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Deferred imitation of object-related actions and generalization of imitation to similar but not identical tasks was assessed
in three human-reared (enculturated) chimpanzees, ranging in age from 5 to 9 years. Each ape displayed high levels of deferred
imitation and only slightly lower levels of generalization of imitation. The youngest two chimpanzees were more apt to generalize
the model's actions when they had displayed portions of the target behaviors at baseline, consistent with the idea that learning
is more likely to occur when working within the "zone of proximal development." We argue that generalization of imitation
is the best evidence to date of imitative learning in chimpanzees.
Electronic Publication 相似文献
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This study examines how consuming alcohol differentially affects the communicative behavior and perceptions of high and low social self‐esteem (SSE) women as they engage in a brief interaction with a flirtatious male. Alcohol myopia theory proposes that alcohol affects behavior when it blocks a person's normal inhibitions about enacting a behavior. It was predicted that low SSE women would be more inhibited when talking to a flirtatious male than would high SSE women and, therefore administration of a social self‐esteem measure and random assignment to an alcoholic or nonalcoholic beverage condition, participants (N=50) talked with an attractive, flirtatious male confederate. Low SSE women were less anxious and self‐disclosed more when drinking than when sober, whereas high SSE women were not significantly affected by alcohol consumption. The discussion highlights the complex and often contradictory effects of alcohol consumption on social interaction. 相似文献
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Yunger JL Bjorklund DF 《Journal of comparative psychology (Washington, D.C. : 1983)》2004,118(2):242-246
Deferred imitation of object-related actions and generalization of imitation to similar but not identical tasks were assessed in two human-reared (enculturated) orangutans (Pongo pygmaeus). Each ape displayed low levels of deferred imitation but did not provide evidence of generalization of imitation. Results suggest that enculturated orangutans may not possess social-cognitive abilities similar to that which enculturated chimpanzees are assumed to possess. 相似文献
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Violent content video games such as Mortal Kombat and Doom have become very popular among children and adolescents, causing great concern for parents, teachers, and policy makers. This study cumulates findings across existing empirical research on the effects of violent video games to estimate overall effect size and discern important trends and moderating variables. Results suggest there is a smaller effect of violent video games on aggression than has been found with television violence on aggression. This effect is positively associated with type of game violence and negatively related to time spent playing the games. Directions for future programmatic research on video games are outlined. 相似文献
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This article has two purposes. The first is to present a brief (and speculative) account of the developmental origins of the several components of gender identity featured in the multidimensional model of gender identity proposed by Egan and Perry (2001). The second is to offer additional empirical support for the construct and discriminant validity of the various gender identity dimensions. Children (M age = 11.5 years) were assessed for 4 components of gender identity: (a) felt gender typicality, (b) contentment with gender assignment, (c) felt pressure for gender conformity, and (d) intergroup bias (the sentiment that one's own sex is superior). Gender typicality, gender contentedness, and felt pressure (but not intergroup bias) related to indexes of psychosocial adjustment in specific and theoretically meaningful ways. The case for a multidimensional approach to gender identity is strengthened. 相似文献
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This study examined influences of gender identity on change in preadolescents' adjustment over time. In each of two successive years, three measures of gender identity (felt gender typicality, contentment with gender assignment, and felt pressure for gender conformity) and four measures of adjustment (self-esteem, internalizing symptoms, externalizing symptoms, and acceptance by peers) were collected. Low gender typicality, low gender contentedness, and high felt pressure all foreshadowed deterioration on one or more indexes of adjustment. The combination of low gender typicality with high felt pressure was especially conducive to internalizing problems, underscoring the importance of the cognitive organization of the gender identity variables. The advantages of a multidimensional perspective on gender identity are discussed. 相似文献
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