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101.
A partly occluded visual object is perceptually filled in behind the occluding surface, a process known as amodal completion or visual interpolation. Previous research focused on the image-based properties that lead to amodal completion. In the present experiments, we examined the role of a higher-level visual process-visual short-term memory (VSTM)-in amodal completion. We measured the degree of amodal completion by asking participants to perform an object-based attention task on occluded objects while maintaining either zero or four items in visual working memory. When no items were stored in VSTM, participants completed the occluded objects; when four items were stored in VSTM, amodal completion was halted (Experiment 1). These results were not caused by the influence of VSTM on object-based attention per se (Experiment 2) or by the specific location of to-be-remembered items (Experiment 3). Items held in VSTM interfere with amodal completion, which suggests that amodal completion may not be an informationally encapsulated process, but rather can be affected by high-level visual processes. 相似文献
102.
Posttraumatic stress and depressive symptoms in a college population one year after the September 11 attacks: the effect of proximity 总被引:5,自引:0,他引:5
As a follow-up to our earlier report [Behav. Res. Ther., in press] on the level of posttraumatic stress symptoms (PTSS), depressive symptoms, and frequency of diagnoses of probable posttraumatic stress disorder (PTSD) among college students at three public universities (Albany, NY, Augusta, GA, and Fargo, ND) resulting from the September 11, 2001. Terrorist attacks, we surveyed comparable groups of students (total, n = 1313) from these three institutions in the weeks following the first anniversary (2002) of the attacks. We found proximity effects (Albany higher than Augusta which was higher than Fargo) for PTSS and depressive symptoms but not for frequency of diagnoses of probable PTSD. Within the Albany site data, proximity of county of residence to New York City (NYC) also showed a proximity effect on PTSS. Although depressive symptoms were significantly different in 2002 versus 2001, the arithmetic differences in PTSS or in frequency of diagnoses of probable PTSD were not significant. The September 11 attacks continued to exert a psychic toll on college students even a year later. 相似文献
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104.
D C Blanchard R J Blanchard E M Lee S Nakamura 《Journal of comparative psychology (Washington, D.C. : 1983)》1979,93(2):378-390
Rats with anterior septal lesions showed a pattern of consistent enhancement of defensive behaviors normally elicited by threatening conspecifics, with no enhancement of attack or general reactivity. Further division of this group indicated that damage to sites anterior and ventral to the septal area, sites previously implicated in the "septal syndrome," produces maximal effect on these behaviors. When amygdala lesions are combined with septal damage this enhanced defensive responding is almost completely eliminated. These results were interpreted as indicating that the septal syndrome represents hyperdefensiveness to conspecific threat stimuli rather than aggression or increased general reactivity, and that amygdaloid mechanisms are also involved in the regulation of conspecific defensive behaviors. 相似文献
105.
Les trois expériences présentées ont pour objectif de tester l'effet de divers contextes sur l'accès initial aux propriétés dominantes et secondaires de concepts de catégories naturelles. Les résultats indiquent l'existence d'un effet facilitateur du contexte, pour peu qu'il soit suffisamment contraignant du point de vue de la richesse sémantique, et ceci dans des temps qui garantissent l'implication de processus automatiques. Cette dernière interprétation est par ailleurs confirmée par l'absence constante d'inhibition. La dernière expérience infirme de plus l'hypothèse d'une facilitation intralexicale entre contexte et cible et confirme que c'est bien la construction sémantique élaborée par le sujet qui facilite l'accès à certaines propriétés spécifiquement pertinentes des concepts-amorces. 相似文献
106.
P R Solomon S Blanchard E Levine E Velazquez M Groccia-Ellison 《Psychology and aging》1991,6(1):36-42
Young (17-22 years) and older (61-86 years) persons underwent classical conditioning of the eye-blink response to a tone conditioned stimulus (CS) and an airpuff unconditioned stimulus (UCS) at 1 of 3 interstimulus intervals (ISIs; 400, 650, and 900 ms). As in a previous study, older subjects conditioned more slowly and emitted fewer conditioned responses at the optimal 400-ms ISI. At longer ISIs, however, this age-related disruption of classical conditioning was attenuated. These differences in conditioning were not due to nonassociative factors, such as sensitivity to the tone CS or airpuff UCS or to differences in spontaneous blink rate, nor were they due to differences in general cognitive abilities. The results are discussed in terms of the role of temporal relationships between stimuli in conditioning across the life span. 相似文献
107.
Emotional intelligence has become a fashionable topic in the popular press, and has been heralded as an effective predictor of successful performance. However, little empirical evidence has borne out these claims. The present study was conducted in order to determine the relationship of emotional intelligence, cognitive ability, and personality with academic achievement. Emotional intelligence was assessed using the EQ-i (total EQ-i score and five EQ-i composite factor scores). Both cognitive ability and personality (in terms of extraversion and self control) were significantly associated with academic achievement. None of the EQ-i factor scores, nor the total EQ-i score, was significantly related to academic achievement. 相似文献
108.
Moral dilemmas and moral rules 总被引:1,自引:0,他引:1
Recent work shows an important asymmetry in lay intuitions about moral dilemmas. Most people think it is permissible to divert a train so that it will kill one innocent person instead of five, but most people think that it is not permissible to push a stranger in front of a train to save five innocents. We argue that recent emotion-based explanations of this asymmetry have neglected the contribution that rules make to reasoning about moral dilemmas. In two experiments, we find that participants show a parallel asymmetry about versions of the dilemmas that have minimized emotional force. In a third experiment, we find that people distinguish between whether an action violates a moral rule and whether it is, all things considered, wrong. We propose that judgments of whether an action is wrong, all things considered, implicate a complex set of psychological processes, including representations of rules, emotional responses, and assessments of costs and benefits. 相似文献
109.
110.