Anterior Temporal Lobectomy,Hippocampal Sclerosis,and Memory: Recent Neuropsychological Findings

Anterior temporal lobectomy (ATL) is an effective and increasingly utilized treatment for nonlesional, intractable mesial temporal lobe epilepsy. However, this surgery results in domain-specific neuropsychological morbidity for a subset of patients. Within the past decade, multidisciplinary studies have revealed that left ATL patients without significant sclerosis in the resected hippocampus are most at risk for a substantial postacute decline in the ability to encode new verbal information. These patients are also at risk for a significant decrement in confrontation naming and other retrieval-based language abilities. The memory deficit is not attributable to this disruption of language. A relationship between hippocampal sclerosis (HS) status and memory performance has not been identified consistently in right ATL patients, but investigation of new visuospatial measures continues. The influence of variables other than HS on neuropsychological outcome is also discussed.     

The Development of Early Externalizing Problems Among Children from Low-Income Families: A Transformational Perspective

The present study examined pathways leading to early externalizing problems from age 1 to 31/2 in a design that took advantage of our knowledge of normative progression and normative socialization as well as findings from research on risk. A sample of 130 low-income participants was followed longitudinally from 12 to 42 months using observational measures of developmentally salient parenting and child disruptive behavior to predict early externalizing problems. Results are best accommodated by concepts such as transformation and transaction from developmental psychology. For boys, both child and parent variables predicted later externalizing. For girls and boys, the interaction between child noncompliance and maternal rejection was significant.     

Sex-role orientation and relationship development in same-sex dyads

The purpose of the present study was to assess the relationship between sex-role identity, behavioral interaction, and interpersonal attraction in an initial extended encounter. Eighty-two female subjects identified as either feminine, androgynous, or undifferentiated participated in the study in same-sex dyads. The design contrasted three different dyad types: (a) feminine-feminine; (b) androgynous-androgynous; and (c) undifferentiated-undifferentiated. Each dyad completed an initial 5-min unstructured interaction, a 10-min getting-acquainted exercise, and a final 5-min unstructured interaction. Results of the combined initial and final unstructured interactions indicated greater interpersonal attraction between androgynous as compared with undifferentiated and feminine dyad types. During the interactions, androgynous individuals talked, looked at, and gestured to one another longer than did nonandrogynous individuals. There were, however, no significant differences between the feminine and undifferentiated dyads in interpersonal attraction or behavioral interaction. Discussion of the results emphasized the need to examine further the relationship between sex-role identity, behavioral interaction, and attraction in interpersonal encounters.     

Two discrimination test apparatuses for primates

This paper describes two test apparatuses developed to facilitate discrimination learning studies with primates. The semiautomated apparatus provides for presentation of stereometric stimulus materials through the illumination of lamps which make a one-way mirror transparent at the onset of a trial. The totally automated test system was developed to facilitate the collection of Transfer Index (TI) measurements, measurements intended to provide for equitable assessments of the learning-set capabilities of diverse primate genera. The TI test procedures and the system’s operations provide for criterional mastery (67% or 84% responses correct) of two-ehoice visual discrimination problems, consisting of projected patterns, then reversal of cues for the 10 test trials that are of particular significance in calculation of the TI scores.     

Perceptual differentiation of sequential visual patterns

The aftereffects of viewing diagonal lines for 50, 500, and 1,000 msec were measured by the speed and accuracy of identification of a variably tilted test grating. Significant RT and tilt aftereffects were found as functions of the duration of orientation-specific adaptation and the angle of separation between inspection and test lines. The results throw light on anchoring effects of the main visual coordinates and support a structural interpretation of orientational selectivity in human vision.     

Forming, changing, and acting on attitude toward affirmative action programs in employment: a theory-driven approach

A model of attitude toward affirmative action programs (AAPs) was applied in 4 studies involving 1,622 participants. In Study 1, attributes people tacitly associate with AAPs were identified by open-ended elicitation. Using those attributes, an instrument was developed and administered in Studies 2, 3, and 4. In those studies, a multiplicative composite of beliefs and evaluations about the AAP attributes predicted AAP attitude, consistent with M. Fishbein and I. Ajzen's (1975) theory of reasoned action. Demographic effects on AAP attitude were partially mediated by this composite. In Studies 3 and 4, an experimental manipulation of AAP information was successful in changing AAP attitude, but in a way that polarized existing demographic differences. Study 4 also showed that AAP attitude and subjective norm jointly and uniquely predicted intentions to perform AAP-related behaviors. Intentions predicted the actual behavior of mailing postcards to political representatives reflecting participants' support for AAPs.     

The Structure and Sources of Right‐wing Authoritarianism and Social Dominance Orientation

Right‐wing authoritarianism (RWA) and social dominance orientation (SDO) are widely used constructs in research on social and political attitudes. This study examined their hierarchical and correlative structure (across sexes, generations and rater perspectives), as well as how genetic and environmental factors may contribute to individual differences in them (using different rater perspectives and nuclear twin family data). We found a substantive common aspect (beyond shared artificial variance arising from socially desirable responding) underlying both RWA and SDO: aggression against subordinate groups. We discussed how this aspect could help to explain the commonly reported correlation between the two concepts in Western countries. Estimates of genetic and environmental components in RWA and SDO based on self‐reports were quite comparable with those based on peer reports. When controlling for error variance and taking assortative mating into account, individual differences in RWA were primarily due to genetic contributions including genotype–environment correlation, whereas variance in SDO was largely attributable to environmental sources shared and not shared by twins. The findings are discussed in terms of the utility of RWA and SDO as basic constructs to describe individual differences in social attitudes and with respect to the different patterns of genetic and environmental influences that underlie them. Copyright © 2016 European Association of Personality Psychology