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131.
This study examined sex differences in risk factors associated with adolescent depression in a large sample of boys and girls. Moderation and mediation explanatory models of the sex difference in likelihood of depression were examined. Findings indicate that the factors associated with depression in adolescent boys and girls are quite similar. All of the variables considered were associated with depression, but sex did not moderate the impact of vulnerability factors on likelihood of depression diagnosis. However, negative self-perceptions in the domains of achievement, global self-worth, and physical appearance partially mediated the relationship between sex and depression. Further, girls had higher levels of positive self-perceptions in interpersonal domains that acted as suppressors and reduced the likelihood of depression in girls. These findings suggest that girls' higher incidence of depression is due in part to their higher levels of negative self-perceptions, whereas positive interpersonal factors serve to protect them from depressive episodes. 相似文献
132.
Moldow RL Beck KD Zhug G Beldowicz D Brennan FX Ottenweller JE Servatius RJ 《Stress (Amsterdam, Netherlands)》2001,4(2):137-141
Elevated basal plasma corticosterone concentrations have been observed for several days after the cessation of severe stress. In the present study, we examined whether or not the acute plasma corticosterone response to stress is necessary to elicit increased basal plasma corticosterone concentrations the following day. Pretreatment with metyrapone (100 m a g , intraperitoneal)1 h before inescapable stress (40 2mA tail shocks delivered over a 1-h period) (IS)blocked the acute plasma corticosterone response to IS. However, elevated basal plasma corticosterone concentrations still emerged the next day. These results suggest that the corticosterone response to stress, and its attendant feedback, are not necessary to produce persistent hypothalamic-pituitary-adrenal axis (HPAA) activation. 相似文献
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134.
Identification and ratings of caricatures: Implications for mental representations of faces 总被引:5,自引:0,他引:5
S. Brennan (1985, Leonardo, 18, 170–178) has developed a computer-implemented caricature generator based on a holistic theory of caricature. A face is represented by 37 lines, based on a fixed set of 169 points. Caricatures are produced by exaggerating all metric differences between a face and a norm. Anticaricatures can be created by reducing all the differences between a face and a norm. Caricatures of familiar faces were identified more quickly than veridical line drawings, which were identified more quickly than anticaricatures. There was no difference in identification accuracy for the three types of representation. The best likeness was considered to be a caricature. We discuss the implications of these results for how faces are mentally represented. The results are consistent with a holistic theory of encoding in which distinctive aspects of a face are represented by comparison with a norm. We suggest that this theory may be appropriate for classes of visual stimuli, other than faces, whose members share a configuration definable by a fixed set of points. 相似文献
135.
136.
The Coping Responses Inventory (CRI) was used to study coping among older problem and nonproblem drinkers. The CRI organizes coping efforts according to their focus (approach or avoidance) and method (cognitive or behavioral). Compared with nonproblem drinkers, older problem drinkers were more likely to use cognitive and behavioral avoidance responses to manage life stressors. Problem drinkers who experienced more negative life events and more severe stressors used both more approach and more avoidance coping. Those who had more financial and social resources relied more on approach and less on avoidance coping. Problem drinkers who relied more on avoidance coping tended to have more drinking problems and to report more depression and physical symptoms and less self-confidence. Positive reappraisal was associated with less depression and more self-confidence. 相似文献
137.
Saccade preparation inhibits reorienting to recently attended locations 总被引:21,自引:0,他引:21
R D Rafal P A Calabresi C W Brennan T K Sciolto 《Journal of experimental psychology. Human perception and performance》1989,15(4):673-685
We measured manual reaction time in normal human subjects to confirm that an eccentric visual signal has a biphasic effect on covert attention and eye movements. First, it summons attention and biases a saccade toward the signal; a subsequent inhibition of return then slows responses to signals at that location. A temporal hemifield dominance for inhibition of return was shown; this finding converges with observations in neurologic patients to suggest that it is mediated by midbrain pathways. Endogenous orienting of attention, from a central arrow cue, did not activate inhibition of return, whereas endogenous saccade preparation did so as effectively as an exogenous signal, even when no saccade was made. Inhibition of return is activated by midbrain oculomotor pathways and may function as a location "tagging" mechanism to optimize efficiency of visual search. 相似文献
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139.
In four experiments, rats were tested for short-term retention of a target spatial location either with or without prior exposures to alternate spatial locations in a T-maze. In all cases, exposure to alternate locations prior to exposure to the target location impaired retention of the target. This impairment increased as the number of exposures to the alternate location was increased, and the impairment decreased as the interval between alternate and target exposures was increased. In no case was the magnitude of the impairment found to increase as the retention interval was lengthened. 相似文献
140.
J Blascovich K Brennan J Tomaka R M Kelsey P Hughes M L Coad R Adlin 《Journal of personality and social psychology》1992,63(1):164-174
Relationships between affect intensity and basal, evoked, and perceived cardiac arousal were investigated in 3 experiments. Affect intensity was assessed using Larsen and Diener's (1987) Affect Intensity Measure (AIM). Cardiac arousal was evoked with exercise in the 1st study and with mental arithmetic in the 2nd and 3rd. Perceived cardiac arousal was measured under optimal conditions using a standard heartbeat discrimination procedure. Women as a group scored higher on the AIM. Affect intensity was unrelated to basal or evoked cardiac arousal and was negatively related to perceived cardiac arousal in all 3 studies. Data suggest that affect intensity, although unrelated to actual physiological arousal, is negatively related to the accuracy with which individuals perceive their own arousal. Results are discussed within the context of an expanded arousal-regulation model (Blascovich, 1990). 相似文献