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631.
Dutke S 《Perception & psychophysics》2005,67(8):1404-1413
On the basis of attention allocation models of time estimation, the role of working memory in prospective duration reproduction is explored. In four experiments, adult participants performed a counting task (duration, 400 sec) that allowed coordinative and sequential demands on working memory to be varied. After completing the counting task, the participants reproduced the time that they had worked on this task It emerged that (1) increased coordinative demands on working memory (but not increased sequential demands) reduced the accuracy of prospective duration reproduction (Experiments 1 and 2), (2) presenting context information during the reproduction phase enhanced the accuracy of the reproduced duration (Experiment 3), and (3) individual differences in coordinative working memory capacity affected duration reproduction in the same direction as the experimental manipulation of coordinative task demands (Experiment 4). The results suggest that attention allocation models of time estimation may benefit from taking a more differentiated view of the types of attentional demands that affect temporal cognition. 相似文献
632.
We tested the ability of children 3-5 years of age to recognise biological motion displays. Children and adults were presented with moving point-light configurations depicting a walking person, four-legged animals (dogs), and a bird. Participants were able to reliably recognise displays with biological motion, but failed in the identification of a static (four consecutive frames taken from each sequence) version. The results indicate that, irrespective of the highly reduced and unusual structural information available in point-light displays, biological motion is sufficient for reliable recognition of human and non-human forms at an age as early as 3 years. Moreover, 5-year-olds exhibit the ceiling level of recognition. The findings are discussed in the context of the neuropsychological and brain mechanisms involved in biological motion perception. 相似文献
633.
The impact of mood on effort quantified as autonomic adjustments was investigated in an experiment. The authors induced positive versus negative moods with either 1 of 2 mood induction procedures (music vs. autobiographical recollection) that differed in the extent of required effort. Then participants performed an achievement task after demand appraisals were made. Results were as predicted. During the mood inductions, autonomic reactivity (systolic blood pressure [SBP], diastolic blood pressure, heart rate, skin conductance responses) was stronger in the relatively effortful recollection conditions than in the relatively effortless music conditions. Mood valence had no impact here. But in the context of task performance, the authors found (a) mood congruency effects on the demand appraisals that reflected subjectively higher demand in a negative than in a positive mood, and (b) stronger SBP reactivity in a negative mood compared with a positive mood. Furthermore, SBP reactivity during task performance was correlated with achievement. 相似文献
634.
635.
Friedman Whitney R. Krützen Michael King Stephanie L. Allen Simon J. Gerber Livia Wittwer Samuel Connor Richard C. 《Animal cognition》2023,26(5):1601-1612
Animal Cognition - The social intelligence hypothesis holds that complex social relationships are the major selective force underlying the evolution of large brain size and intelligence. Complex... 相似文献
636.
Sequential dependencies can provide valuable information about the processes supporting memory, particularly memory for serial order. Earlier analyses have suggested that anticipation errors—reporting items ahead of their correct position in the sequence—tend to be followed by recall of the displaced item, consistent with primacy gradient models of serial recall. However, a more recent analysis instead suggests that anticipation errors are followed by further anticipation errors, consistent with chaining models. We report analyses of 21 conditions from published serial recall data sets, in which we observed a systematic pattern whereby anticipations tended to be followed by the “filling in” of displaced items. We note that cases where a different pattern held tended to apply to recall of longer lists under serial learning conditions or to conditions where participants were free to skip over items. Although the different patterns that can be observed might imply a dissociation (e.g., between short- and long-term memory), we show that these different patterns are naturally predicted by Farrell’s (Psychological Review 119:223–271, 2012) model of short-term and episodic memory and relate to whether or not spontaneously formed groups of items can be skipped over during recall. 相似文献
637.
Tal Shafir Stephan F. Taylor Anthony P. Atkinson Scott A. Langenecker Jon-Kar Zubieta 《Brain and cognition》2013
According to Damasio’s somatic marker hypothesis, emotions are generated by conveying the current state of the body to the brain through interoceptive and proprioceptive afferent input. The resulting brain activation patterns represent unconscious emotions and correlate with subjective feelings. This proposition implies a corollary that the deliberate control of motor behavior could regulate feelings. We tested this possibility, hypothesizing that engaging in movements associated with a certain emotion would enhance that emotion and/or the corresponding valence. Furthermore, because motor imagery and observation are thought to activate the same mirror-neuron network engaged during motor execution, they might also activate the same emotional processing circuits, leading to similar emotional effects. Therefore, we measured the effects of motor execution, motor imagery and observation of whole-body dynamic expressions of emotions (happiness, sadness, fear) on affective state. All three tasks enhanced the corresponding affective state, indicating their potential to regulate emotions. 相似文献
638.
Information changes as it is passed from person to person, with this process of cultural transmission allowing the minds of individuals to shape the information that they transmit. We present mathematical models of cultural transmission which predict that the amount of information passed from person to person should affect the rate at which that information changes. We tested this prediction using a function‐learning task, in which people learn a functional relationship between two variables by observing the values of those variables. We varied the total number of observations and the number of those observations that take unique values. We found an effect of the number of observations, with functions transmitted using fewer observations changing form more quickly. We did not find an effect of the number of unique observations, suggesting that noise in perception or memory may have affected learning. 相似文献
639.
Han-Joo Lee Amy R. Goetz Jennifer E. Turkel Stephan G. Siwiec 《Anxiety, stress, and coping》2013,26(2):226-237
Background and Objectives: Current cognitive-behavioral theorists conceptualize hypochondriasis as excessive health anxiety (HA). Growing evidence suggests that elevated HA is associated with attentional bias (AB) toward potential health-threat information. Design: This study aimed to examine the effects of attention retraining among individuals with elevated HA, using the established attention modification programs (AMP) designed to train participants to disengage attention from ideographically chosen health-threat words. Methods: Thirty-six randomly assigned individuals with elevated HA completed eight twice-weekly sessions of the AMP (n = 18) or the attention control condition (ACC; n = 18). Results: Despite using the well-established AMP protocol widely used within the field of anxiety disorders, we did not find evidence for change in AB following training. Further, AMP did not outperform ACC in reducing HA and other relevant emotional symptoms. However, both AMP and ACC evidenced overall significant symptom reduction in most of the outcome measures, including overall HA, anxiety sensitivity, general depression and anxiety, and somatic complaints. Conclusions: Further research is needed to better understand the effects and mechanisms of AMP as a possible cognitive intervention for HA. 相似文献
640.
Stephan Palmié 《文化与宗教》2013,14(1):3-19
Examining some recent publications on Afro‐Cuban religions in the US, this essay argues that some of the evident shortcomings of the literature on this subject may hold important epistemological and methodological lessons for the anthropology of religion in general. These concern the pervasive lack of critical attention to the criteria by which formations of religious knowledge and practice are constituted as objects of study; a failure to acknowledge the historical interaction between theoretical models and public demand structures for authenticated cultural difference; the tendency to treat the relation between observer‐ and insider‐discourses as unproblematic and transparent; and a similarly widespread trend towards over‐systematising and homogenising internally heterogeneous and unbounded aggregates of knowledge and practice. What is suggested instead is an ethnographically informed and actor‐centred sociology of knowledge focussed on mutually articulated universes of meaning, and capable of transcending artificial conceptual boundaries between ‘the religious’ and the sphere of ‘everyday life’. 相似文献