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71.
Emotional responding to salient food cues and effects of food deprivation and consumption were investigated in 32 women with bulimia and 32 control women. One half of each group was food deprived before viewing unpleasant, neutral, pleasant, and food-related pictures. Then participants could eat from a buffet before viewing a parallel picture set. Women with bulimia showed a substantial potentiation of startle responses during viewing of food cues relative to control women. This startle potentiation was attenuated by food deprivation and augmented by increased food consumption. These data support the affective regulation model suggesting that food cues prompt negative affective states in women with bulimia, who are overwhelmed by fasting. The resulting deprivation increases the incentive value of food cues and may thus trigger binge eating. 相似文献
72.
A predominately European American sample of 197 middle-class college students rated married women and men with hyphenated surnames on the Big Five personality factors (R. Lippa, 1991), the Personal Attributes Questionnaire (J. T. Spence & R. L. Helmreich, 1978), the adjectives masculine and feminine, and 12 adjective phrases reflecting different aspects of marriage. Both men and women perceived women and men with hyphenated last names as different from other married people. In comparison with the average married woman, the woman with a hyphenated name was perceived as more friendly, good-natured, industrious, and intellectually curious. She was also perceived as well educated and as more likely to have a career. Men with hyphenated surnames were also perceived as accommodating and good-natured, and viewed as being both nurturing and committed to their marriage. Women and men with hyphenated names were generally perceived as having higher levels of both instrumental and expressive traits than other married people. Women appear to have more positive perceptions than men, particularly of the man with a hyphenated name. The results suggest that college students have generally positive perceptions of married people with hyphenated names. 相似文献
73.
High-density EEG was recorded in 12 compensated dyslexics, 6 classified as dysphonetic and 6 as dyseidetic, and in 12 matched controls while they carried out a lexical-decision task. Relative to normal controls, dysphonetics showed higher beta power in anterior relative to posterior regions, while dyseidetics showed higher beta power in posterior relative to anterior regions. Further, controls (but not dyslexics) showed a positive correlation between performance on the task and the ratios of both left-to-right and anterior-to-posterior beta asymmetry. According to the dual-route theory of reading, there are two strategies that can be used in lexical decision: A visual strategy involving visual word identification and direct access to a visual lexicon, and a phonological strategy involving grapheme-to-phoneme conversion and access to a speech output lexicon. Our results therefore suggest compensation through weakness rather than strength, with phonological dyslexics focusing on a grapheme-to-phoneme strategy and dyseidetics focusing on visual word identification. 相似文献
74.
To compare mental rotation and mental size transformation, 128-channel EEG was recorded while subjects performed both tasks using random two-dimensional shapes as stimuli. Behavioural results showed significant linear effects of both size transformation and mental rotation on reaction times. Rotation ERPs showed experimental effects at two latencies: a bilateral component distributed over posterior parietal electrodes at a latency of approximately 232-300ms and a second component at approximately 424-492ms distributed over right anterior parietal electrodes. The latency and spatial distribution of this second effect is consistent with previous research indicating a functional connection between this component and mental rotation. ERPs for the size-transformation task showed an effect at 180-228ms distributed bilaterally over occipital-temporal electrodes. These results are consistent with previous hemodynamic imaging studies that show involvement of parietal cortex in mental rotation and also the involvement of BA 19 in size-transformation tasks. However, the superior temporal resolution of the present data indicates that BA 19 activation may occur at a latency that is more likely related to apparent motion than to the size-transformation operation per se. 相似文献
75.
Twenty-three subjects rated the belongingness of pairs of conditionable (photographic slides) and unconditioned (e.g., shock, tone, human scream) stimuli. Forty new subjects were then classically conditioned, using rating-defined high (angry face/scream) and low (landscape/scream) belongingness pairs. Finger-pulse responses to the high-belongingness pairs showed superior acquisition and resistance to extinction. Another 40 subjects were conditioned to compound stimuli: a slide (either landscape or angry face) that was the same over trials, and a yellow or blue background that was the discriminant cue for the unconditioned stimulus (scream). When the angry face (the high-belongingness slide) was the invariant part of the compound, relatively poorer differential pulse-volume and skin-conductance conditioning was observed. Thus, depending on the task, a priori belongingness rendered stimuli selectively conditionable, either enhancing or inhibiting visceral response associations. 相似文献
76.
Charles R. Leith Harlyn D. Hamm Connie Duncanson Tanja Senical 《Behavior research methods》1988,20(2):188-190
A psychology department in a teaching university solved problems in the existing undergraduate laboratory courses by setting up a computer laboratory and developing its own software. The logistical support that allowed a small department to offer many laboratory experiences came in part from an undergraduate apprenticeship program, which is described. 相似文献
77.
Mark S. Hamm 《Behavioral sciences & the law》1989,7(1):107-125
Over the course of the past decade and a half, enormous energy and talent have been devoted to the issue of determinate sentencing. Yet today we know little about the values underlying this reform, and we know even less about the efficacy of determinate sentencing as a crime control policy. This article considers these issues in Indiana 10 years after the renovation of the state's Penal Code. Through a survey of state legislators, an examination of law, official statistics, and personal interview data, the analysis endeavors to understand the ideologies, pragmatics, and impacts of sentencing reform. It is suggested that the implementation of determinate sentencing represents a corruption of both good intentions (“conscience)” and policy objectives. Parenthetically, the article argues that the constructs known as the crime control model and the justice model both constitute a case of arid scholasticism. That is, sentencing reform can be more fully understood in terms of organizational “convenience”. 相似文献
78.
Age and the availability of inferences. 总被引:7,自引:0,他引:7
Age differences in inference availability and memory were investigated using a speeded decision procedure and cued recall. Younger and older adults read passages that directly suggested either a target inference or an incorrect, competing inference before finally supporting the target inference. At critical points in a passage, subjects judged whether each of a series of words, including either the target or competing inference, was consistent with their current interpretation. Although both groups agreed on the final target inference, younger and older adults showed different patterns of inference availability and revision. Older adults showed broader and more sustained activation of alternative interpretations and also showed lower levels of inference recall. These findings are interpretable by a framework that proposes age-related breakdowns in inhibitory mechanisms that control the contents of working memory (Hasher & Zacks, 1988). 相似文献
79.
Carlos Ventura-Bort Andreas Löw Julia Wendt Javier Moltó Rosario Poy Florin Dolcos Alfons O. Hamm Mathias Weymar 《Cognitive, affective & behavioral neuroscience》2016,16(2):234-247
There is abundant evidence in memory research that emotional stimuli are better remembered than neutral stimuli. However, effects of an emotionally charged context on memory for associated neutral elements is also important, particularly in trauma and stress-related disorders, where strong memories are often activated by neutral cues due to their emotional associations. In the present study, we used event-related potentials (ERPs) to investigate long-term recognition memory (1-week delay) for neutral objects that had been paired with emotionally arousing or neutral scenes during encoding. Context effects were clearly evident in the ERPs: An early frontal ERP old/new difference (300–500 ms) was enhanced for objects encoded in unpleasant compared to pleasant and neutral contexts; and a late central-parietal old/new difference (400–700 ms) was observed for objects paired with both pleasant and unpleasant contexts but not for items paired with neutral backgrounds. Interestingly, objects encoded in emotional contexts (and novel objects) also prompted an enhanced frontal early (180–220 ms) positivity compared to objects paired with neutral scenes indicating early perceptual significance. The present data suggest that emotional—particularly unpleasant—backgrounds strengthen memory for items encountered within these contexts and engage automatic and explicit recognition processes. These results could help in understanding binding mechanisms involved in the activation of trauma-related memories by neutral cues. 相似文献
80.