ones. Tasks were presented on a graphics tablet, allowing recording of both chronometric and spatial parameters (i.e., measured in (x, y) vector coordinates). Results showed that reading direction modulated the on-line visuomotor performance (i.e., left-to-right vs. right-to-left shifts) from the beginning (i.e., first mark) to the end of the task (i.e., spatial distribution of omissions and subjective epicenter). Additionally, the spatial bias observed in a computerized line bisection task was also related to the participants' habitual reading direction. Overall, the results favor the proposal of an Interactive Account of visuospatial asymmetries, according to which both cultural factors, such as the directional scanning associated with language processing, and biological factors, such as hemispheric specialization, modulate visuospatial processing. Results are discussed in light of recent behavioral and neuroanatomical findings.     

Some observations on the relationship between language and verbal thought in a psychotic adolescent

Abstract

Janine Chasseguet-Smirgel: The Ego Ideal. Free Association Books, 1985. Hardback £18.50; paperback £8.95.

Creativity and Perversion. Free Association Books, 1985. Hardback £11.95; paperback £6.95.

Jerome Kagan: The Nature of the Child. Published by Basic Books, 1984. Hardback, £15.85. Also by Harper and Row. Paperback, £4.95.

Julia Segal: Phantasy in Everyday Life. Published by Pelican, 1985. Paperback £2.95.     

Immigrant Participation in the Transnational Era: Latin Americans' Experiences with Collective Organising in Toronto

This paper examines the challenges migrant groups that are new and internally diverse face to participate and build community in host societies today. Qualitative research findings on Latin American migrants' experiences in Toronto, Canada, reveal that the group's participation is the result of a complexity of social and spatial processes. The paper contributes to current debates on the study of immigrant integration in three ways: (1) by focusing on immigrants' collective forms of organising, (2) by responding to ongoing calls for a closer examination of intra-group diversity, and (3) by drawing on transnationalism research to avoid the use of essentialising categories in the study of immigrant groups that are internally diverse.     

Anterior temporal cortex and semantic memory: Reconciling findings from neuropsychology and functional imaging

Studies of semantic impairment arising from brain disease suggest that the anterior temporal lobes are critical for semantic abilities in humans; yet activation of these regions is rarely reported in functional imaging studies of healthy controls performing semantic tasks. Here, we combined neuropsychological and PE T functional imaging data to show that when healthy subjects identify concepts at a specific level, the regions activated correspond to the site of maximal atrophy in patients with relatively pure semantic impairment. The stimuli were color photographs of common animals or vehicles, and the task was category verification at specific (e.g., robin), intermediate (e.g., bird), or general (e.g., animal) levels. Specific, relative to general, categorization activated the antero-lateral temporal cortices bilaterally, despite matching of these experimental conditions for difficulty. Critically, in patients with atrophy in precisely these areas, the most pronounced deficit was in the retrieval of specific semantic information.