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121.
John?G.?BruhnEmail author Stewart?Wolf 《Integrative psychological & behavioral science》2002,38(1):75-87
Essentially all behavior is regulated by the brain in response to information received from within the body or from the environment.
The tangible structures of the brain serve as devices for processing thoughts and emotions as well as information. Stored
among the interacting neural structures are memories of past experiences and responses to them. These intangibles participate
in determining the decisions made and the actions performed by the brain’s structures. There are valuable studies of the clinical
and neurological effects of environmental stimuli, but we need to learn more about the processes that lead to these effects.
More definitive correlations could be made between environmental stimuli and the neurological pathways they create by studying
individual’s real life experiences rather than laboratory simulations alone. 相似文献
122.
Guillem F Bicu M Bloom D Wolf MA Desautels R Lalinec M Kraus D Debruille JB 《Brain and cognition》2001,46(1-2):153-159
This study investigates the associations between the different symptom dimensions of schizophrenia and neuropsychological performances. Globally, the results replicate previously described associations. The "negative" dimension correlates with impaired sustained attention and working memory, thus suggestive of dorsolateral frontal cortex dysfunction. "Disorganization" correlates with the ability to inhibit proactive interference. thus with ventromedial frontal dysfunction. The results also add support to the view that the "psychotic" dimension described in three-dimension models includes in fact two distinct dimensions, (1) "hallucinations," here associated to episodic memory measures, and (2) "delusions", here associated to visuospatial attention, thus suggestive of mediotemporal and posterior neocortical dysfunction, respectively. 相似文献
123.
The SNARC effect refers to the association of smaller numbers with the left and of larger numbers with the right side of extracorporal space (Dehaene, Bossini, & Giraux, 1993). We tested the assumption that, in addition to these associations, numbers are also related to participants' hands. We report two experiments with vertically arranged buttons in which the nature of the SNARC effect depended on whether the task set was button or hand related: In the first case, a vertical location-related SNARC effect occurred, whereas in the second a hand-related SNARC effect was found. Our third experiment confirmed that space-related number representations dominate the SNARC effect when the buttons are arranged horizontally. We concluded that both effector- and space-related number representations can influence and modify the SNARC effect. 相似文献
124.
This study examined how social reality restricts children's tendency for in-group favoritism in group evaluations. Children were faced with social reality considerations and with group identity concerns. Using short stories, in this experimental study, conducted among 3 age groups (6-, 8-, and 10-year-olds), the authors examined the trait attribution effects of reality constraints on eye-color differences and national group differences. The results show that the trait attributions of all age groups were restricted by the acceptance of socially defined reality. In addition, when the information about reality was not considered accurate, only the youngest children showed positive in-group favoritism. It is argued that these findings are useful in trying to reconcile some of the divergent and contrasting findings in the developmental literature on children's intergroup perceptions and evaluations. 相似文献
125.
Pinter B Insko CA Wildschut T Kirchner JL Montoya RM Wolf ST 《Journal of personality and social psychology》2007,93(2):250-265
Two experiments contrasted interactions between group leaders with interactions between individuals in a mixed-motive setting. Consistent with the idea that being accountable to the in-group implies normative pressure to benefit the in-group, Experiment 1 found that accountable leaders were more competitive than individuals. Consistent with the idea that being unaccountable to the in-group implies normative pressure to be cooperative and that high guilt proneness provides motivation to be moral, Experiment 2 found that when guilt proneness was high, unaccountable leaders were less competitive than accountable leaders and did not differ significantly from individuals. In other words, the robust interindividual-intergroup discontinuity effect was eliminated when groups had unaccountable leaders who were high in guilt proneness. 相似文献
126.
For humans and other species, the ability to estimate the physical passage of time is of fundamental importance for perceptual, cognitive or motor functions. Despite this importance, any subjective estimation of temporal durations not only depends on the temporal dynamics of the to-be-timed stimulus or event, but also can be distorted by non-temporal perceptual, cognitive, and emotional effects. This study aimed to further explore critical stimulus characteristics modulating distracter-induced distortions in human time-reproduction. To this end, we investigated whether subjectively rated distracter dimensions of arousal and valence (related to levels of emotionality), or rather stimulus complexity, as a confounder, produce distortions in participants' reproduction of a previously trained target interval. Accuracy and precision of time-reproduction have been measured in distracter-trials, and compared to timing performance in baseline-trials without any distraction. Results showed temporal overproductions in a magnitude of less than distracter duration only for complex distracters. Most importantly, arousal level and valence of distracters were not accountable for temporal distortions. Within an internal clock framework, our pattern of results can best be interpreted in the context of attention-, rather than arousal-based mechanisms of timing. 相似文献
127.
Stress may impair memory retrieval. This retrieval impairment has been attributed to the action of the stress hormone cortisol, which is released with a delay of several minutes after a stressful encounter. Hence, most studies tested memory retrieval 20–30 min after stress, when the stress-induced cortisol increase peaks. In the present experiment, we investigated whether retrieval impairments can also be found at later intervals after stress. To this end, participants learned a list of words on day 1. Twenty-four hours later, they were first exposed to a stressor or a nonstressful control manipulation and completed a recognition test for the words either immediately thereafter, 25 min later, or 90 min later. Our findings showed that stress did not impair memory retrieval when memory was tested immediately after the stressor, before cortisol levels were elevated. However, retrieval performance was impaired 25 min after stress, when cortisol levels peaked, as well as 90 min after the stressor, when cortisol levels had already returned to baseline. The retrieval impairment 90 min after stress appeared to be even stronger than the one after 25 min. These findings suggest that the detrimental effects of stress on retrieval performance may last longer than is usually assumed. 相似文献
128.
Sexual Health Risk Behaviors Among Older Men Who Have Sex With Men: Implications for Interventions
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Franco Dispenza Brian J. Dew Alexander K. Tatum Edison C. M. Wolf 《Adultspan: Theory Research & Practice》2015,14(1):35-48
Sexual health risk behaviors, HIV and sexually transmitted infection (STI) transmission, substance use, stigma, and loneliness among older men who have sex with men are discussed. Implications for interventions are provided, including (a) assessment of health‐related risk behaviors, (b) brief interventions, (c) HIV and STI screening, and (d) relevant developmental and contextual factors. 相似文献
129.
130.
Current research distinguishes between self, directive and social function of autobiographical memories (AMs). To date, only few studies have investigated these functions across adulthood. The comparison of different age groups requires that the functions of AM are measured in the same way across groups (measurement invariance, MI). Additionally to the average use of AM, the factor variances and factor covariances among the three functions were examined across adulthood. In the present study, 1290 adults (aged between 17 and 93 years) completed the Thinking about Life Experiences Questionnaire (TALE), which measures the overall use of AMs for self, directive and social purposes. The sample was divided into five age groups and partial strong MI was established using multigroup confirmatory factor analysis. The results showed an increase in the factor associations as well as a decrease in the factor mean levels of all three functions across age groups. Both findings could be adequately described by linear functions of age. The factor variances were on most parts equal across age groups. These results strengthen the assumption that—from a lifespan developmental perspective—the use of AM may be aligned with relatively normative developmental tasks in a given society. 相似文献