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491.
ULF DIMBERG 《Scandinavian journal of psychology》1990,31(1):70-75
This study examined whether facial electromyographic (EMG) reactions differentiate between identical tone stimuli which subjects perceive as differently unpleasant. Subjects were repeatedly exposed to a 1000 Hz 75 dB tone stimulus while their facial EMG from the corrugator and zygomatic muscle regions were measured. Skin conductance and heart rate responses were also measured. The subjects rated the unpleasantness of the stimulus and based on these ratings they were divided into two groups, High and Low in perceived unpleasantness. As predicted the facial EMG activity reflected the perceived unpleasantness. That is, the High group but not the Low group reacted with an increased corrugator response. The autonomic data, on the other hand, did not differ between groups. The results are consistent with the proposition that the facial muscles function as a readout system for emotional reactions and that facial muscle activity is intimately related to the experiential level of the emotional response system. 相似文献
492.
Jorge Da Gloria Danile Duda Farzaneh Pahlavan Philippe Bonnet 《Aggressive behavior》1989,15(4):265-271
The effect of presenting images of firearms on the speed of clenching of the fist of human subjects simultaneously receiving an aversive stimulation was studied. It was thought that, whereas the classic interpersonal experimental situation confounds the effects of the stimulus presented and several interpersonal processes, speed of fist clenching in a noninterpersonal setting could constitute a valid measure of the subject's readiness to fight. Twenty-four male and 24 female students (ages > 20 and <36 years) were instructed to press with their right hand a device commanding the projection of slides upon reception of an acoustic signal. Speed of clenching of the hand was recorded in the four conditions generated by the combination of two levels of acoustic signal (aversive and nonaversive) and two modalities of slides (firearms or tools). The results show that the reception of aversive sound accelerates fist clenching. Simultaneous presentation of slides of firearms and reception of aversive noise increases the speed of clenching of the fist. The slides' main effect was not significant. More irritable subjects tend to execute this movement faster than their less irritable counterparts, and more emotionally susceptible subjects tend to be slower than less susceptible ones. Male subjects were faster than females. This pattern of results is discussed in relation to the hypothesis formulated by the authors. 相似文献
493.
Alexander Moraru Daniel Memmert John van der Kamp 《Journal of Cognitive Psychology》2016,28(7):856-867
We evaluated the dual-pathway model to creativity in a motor context. The model describes separate flexibility and persistence pathways that are affected differently by breadth of attention and working memory. Motor creativity was tested using a divergent doing task. In Experiment 1 participants performed the divergent doing task after attention was broadened, narrowed or not manipulated. In Experiment 2, the divergent doing task was performed with a low or high working memory load. We found that a broad attention increased flexibility but not persistence. Also originality was unaffected. Taxing working memory did not affect persistence, flexibility or originality. The results provide partial support for the dual-pathway model in motor creativity. Discusion focusses on increased demands for the appropriatness of a solution in divergent doing relative to divergent thinking and to degree to which this implies a more general shortcoming of the dual-pathway model. 相似文献
494.
Katherine Lorenz 《Journal of aggression, maltreatment & trauma》2016,25(10):1058-1078
This exploratory study examined demographic, assault, and disclosure factors as predictors of survivors’ decisions to disclose preassault alcohol use and social reactions to their preassault alcohol use. Of survivors drinking prior to assault, those with more education and greater alcohol impairment or resistance during assault were more likely to disclose preassault drinking. Of women disclosing preassault drinking, those with more education and more violent assaults received more negative social reactions specific to their preassault drinking. Such negative reactions were more common for those telling parents, police, or medical professionals. Women with less education received more positive and negative social reactions specific to their preassault drinking. Disclosing preassault drinking in greater detail was related to positive social reactions specific to preassault drinking and greater alcohol impairment during assault was associated with both positive and negative social reactions specific to preassault drinking. Implications for research and intervention are provided for survivors disclosing alcohol-related sexual assaults. 相似文献
495.
Geert Savelsbergh Claes Von Hofstein Bert Jonsson 《Scandinavian journal of psychology》1997,38(4):325-333
In 9-month-old-infants adjustments in the reaching pattern to sudden changes in object location were examined. An attractive ball was presented to the infants at their midline and on some trials (perturbation trials) the ball suddenly changed position 15 cm to the right or left during the reach. For the perturbed trials the movement times approximately doubled compared to the control trials and significantly fewer balls were grasped. The results indicate that infants need to finish the first movement before being able to redirect the reach to a new destination. The correlation between the latency of the head and hand adjustment to the perturbation were 0.85 and 0.78 for movements to the left and to the right, respectively, indicating a tight coupling. The time between the start of the perturbation and peak velocity (TPPV) was significantly shorter for the head movement than for the hand movement, indicating that the head is leading the hand. 相似文献
496.
Wendy L. Stone Opal Y. Ousley Cynthia D. Littleford 《Journal of abnormal child psychology》1997,25(6):475-485
Two studies investigated the nature of motor imitation in young children with autism. Study 1 compared different types of motor imitation in 18 autistic children, 18 children with developmental delay, and 18 normally developing children. Results revealed weaker imitation skills for the autistic group, though all groups demonstrated a similar pattern of performance across different imitation domains. Imitation of body movements was more difficult than imitation of actions with objects, and imitation of nonmeaningful actions was more difficult than imitation of meaningful actions. Study 2 investigated concurrent and predictive relations between imitation and other developmental skills within a sample of 26 two-year-old children with autism. Results suggested that imitation of body movements and imitation of actions with objects represent independent dimensions. Imitation of body movements was concurrently and predictively associated with expressive language skills, and imitation of actions with objects was concurrently associated with play skills. Improvements in both motor imitation domains occurred over a 1-year period. 相似文献
497.
Vamik D. Volkan 《Journal of Applied Psychoanalytic Studies》1999,1(3):223-247
This paper focuses on the predominant repetitive activities in which a large group engages to maintain and/or repair its identity. These repetitive activities constitute large-group rituals and can be divided into two general categories: (1) rituals that occur within a society that do not involve an active relationship with a contemporary other large group; and (2) rituals that occur through and depend upon the interaction with an opposing or enemy large group, usually a neighbor. Because others are used as reservoirs for unwanted parts, both at individual and group levels, and are needed to support aspects of identity and a shared sense of sameness, the first type of ritual may also include reference to shared images of others from the large group's past. They therefore may not be strictly domestic or indigenous. Furthermore, the intensity and content of both types of rituals occur across a spectrum depending on whether a large group is at peace, in a hot conflict with an enemy group, or otherwise destabilized due to crises. 相似文献
498.
Hartmut Rübeling 《Integrative psychological & behavioral science》1993,28(1):29-45
The role of Pavlovian contingencies in human skilled motor behavior was investigated in three experiments by means of a new
conditioning preparation. In Experiment 1 the present method was shown to be appropriate for the study of associative learning.
Subjects who experienced a standard delay configuration performed significantly more conditioned responses than subjects who
received either backward conditioning or random pairings. Stimulus generalization was shown to be slight in two additional
groups. Subsequent experiments examined conditioning with multiple conditioned stimuli (CSs). In particular, in Experiment
2 some reciprocal overshadowing was demonstrated when two conditional stimuli (tone and vibration) were compounded. Experiment
3 investigated blocking. Blocking was less than expected, however. Subjects’ perceptions of the stimuli and reaction time
data suggest that a certain proportion had shifted their attention to the added element of the CS compound. Results are discussed
in relation to other studies on Pavlovian learning in humans and animals, which are concerned with “stimulus selection.” 相似文献
499.
Sensation of effort and duration of mentally executed actions 总被引:3,自引:0,他引:3
The aim of this study was to examine whether a sensation of effort would arise in subjects requested, by verbal instructions, to mentally perform motor tasks with an internal imagery strategy. Sixteen subjects had to imagine themselves, from a first person perspective, writing a sentence and drawing a Necker's cube either with their right dominant hand or with their left hand, as well as hopping around a square either on their right or left foot. The time needed to mentally execute these actions was measured. The sensation of effort following the mental performance and the difficulty of imaging the tasks were assessed by means of two analog rating scales. The results indicate that the sensation of effort increased across the trials. Furthermore, a negative correlation coefficient (mean r = -0.99) was found between the difficulty to imagining a given motor task and the subjective sensation of effort across the trials. Moreover, the sensation of effort was more pronounced when the tasks involved the non-dominant limb. 相似文献
500.
George A. Thompson Brian A. Iwata Holly Poynter 《Journal of applied behavior analysis》1979,12(3):325-333
Pathological tongue thrust (reverse swallowing) has been associated with neuromuscular disorders and linked to dental malocclusion, articulation problems, difficulty in eating, and excessive drooling. In this study, observable tongue thrust in a 10-year-old retarded male was modified during mealtime using a procedure consisting of differential reinforcement (presentation of food contingent upon tongue in) and punishment (gently pushing the tongue back into the mouth with a spoon). Results of a reversal design showed substantial decreases in tongue thrust and food expulsion, and a large increase in observed chewing. These data compared favorably with data obtained for other retarded persons not judged to be tongue thrusters; in addition, the objective results of the treatment program were substantiated via pre-post evaluations done by occupational and physical therapists. These findings suggest that operant techniques may be an effective means of treating tongue thrust and its associated problems, and that further development and evaluation of behavioral interventions may provide a desirable alternative to more intrusive surgical or mechanical procedures. 相似文献