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1.
A wide variety of organisms produce actions and signals in particular temporal sequences, including the motor actions recruited during tool-mediated foraging, the arrangement of notes in the songs of birds, whales and gibbons, and the patterning of words in human speech. To accurately reproduce such events, the elements that comprise such sequences must be memorized. Both memory and artificial language learning studies have revealed at least two mechanisms for memorizing sequences, one tracking co-occurrence statistics among items in sequences (i.e., transitional probabilities) and the other one tracking the positions of items in sequences, in particular those of items in sequence-edges. The latter mechanism seems to dominate the encoding of sequences after limited exposure, and to be recruited by a wide array of grammatical phenomena. To assess whether humans differ from other species in their reliance on one mechanism over the other after limited exposure, we presented chimpanzees (Pan troglodytes) and human adults with brief exposure to six items, auditory sequences. Each sequence consisted of three distinct sound types (X, A, B), arranged according to two simple temporal rules: the A item always preceded the B item, and the sequence-edges were always occupied by the X item. In line with previous results with human adults, both species primarily encoded positional information from the sequences; that is, they kept track of the items that occurred in the sequence-edges. In contrast, the sensitivity to co-occurrence statistics was much weaker. Our results suggest that a mechanism to spontaneously encode positional information from sequences is present in both chimpanzees and humans and may represent the default in the absence of training and with brief exposure. As many grammatical regularities exhibit properties of this mechanism, it may be recruited by language and constrain the form that certain grammatical regularities take.  相似文献   

2.
Tool-using tasks that require subjects to overcome the obstacles to get a reward have been a major component of research investigating causal knowledge in primates. Much of the debate in this research has focused on whether subjects simply use certain stimulus features or instead use more functionally relevant information regarding the effect that certain features may have on a moving reward. Here, we presented two obstacle tasks, a trap platform and a barrier platform, to 22 great apes. Although perceptually similar, these two tasks contain two perceptually different but functionally equivalent obstacles: a trap and a barrier. In a pre-exposure phase, subjects either experienced an obstacle task or a task without any obstacle. In the transfer phase, all subjects were presented with an obstacle task, either the trap platform or the barrier platform. Our results show that those subjects who received an obstacle task prior to the second task performed better than those who first received a non-obstacle task. The type of obstacle task that subjects received first did not have any effect on their performance in the transfer phase. We suggest that apes possess some knowledge about the effects that obstacles have on slow-moving unsupported objects.  相似文献   

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4.
Previous research suggests that sociosexual orientation and relationship status each predict women’s preferences for masculine men. However, if partnered women’s preferences primarily reflect the short-term (i.e., currently unfulfilled) aspect of a pluralistic mating strategy and unpartnered women’s preferences reflect the dominant aspect of their current mating strategy, then sociosexual orientation should predict the preferences of unpartnered women better than those of partnered women. Perceptions of other women’s attractiveness may show a similar pattern of individual differences, if such perceptions of other women’s attractiveness are important for intra-sexual competitive behavior. Consistent with these predictions, in the current study, analyses of the relationship between women’s face preferences and sociosexual orientation indicated that unpartnered women reporting greater willingness to engage in uncommitted relationships demonstrated stronger preferences for exaggerated sex-typical characteristics in men’s and women’s faces. For partnered women, no corresponding relationship between sociosexual orientation and face preferences was evident. Collectively, these findings suggest that individual differences in sociosexual orientation may be better predictors of face preferences among unpartnered women than among women whose long-term relationship goals are currently being met.  相似文献   

5.
This study analyzes the relation between dissocial behaviors and substances consumption in adolescents, and tests the moderating role of social risk factors from family and peers in this relation. 1,239 adolescents of Secondary school, 612 boys and 627 girls, from 11-18 (M = 14.39; SD = 1.43) from state and private schools completed an adapted questionnaire from the State survey on risk activities for health in adolescents (ESTUDES) and the FRIDA questionnaire about social risk factors. We found that disocial behaviors and consumption are common and are closely related. MHMR analysis confirm the moderate role of two risk family factors (indifference family reaction against drugs consumption and a permissive and tolerant parental educative style) besides tolerant attitude towards consumption on friends and easily access to drugs. That moderation is higher for girls than for boys. The results of this work highlight the influence of family and friends’ factors between dissocial behaviors and drug consumption and contribute to the knowledge of an operational model for the development of preventing programs.  相似文献   

6.
In the present study, we compared the effects of two processing modes on the updating of the location and orientation of a previously viewed object in space during a guided walk without vision. In Experiment 1, in order to measure the error for initial perception of object’s orientation, 12 subjects rotated a miniature model until it matched the memorized orientation of its counterpart object in space. In Experiment 2, they attempted either to keep track of the object continuously (in the object-centered [OC] task) or to estimate the object’s perspective only at the terminal vantage point given the trajectory they walked (in the trajectory-centered [TC] task). Subjects indicated the location of the object by facing it, and then rotated the model in order to indicate its orientation from the new vantage point. Results showed that, with respect to the TC mode, the OC mode induced a slowdown of the subjects’ self-paced locomotion velocity for both linear and angular movements, and a decrease of the latencies as well as smaller absolute errors for the orientation-of-the-object response. Mean signed errors on object’s orientation were equivalent for both processing modes, suggesting that the latter induced different allocations of processing resources on a common representation of space updated by “path integration.”  相似文献   

7.
Motivation and Emotion - In college, students often encounter situations in which they struggle to meet their academic goals in difficult courses. We integrate the Motivational Theory of Life-Span...  相似文献   

8.
The study examined pedestrians’ self-reported road-crossing behavior in relation to beliefs regarding the consequences of the behavior incorporated in the health belief model, instrumental and normative motives for compliance with safety rules, and situational factors. A questionnaire was administered to 205 students at two Israeli higher education institutions. The results show that crossing against a `Don’t walk' sign is predicted by perceived consequences of the behavior, as well as by normative motives. The results revealed consistent gender differences: women’s perception of their susceptibility to an accident resulting from an unsafe crossing is higher than that of men; women also report more than men that they are motivated by normative and instrumental considerations. Nevertheless, for women unsafe crossing is predicted only by instrumental motives, whereas for men both normative and instrumental motives predict unsafe crossing behavior. Among the situational variables, the presence of other pedestrians is related to the self-reported crossing behavior of women, whereas traffic volume is related to that of men. The results are discussed with regard to similarities and differences between pedestrians and drivers in compliance with safety laws.  相似文献   

9.
In this study, we examined how injunctive cultural norms concerning body image are perceived by women, assessed the degree of body shame that occurs when an individual sees herself as differing from the cultural standard, and measured the extent to which the internalization of this standard as a personal ideal may influence the experience of body-related shame. Female college students (N = 687) completed measures of body shame and two types of body image self-discrepancy—actual:own ideal (AI) and actual:societal ought (ASO). Self-discrepancies were determined by subtracting participants' ideal and ought estimates from their actual body shape perception. AI was found to mediate the relationship between ASO and shame, which suggests that the internalization of body ideals may be an important antecedent to emotional consequences from cultural norms.  相似文献   

10.
Yao  Liangshuang  Niu  Gengfeng  Sun  Xiaojun 《Sex roles》2021,84(7-8):465-476

Body image comparisons on social networking sites (SNS) have been found to be associated with disordered eating among western young women, however, the inner mechanism driving this association is largely unknown. Based on social comparison, sociocultural, and objectification theories, the present study aimed to investigate the association between body image comparisons on SNS and restrained eating, as well as the mediating role of body shame and the moderating roles of body appreciation and body mass index (BMI) among Chinese young adult women. A sample of 567 Chinese college women were recruited to complete a questionnaire assessing body image comparisons on SNS, body shame, body appreciation, restrained eating, and information about weight and height. Results showed that body image comparisons on SNS were positively associated with restrained eating and that body shame significantly mediated this association. Furthermore, body appreciation and BMI each moderated the association between body shame and restrained eating as well as the association between body image comparisons on SNS and restrained eating. These results not only have theoretical implications, but also provide guidance for prevention interventions targeting negative body image and disordered eating among college women.

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11.
Using simulation investigation for empirical network analyses (in RSiena) we examined how personality and sexual behavior and intention were related to peer processes in Dutch adolescents. Our main research questions were: (a) do adolescents cluster together in friendship networks based on personality, sexual behavior, and/or sexual intention? And (b), do adolescents influence each other in their sexual behavior and intention? Results showed that adolescents clustered together based on dissimilarity in agreeableness, and similarity in gender and sexual intention. Further, we found that adolescents with lower levels of emotional stability had friends with more similar levels of sexual intention. The limited variance and low base rates of sexual behavior and intention did not allow us to explicitly test socialization effects.  相似文献   

12.
Gioia  Francesca  Griffiths  Mark D.  Boursier  Valentina 《Sex roles》2020,83(11-12):773-785

Adolescents’ social networking site (SNS) use has dramatically grown in the past few years and has increasingly become focused on pictures and visual self-presentation. Attention directed toward online physical appearance appears to trigger some body-related behaviors (e.g., body image monitoring) which potentially are related to self-objectification and problematic SNS use. Indeed, the use of social media platforms (including the active creation of content and peer interactions) provides a highly accessible medium for socializing with self-objectification. The present study evaluated the previously unexplored predictive role of body shame on SNS use, testing the mediating effect of body image control in photos on SNS. A total of 693 Italian adolescents (45% male; Mage?=?16 years, range?=?13–19 years) participated in the study. Results only partially confirmed the direct effect of body shame on problematic SNS use. However, body shame strongly predicted body image control in SNS photos, leading indirectly to both male and female adolescents’ problematic social media use. The study demonstrated novel findings in the field of self-objectification research and contributes toward the ongoing debate on possible predictors of problematic SNS use.

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13.
Psychotherapists’ mental health has been traditionally associated with the harmful consequences of clinical practice. In contrast to this dominant model, a growing body of research in positive psychology has sparked an interest in therapists’ positive well-being. The main objective of this study was to examine the relations between therapists’ epistemic orientation modes, emotion regulation strategies and psychological well-being (PWB). This was a cross-sectional study in which participants were 674 therapists (78.5% women), with a mean age of 42.02 years (SD = 13.06). Therapists completed an online questionnaire containing self-report measures of all study variables. Structural equation modelling using latent variables was performed to test the study hypotheses. Results revealed no significant direct effects of epistemic orientation on PWB. Up- and downregulation strategies had the most substantial direct effects on total PWB. Furthermore, emotion regulation mediated the association between therapists’ epistemic orientation modes and PWB, accounting for 57% of the variance in the outcome variable. Implications for training, practice and therapist self-care are discussed.  相似文献   

14.
1 1. A version of this paper was given at the Institute of Psychoanalysis Conference: ‘Mourning and Melancholia through the Life Cycle’, London, 1998. This paper is a re-reading of Freud’s classic paper. The themes of mourning and melancholia are viewed in relation to children and adolescents with illustrations from case histories. Mourning is interpreted in a broader sense: not only as grief (both expectable and traumatic) but as a response to the developmental process itself as phases of childhood are shed and an emerging newer identity is assumed. The author argues that Freud’s paper left the way open to make a number of further distinctions of the processes involved within melancholia.  相似文献   

15.
Sixty-eight percent of U.S. adults are overweight/obese, and this epidemic has physical, psychosocial, and behavioral consequences. An internet sample of adults (N = 2997) perceiving themselves as larger than ideal in clothing size reported their body mass index (BMI), relative clothing size (RS; discrepancy between current and ideal size), and avoidance behaviors. Exploratory factor analysis of 10 avoidance items produced social avoidance and body display avoidance factors. A relative importance analysis revealed RS as a better predictor than BMI for avoidance. A hierarchical multivariate analysis of covariance found RS to predict both avoidance constructs. The relationship between RS and both avoidance constructs was stronger for women than men, and for younger as compared to older participants. Caucasians reported more body display avoidance than African Americans. This suggests that personal dissatisfaction with body size may deter involvement in varied life events and that women are especially avoidant of activities that entail displaying their bodies.  相似文献   

16.
The current research investigated the organization of children’s face space by examining whether 5- and 8-year-olds show race-contingent aftereffects. Participants read a storybook in which Caucasian and Chinese children’s faces were distorted in opposite directions. Before and after adaptation, participants judged the normality/attractiveness of expanded, compressed, and undistorted Caucasian and Chinese faces. The method was validated with adults and then refined to test 8- and 5-year-olds. The 5-year-olds were also tested in a simple aftereffects paradigm. The current research provides the first evidence for simple attractiveness aftereffects in 5-year-olds and for race-contingent aftereffects in both 5- and 8-year-olds. Evidence that adults and 5-year-olds may possess only a weak prototype for Chinese children’s faces suggests that Caucasian adults’ prototype for Chinese adult faces does not generalize to child faces and that children’s face space undergoes a period of increasing differentiation between 5 and 8 years of age.  相似文献   

17.
Employing a United States sample of 5,810 Yahoo heterosexual internet dating profiles, this study finds race–ethnicity and gender influence body type preferences for dates, with men and whites significantly more likely than women and non-whites to have such preferences. White males are more likely than non-white men to prefer to date thin and toned women, while African-American and Latino men are significantly more likely than white men to prefer female dates with thick or large bodies. Compatible with previous research showing non-whites have greater body satisfaction and are less influenced by mainstream media than whites, our findings suggest Latinos and African Americans negotiate dominant white idealizations of thin female bodies with their own cultures’ greater acceptance of larger body types.  相似文献   

18.
Body image in children and adolescents: where do we go from here?   总被引:5,自引:5,他引:5  
Smolak L 《Body image》2004,1(1):15-28
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19.
The paper notes (1) that “thinking Gibsonian” is to be torn between two loves: cognition and reality, (2) that just because of this the cognitive scientist may beneficiently and more thoroughly rediscover that they are only two faces of his one true love: Meaning. This issue is elaborated as “the problem of intentionality” and culminates in the conclusion that Gibson's direct ecological approach to visual perception is not a theory about the constitution of perceptual meaning, which is the domain of the indirect cognitive approach. Therefore the constant Gibsonian attacks on indirect theories might be both misled and misleading. The second half of the paper begins with noting that this may be due to a confounding of the “direct” level of explanation of the perceiver with the “indirect” levels of phenomenologist and visual scientist. Next the scientist's process notions of direct and indirect theories are discussed with respect to single-glance face recognition. Within this second half of the paper about 20 different meanings of “direct” or “immediate” are presented (printed in italics). Most of these are generally acceptable and should, thus, not be invoked in support of entirely different notions, which are very problematic because these seem to eliminate the concept of mind-as-cognitive-process.  相似文献   

20.
Using constructs from theories of social identity and collective action, hypotheses were developed concerning variables that predict pro-feminist orientation among those who resist the feminist label, as compared to variables that predict willingness to identify as a feminist. Predictors that were expected to be important to the latter, but not the former group, included (1) positive evaluation of feminists, (2) belief in collective action, (3) recognition of discrimination, and (4) previous exposure to feminist thought. The sample consisted of 47 male and 94 female college students (60% Anglo, 16% Asian-American, 7% African-American, 9% Hispanic, and 7% “Other”), aged 17–50 years. Using separate multiple regressions, support for the differential inclusion of all but the third variable was found. Also as predicted, the genders did not differ in pro-feminist orientation, although college women were more willing than college men to identify as feminist. Results are discussed as potentially important to understanding willingness to engage in collective advocacy.  相似文献   

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