A critical test of the failure-to-engage theory of task switching

When people switch between two tasks, their performance on each is worse than when they perform that task in isolation. One theory of this “switch cost” is the failure-to-engage (FTE) theory, which posits that observed responses are a simple mixture of prepared and unprepared response strategies. The probability that participants use prepared processes can be manipulated experimentally (e.g., by changing preparation time). The FTE theory is a binary mixture model and therefore makes a strong prediction about the existence of fixed points in response time distributions. We found evidence contradicting this prediction, using data from 20 participants in a standard task-switching paradigm. In this article, we examine reasons for the failure of the FTE theory, and we demonstrate that a generalized version of FTE theory accommodates our data.     

The role of ego-identity status in mating preferences

This study was designed to examine the role ego-identity plays in the mating preferences of late adolescents. In addition to examining the variance in mating preferences explained by ego-identity status, it was hoped that the results could assist in testing the competing Sexual Strategies (Buss & Schmitt, 1993) and Social Role (Eagly & Wood, 1999) theories. Ego-identity and the sex of the participant accounted for a significant amount of variance in the number of sexual partners desired and the penchant for short-term mating. The sex of the participant was the lone predictor of the importance placed on the mate characteristics of physical attractiveness and earning capacity with females placing more emphasis on the former and males placing more emphasis on the latter characteristic.     

Social tuning of the self: consequences for the self-evaluations of stereotype targets

These experiments examined how social interactions with individuals who ostensibly have stereotype-relevant views affect the self-evaluations of stereotype targets. Participants believed they were going to interact, or actually interacted, with a person who ostensibly had stereotype-consistent or stereotype-inconsistent views about their social group. Consistent with shared reality theory, participants' self-evaluations (Experiments 1, 2, and 3) and behavior (Experiment 2) corresponded with the ostensible views of the other person when affiliative motivation was high. This occurred even when it was likely to be detrimental to participants' nonaffiliative outcomes (Experiment 3). Experiment 4 showed that self-evaluative shift away from the ostensible views of another person was a function of social distance motives, also consistent with shared reality theory.     

Social tuning of automatic racial attitudes: the role of affiliative motivation

Consistent with the affiliative social tuning hypothesis, this study showed that the desire to get along with another person shifted participants' automatic attitudes toward the ostensible attitudes of that person. In Experiment 1, the automatic racial attitudes of women but not men emulated those of an experimenter displaying race-egalitarian attitudes or attitudes neutral with respect to race. Mediational analysis revealed that the gender difference in social tuning was mediated by liking for the experimenter. In Experiment 2, the likability of the experimenter was manipulated. Individuals who interacted with a likable experimenter exhibited social tuning more so than did those who interacted with a rude experimenter. These findings suggest that affiliative motives may elicit malleability of automatic attitudes independent of manipulations of social group exemplars.     

Immigrant adolescents behaving as culture brokers: a study of families from the former Soviet Union

In immigrant families, culture brokering (CB) occurs when children mediate the new culture for their family. The authors examined CB in Russian immigrant adolescent-mother dyads (N=226) to determine the types and amounts of CB that Russian adolescents performed, why adolescents assumed the CB role, and how the role affected adolescent and familial functioning. The present results indicated that most adolescents reported CB for their families (89%). Children of families that more recently arrived in the U.S., with mothers who were less American-language acculturated, culture brokered more. Higher levels of CB related to (a) higher adolescent stress and reports of problems at home and with friends and (b) lower feelings of school membership. Parent-reported problems at home did not relate to CB. The authors discussed implications for future research on the role of the child as culture broker.     

AUTOMATIC STEREOTYPING

Abstract— Two experiments tested a form of automatic stereotyping Subjects saw primes related to gender (e g, mother, father, nurse, doctor ) or neutral with respect to gender (e g, parent, student, person ) followed by target pronouns (stimulus onset asynchrony = 300 ms) that Mere gender related (e g, she, he ) or neutral ( it, me ) or followed by nonpronouns ( do. alt , Experiment 2 only) In Experiment I, subjects judged whether each pronoun was male or female Automatic gender beliefs (stereotypes) were observed in faster responses to pronouns consistent than inconsistent with the gender component of the prime regardless of subjects' awareness of the prime-target relation, and independently of subjects explicit beliefs about gender stereotypes and language reform In Experiment 2, automatic stereotyping was obtained even though a gender irrelevant judgment task (pronoun/not pronoun) was used Together, these experiments demonstrate that gender information imparted by words can automatically influence judgment, although the strength of such effects may be moderated by judgment task and prime type.     

The effects of different types of interpretation on outcome in group psychotherapy

Interpretations in three psychodynamic therapy groups were rated according to Yalom's typology. Results indicated that here-and-now interpretations were employed over four times as often as historical ones. Outcome results, as measured by the DSM-III-R, indicated that interpretations of a client's present patterns of behavior were most effective in changing pathology, followed by interpretations of the impact of the client's behavior on others, then by historical interpretations. Interpretations of motivation tended to make clients worse. Client session satisfaction ratings demonstrated the same pattern as the outcome results.     

Limbic networks and associative learning: I. Entorhinal contributions to instrumental conditioning

The hippocampal formation is a highly delineated brain structure that is believed to play a prominent role in learning and memory. The present experiment evaluated the contributions of medial and lateral perforant path input to bar press-conditioning under (a) continuous and (b) differential reinforcement of low rates of responding (DRL) schedules, and (c) shuttlebox avoidance conditioning. Bilateral deafferentation of either pathway had no effect on the acquisition of bar press responses or on performance under the DRL schedule. Deafferentation of the medial pathway facilitated acquisition of avoidance responses in a manner much like the effects seen in hippocampectomized animals. It is suggested that the medial perforant path participates in the expression of correlated patterns of neuronal discharge known to develop within the hippocampus and that this “model” serves to modulate the temporal characteristics of simple conditioned reflexes. Loss of the modulatory influence of the model may affect acquisition and extinction rates. Contributions of other hippocampal circuits are discussed in relation to established deficits. Preliminary results of this experiment were presented at the second annual convention of the American Psychological Society, Dallas, Texas, June 1990.