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61.
Two experiments are presented addressing the issue of whether observing (visual priming) or producing (motor priming) a running activity during a very short period (30 s) facilitates the perception of the direction of a point-light runner embedded in a dense dynamical mask. Experiment 1 showed that perceptual judgements improved and response time increased in the visual priming compared to the neutral priming condition (video of a moving car) in which judgements were at random. Because this effect was observed for male participants only, we performed a second experiment with the aim of evaluating the role of gender congruency in the visual priming condition. Results confirmed the facilitation effect and demonstrated that this effect was strictly dependent on the gender congruency between the perceiver and the priming information. Moreover, we found that actually producing a motor activity similar to the one presented in the video sequence improved to the same extent participants’ judgement of the direction of the point-light runner, without any gender effect. As a whole, these findings argue in favour of common representation for the perception and the production of human movement and showed that the perception of biological motion can be improved by prior motor activity either performed or observed. However, the gender-dependent effect of visual priming suggested that motor repertoire differed in males and females. 相似文献
62.
63.
Christel Bidet-Ildei Manuel Gimenes Lucette Toussaint Sophie-Anne Beauprez Arnaud Badets 《Journal of Cognitive Psychology》2017,29(7):821-831
Studies have revealed a close relationship between action–word processing and the detection of point-light biological movements and that this effect can be modulated by the context of action-verb presentation. The goal of the present study was to further examine the extent to which motor representation activation plays a role in this relationship by testing the influence of painless/painful sentence understanding during a listening task. Participants judged the presence or absence of a point-light biological movement that was embedded in a scrambled mask after a congruent or incongruent action sentence was presented. The sentences varied according to the context of action-verb presentation (painful, painless). Perceptual judgments of human movements improved after a prior presentation of a congruent action sentence but only in the painless context. Thus, our findings show that pain included in a semantic context of sentence presentation can preclude the relationship between action–word understanding and point-light biological movement judgments. 相似文献
64.
This study examined the effects of marital conflict on Korean children’s psychological adjustment and appraisal of hypothetical
marital conflict situations. Children between the ages of 10 and 12 were divided into “high-conflict” (n = 58) and “low-conflict” (n = 58) groups based on their self-reported degree of perceived interparental conflict in the home environment. Hypothetical
marital conflict situations were provided in cartoon format, and were differentiated based conflict intensity (verbal versus
physical aggression) and content (child-related conflict versus non-child-related conflict). In general, children reported
greater negative affect and perceived threat to hypothetical conflict situations involving physical aggression compared to
situations involving verbal conflict. In child-related conflict situations, children reported more fear of being drawn in
and endorsed coping strategies that involved direct intervention. “High-conflict group” children evidenced stronger reactivity
in responding to marital conflict situations in general and endorsed indirect intervention strategies—a finding previously
not found in similar studies conducted with European-American children—indicating the possibility of cross-cultural difference
in coping preferences in interparental conflict situations. Furthermore, “high-conflict group” children manifested more indices
of maladjustment as indicated by externalizing and internalizing behavior problems, in addition to more self-reported depressive
symptoms. Results highlight the effects of marital conflict on children’s psychological adjustment and indicate the possibility
of cross-cultural differences in preferred coping mechanism in interparental conflict situations for Korean children. 相似文献
65.
Kendler KS Eaves LJ Loken EK Pedersen NL Middeldorp CM Reynolds C Boomsma D Lichtenstein P Silberg J Gardner CO 《Psychological science》2011,22(10):1343-1352
Symptoms of anxiety and depression are relatively stable over time. Can this stability be explained by genetic influences, or is it caused by the long-lasting effects of accumulating environmental experiences? To address this question, we analyzed longitudinally assessed symptoms of anxiety and depression in eight samples of monozygotic twins of widely varying ages. These samples were drawn from American and European population-based registries. Using hierarchical linear modeling, we examined individual differences and individual changes in the level of symptoms over time. This method enabled us to decompose the variance into the predictable variance shared by both members of each pair of twins, the differences between individuals within pairs, and the residual variance. We then modeled how these components of individual variation changed over time. Within pairs, the twins' predicted levels of symptoms increasingly diverged from childhood until late adulthood, at which point the divergence ceased. By middle adulthood, environmental experiences contributed substantially to stable and predictable interindividual differences in levels of anxiety and depression. 相似文献
66.
The present research focused on how patients with Parkinson’s disease (PD) produce handwriting sequences. PD patients who were on/off medication or deep brain stimulation treatments had to write lll and lln trigrams. We evaluated their ability to anticipate on-line the last letter in the trigram. The results revealed that in PD patients, contrary to healthy participants, the percentage of time taken by the down-stroke of the second l did not vary as a function of the spatial constraints of the following letter (l or n). In other words, the handwriting of the PD patients did not exhibit any sign of motor anticipation. However, under treatment, PD patients exhibited similar results to healthy participants despite no improvement in movement variability. Taken together these results do not seem consistent with the hypothesis that PD patients do not anticipate future movements because of their movement variability. They are more in agreement with theories that postulate that PD patients have a general deficit in the parallel processing of the components of a motor sequence. 相似文献
67.
Jagna Sobierajewicz Wojciech Jaśkowski Rob H. J. Van der Lubbe 《Journal of motor behavior》2019,51(4):451-465
Learning a fine sequential hand motor skill, like playing the piano or learning to type, improves not only due to physical practice, but also due to motor imagery. Previous studies revealed that transcranial direct current stimulation (tDCS) and motor imagery independently affect motor learning. In the present study, we investigated whether tDCS combined with motor imagery above the primary motor cortex influences sequence-specific learning. Four groups of participants were involved: an anodal, cathodal, sham stimulation, and a control group (without stimulation). A modified discrete sequence production (DSP) task was employed: the Go/NoGo DSP task. After a sequence of spatial cues, a response sequence had to be either executed, imagined, or withheld. This task allows to estimate both non-specific learning and sequence-specific learning effects by comparing the execution of unfamiliar sequences, familiar imagined, familiar withheld, and familiar executed sequences in a test phase. Results showed that the effects of anodal tDCS were already developing during the practice phase, while no effects of tDCS on sequence-specific learning were visible during the test phase. Results clearly showed that motor imagery itself influences sequence learning, but we also revealed that tDCS does not increase the influence of motor imagery on sequence learning. 相似文献
68.
Raija‐Leena Punamki Katri Kanninen Samir Qouta Eyad El‐Sarraj 《International journal of psychology》2002,37(5):286-296
Psychological defences are conceptualized as protective processes that help individuals to maintain their integrity in the face of threat and danger. Accordingly, their role in defending trauma victims from post‐traumatic symptoms was examined. The sample consisted of 128 Palestinian male political ex‐prisoners who had reported various degrees of torture and ill‐treatment. The first aim was to analyze the dimensionality and distribution of different defence mechanisms. The second was to examine which defences would moderate the association between the reported torture and ill‐treatment and the post‐traumatic symptoms (PTS). Third, the direct associations between reported torture and ill‐treatment and defences and between the defences and symptoms were explored. Defence mechanisms were assessed by a 40‐item version of the Defense Style Questionnaire (DSQ), and Post‐traumatic symptoms by the Harvard Trauma Questionnaire (HTQ), and experiences of torture and ill‐treatment by a scale developed for that purpose. The results show, first, that the men used predominantly mature defences such as anticipation, sublimation, suppression, and rationalization, but also relatively frequently somatization and dissociation, which are characteristic responses among trauma victims. Second, the principal component analysis revealed four defence dimensions, differentiated by the level of maturity and the approach to reality: the mature reality‐based, the consciousness‐limiting, the immature reality‐escaping, and the immature reality‐distorting defences. Third, against our hypothesis, the moderating analyses indicated that the reported torture and ill‐treatment were relatively more associated with vigilance, avoidance, and intrusion symptoms if men used consciousness‐limiting defences. Yet as expected, the mature reality‐based defences did not show a protective effect. Furthermore, a high level of reported torture and ill‐treatment was associated with a low level of the mature reality‐based defences, but not with a high level of immature defences. Last, similarly to earlier studies, the immature reality‐distorting and immature reality‐escaping defences associated directly with high, and mature reality‐based defences with low, levels of PTS‐symptoms. 相似文献
69.
Verleger R Jaśkowski P Aydemir A van der Lubbe RH Groen M 《Journal of experimental psychology. General》2004,133(4):494-515
In general, both consciously and unconsciously perceived stimuli facilitate responses to following similar stimuli. However, masked arrows delay responses to following arrows. This inverse priming has been ascribed to inhibition of premature motor activation, more recently even to special processing of nonconsciously perceived material. Here, inverse priming depended on particular masks, was insensitive to contextual requirements for increased inhibition, and was constant across response speeds. Putative signs of motor inhibition in the electroencephalogram may as well reflect activation of the opposite response. Consequently, rather than profiting from inhibition of primed responses, the alternative response is directly primed by perceptual interactions of primes and masks. Thus there is no need to assume separate pathways for nonconscious and conscious processing. 相似文献
70.
Traces left on visual selective attention by stimuli that are not consciously identified 总被引:3,自引:0,他引:3
Briefly presented information, even if unidentifiable, may speed or delay required responses to following events. It has been assumed that this priming of the motor system may occur without affecting attention to priming and following stimuli. In contrast to this notion, the present study reports that such unidentified stimuli have effects on a physiological indicator of the attentional system. A lateral posterior electroencephalogram component was evoked by laterally presented relevant shapes, reflecting shifts of attention to those shapes. This component was absent, however, when the relevant shape was preceded by a similar shape at the same location, even if this shape was completely masked by metacontrast. The attentional shift evidently became unnecessary in this situation. Thus, unidentifiable information may leave some trace for attention-controlled selection of the following event. 相似文献