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81.
We investigated the unimanual actions of a biological family group of twelve western lowland gorillas (Gorilla gorilla gorilla) using a methodological approach designed to assess behavior within social context from a bottom-up perspective. Measures
of both the lateralization of unimanual actions (left, right) and the target of the action (animate, inanimate) were assessed
during dual, synchronized video observations of naturalistic behavior. This paper demonstrates a corelationship between handedness
and the animate quality of the target object. Analyses demonstrated a significant interaction between lateralized unimanual
actions and target animacy and a right-hand bias for actions directed toward inanimate targets. We suggest that lateralized
motor preference reflects the different processing capabilities of the left and right hemispheres, as influenced by the emotive
(animate) and/or functional (inanimate) characteristics of the target, respectively. 相似文献
82.
An important question in person perception is how we acquire the perceptual/cognitive mechanisms that characterize adult expertise. Children's performance on face recognition tests improves dramatically between age 4 and adolescence suggesting that our face recognition system may change during childhood. Yet, the source of this improvement is controversial. In this review, we consider whether changes in the way identity is represented/coded in face space could contribute to this age-related improvement. Face aftereffects have been extensively applied to studying face coding in adults and more recently they have been applied to studying the mechanisms of face coding in children. Face aftereffects are temporary distortions of perception induced by exposure to faces and are thought to reflect the mechanisms underlying face perception. Face aftereffect techniques have revealed that children as young as 4 years of age show evidence of adult-like face space organization, with opponent coding of face dimensions. These findings are consistent with an emerging picture that the key mechanisms of face perception are present early in childhood. 相似文献
83.
Previous research indicates that pairing pictures with associated words when teaching sight-word reading may hinder acquisition (e.g., Didden, Prinsen, & Sigafoos, 2000; Singh & Solman, 1990; Solman & Singh, 1992). The purpose of the current study was to determine whether this phenomenon was due to a previously learned association between the spoken word and picture (i.e., blocking) or due to the mere presence of a picture as an extrastimulus prompt (i.e., overshadowing). Three participants were taught to recognize words that were presented alone or paired with pictures that the participants either could or could not identify prior to training. All participants learned the words more quickly when they were presented alone rather than with pictures, regardless of their prior learning history with respect to pictures representing the words. This finding is consistent with the phenomenon of overshadowing. Nonetheless, consistent with blocking, all participants also acquired the words presented alone more quickly if they could not identify the associated pictures prior to training. Together, these findings have important implications for using prompts when teaching skills to individuals with developmental disabilities. 相似文献
84.
R. G. Harper J. Wager R. C. Chacko 《Journal of clinical psychology in medical settings》2010,17(1):71-76
This exploratory study attempted to identify characteristics of patients selected for transplant compared to those who had not demonstrated 6 months alcohol, drug and tobacco abstinence at the time of candidacy assessment. In a consecutive sample of 112 patients referred for liver transplant, almost half failed this criteria. Comparisons on psychometric measures of coping, social support, and health status revealed noncompliant patients to be significantly less authority abiding, less concerned about their illness, and less spiritually-oriented. Persisting alcohol use was paradoxically associated with greater psychosocial support whereas depression was related to smoking. Prior drug use was associated with more cognitive symptom complaints, emotional constriction, a vulnerability to feel dejection and a proneness to abuse medications These findings were discussed as a possible opportunity to identify and address characteristics of transplant candidates to reduce their risk of perpetuating noncompliance while competing for a life saving intervention. 相似文献
85.
When identifying two targets presented in a rapid serial visual presentation stream, one’s accuracy on the second target is reduced if it is presented shortly (within 500 msec) after the first target—an attentional blink (AB). Individuals differ greatly in the size of their AB. One way to learn about the AB is to understand what underlies these individual differences. Recent studies have suggested that when a broadened or diffused attentional state is induced, the AB deficit can be attenuated. The present study examined whether natural (dispositional) individual differences in focus and diffusion of attention as assessed by the global/local task could predict performance on the AB task. Performance that was consistent with diffusion correlated negatively with AB size, and performance that was consistent with focusing correlated positively with AB size, showing that dispositional focus and diffusion of attention can predict individual differences in the AB. These findings are consistent with the Olivers and Nieuwenhuis (2006) overinvestment hypothesis. 相似文献
86.
Abnormal smooth pursuit eye-tracking is one of the most replicated deficits in the psychophysiological literature in schizophrenia [Levy, D. L., Holzman, P. S., Matthysse, S., &; Mendell, N. R. (1993). Eye tracking dysfunction and schizophrenia: A critical perspective. Schizophrenia Bulletin, 19, 461–505]. We used meta-analytic procedures to quantify patient-control differences in eye-tracking and to evaluate potential moderators of effect size including patient and target characteristics and characteristics of the control population (matched or not). The magnitude of patient-control differences in pursuit depended on the measure. Global measures had large effect sizes. Among specific measures, maintenance gain and leading saccades yielded large effect sizes, with gain also yielding the narrowest confidence interval. Effect sizes associated with specific measures of smooth pursuit vs. specific measures of intrusive saccades did not clearly implicate one system over the other. Patient demographics and target characteristics generally had little influence on effect sizes. However, studies that failed to sex-match patients and controls tended to have smaller effect sizes for maintenance gain and catch-up saccade rate. Average effect sizes and confidence limits for global measures of pursuit and for maintenance gain place these measures alongside the very strongest neurocognitive measures in the literature [Heinrichs, R. W. (2004). Meta-analysis, and the science of schizophrenia: Variant evidence or evidence of variants? Neuroscience and Biobehavioral Reviews, 28, 379–394] for distinguishing between patients with schizophrenia and controls. 相似文献
87.
Objectification theory (Fredrickson and Roberts, Psychology of Women Quarterly, 21, 173–206, 1997) contends that experiences of sexual objectification socialize women to engage in self-objectification. The present study used an experimental design to examine the effects of media images on self-objectification. A total of 90 Australian undergraduate women aged 18 to 35 were randomly allocated to view magazine advertisements featuring a thin woman, advertisements featuring a thin woman with at least one attractive man, or advertisements in which no people were featured. Participants who viewed advertisements featuring a thin-idealized woman reported greater state self-objectification, weight-related appearance anxiety, negative mood, and body dissatisfaction than participants who viewed product control advertisements. The results demonstrate that self-objectification can be stimulated in women without explicitly focusing attention on their own bodies. 相似文献
88.
Niro Sivanathan Daniel C. Molden Adam D. Galinsky Gillian Ku 《Organizational behavior and human decision processes》2008
Drawing on the motivated cognition literature, we examine how self-affirmation processes influence self-justification needs and escalation decisions. Study 1 found that individuals with a larger pool of affirmational resources (high self-esteem) reduced their escalation compared to those with fewer affirmational resources (low self-esteem). Study 2 extended these findings by demonstrating that individuals also de-escalated their commitments when they were provided an opportunity to affirm on an important value. Finally, Study 3 found that affirming on traits that were of low relevance (e.g., creativity) to an initial decision reduced escalation, but affirming on decision-relevant traits (e.g., decision-making ability) ironically increased escalation. Across three studies, using three instantiations of self-affirmations and two measures of escalation, the results highlight the potential benefits and costs of using self-affirmation as a vehicle to de-escalate commitment. 相似文献
89.
Journal of Philosophical Logic - This paper proves a precisification of Hume’s Law—the thesis that one cannot get an ought from an is—as an instance of a more general theorem... 相似文献
90.
Wilkins AJ Smith J Willison CK Beare T Boyd A Hardy G Mell L Peach C Harper S 《Perception》2007,36(12):1788-1803
In a series of eight studies it is shown that the first peak in the horizontal autocorrelation of the image of a word (which captures the similarity in shape between the neighbouring strokes of letters) determines (i) the appearance of the words as striped; (ii) the speed with which the words are read, both aloud and silently; and (iii) the speed with which a paragraph of text can be searched. By subtly distorting the horizontal dimension of text, and thereby reducing the first peak in the horizontal autocorrelation, it is shown that the speed of word recognition can be increased. The increase in speed is greater in poor readers. 相似文献