Cognitive Processing and Self-Report of Lateral Preference

Our knowledge of the human brain has increased more during the past 40 years than at any other time in history. Of particular interest have been the findings of a correspondence between cognitive functions and individual structures of the brain. Similar from a gross anatomical point of view, the hemispheres of the brain have been shown to serve specialized cognitive functions. This work offers an overview of the cognitive aspects of cerebral lateralization as a context for considering this issue, followed by a review of specific self-report techniques in the appraisal of lateral preference.     

Temporally spaced responding by pigeons: development and effects of deprivation and extinction

In the first five or six sessions on a DRL 20-sec schedule of reinforcement there developed a stable performance characterized by a relatively constant conditional probability of occurrence (IRTs/op) of interresponse times (IRTs) of durations greater than 5 or 6 sec. Extinction and the level of deprivation changed both the overall rate of responding and the form of the function relating the duration of an IRT to its value of IRTs/op. The value of IRTs/op decreased more rapidly for short than for longer IRTs, resulting in the emergence of a finer discrimination of IRT duration.     

Operant extinction near zero

Extinction in the presence of each of two stimuli reduces the rate of pecking in the presence of each of them to zero or near zero. When, however, pecking a third stimulus is reinforced, responding is resumed under the other stimuli, and more responses are made to the stimulus least associated with extinction.     

Some limitations on behavioral contrast and induction during successive discrimination

A pigeon's rate of pecking on a red key, reinforced at a constant frequency, may be changed by increasing or decreasing the frequency of reinforcement of pecking on a successively presented green key. The changes in the rate of pecking on red, called interactions, are of two types: contrast, in which the changes in the rates of pecking on the two colors are in opposite directions; and, induction, in which the changes in the rates are in the same direction. In previous data, a change in the frequency of reinforcement associated with the green key produced a corresponding change in the rate of pecking the green key and an opposite change (contrast) in the rate of pecking on the red key. The present data suggest that the magnitude of contrast is very small if pecking on the red key is reinforced at a high enough frequency (about 40 reinforcements per hr in the present experiment). Also, given that interactions occur, induction rather than contrast may result from small changes in a low frequency of reinforcement associated with green.     

后马克思主义是超越马克思主义的激进的政治理论和实践吗？

什么是后马克思主义?它对于马克思主义理论和政治的批判如何经得起详细审查?它在什么程度上为2l世纪提供了一种超越马克思主义的激进政治理论和实践?存在于这些直截了当的问题背后的,是内容广泛、多种多样的献,这些献或背离了马克思主义对于激进的解放派政治所作的贡献,或对这种贡献提出挑战,     

Dueling Experiences and Dual Ambivalences: Emotional and Motivational Ambivalence of Women in High Status Positions

A laboratory study demonstrates that women in high status positions experience emotional ambivalence (simultaneous experience of positive and negative affect) and motivational ambivalence (simultaneous desires to build relationships and display power). These effects were found with 2 different measures of ambivalence, 1 derived from the attitudinal ambivalence literature and the other from the structure of affect literature. These findings have implications about the experience of women in the workplace, as well as the current debates concerning structure of affect.     

Immigration, Gender, and Psychosocial Adjustment: A Study of 150 Immigrant Couples in Israel

Research on gender differences in the process of psychosocial adjustment of recent immigrants is scant. This study was designed to assess occupational, social, and personal/psychological aspects of adjustment to life in Israel among 150 heterosexual couples that immigrated together from the former Soviet Union after 1990. The mean age of participants was 46, over 60% had postsecondary education, and have lived in Israel for the average of 9 years. The study included a structured survey and in-depth interviews with 15 couples. The results suggest that overall levels of adjustment and well-being reported by men and women are rather similar, although they take somewhat different paths toward social integration. Men were doing better in the economic/occupational domain, whereas women were more active in the social domain (e.g., building their personal networks, exploring new lifestyles). Both men and women had experienced occupational downgrading in Israel, but more women worked in physically-demanding jobs such as geriatric nursing and cleaning. Women suffered a more dramatic occupational downgrading than men, as well as lower job security and under/unemployment. Yet, they showed more flexibility and tolerance of their new work roles. No tangible gender differences have been found in the general indicators of psychosocial well-being and overall satisfaction with life in Israel. Processes of social adjustment among immigrants from the former Soviet Union may be less gendered than in other immigrant communities, reflecting more egalitarian gender relations in the Russian/Soviet culture.     

Effects of Gender Diversity on Performance and Interpersonal Behavior in Small Work Groups

We examined the separate and combined impact of gender composition and training method on both the performance and interpersonal behaviors exhibited in small work groups. Participants were scheduled in groups of three for two 1-h sessions that occurred 1 week apart. In Session 1, groups were trained to assemble the AM portion of a radio. In Session 2, groups were tested on their training. Analyses indicated that groups whose members were trained together took longer to assemble their radios and made more errors than groups whose members were trained apart. No performance differences were found between mixed-gender and same-gender groups. However, women were less task-oriented in mixed-gender than in same-gender groups, but men were more task-oriented in mixed-gender than in same-gender groups. Further, solo women were less talkative than women in the majority, whereas men were more talkative when they were solos rather than in the majority. Implications for the nature of training and gender composition in groups in the workplace are discussed.     

Contextual effects on reading aloud: evidence for pathway control

Recent evidence suggests that the processes responsible for generating a phonological code from print are flexible in skilled readers. An important goal, therefore, is to identify the conditions that lead to changes in how a phonological code is computed. Five experiments are reported that examine whether phonological processes change as predicted by the pathway control hypothesis when reading aloud words and nonwords. Changes in reading processes were assessed by measuring the effect of predictable switches between stimulus categories across trials. The results of the present experiments are argued to be consistent with the pathway control hypothesis.