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421.
B. L. Richardson D. B. Wuillemin F. J. Saunders 《Attention, perception & psychophysics》1978,24(6):546-550
Discriminably different sounds, concurrently presented from the left and right of the medial plane, were reduced in angular separation until subjects could no longer detect which sound was “left” and which was “right.” The procedure was repeated with hearing masked and judgments made on the basis of the tactile signals at two fingertip vibrators that received their inputs from two miniature microphones bilaterally located on the subject’s head. Auditory and tactile performance were compared under active (head movements permitted) and passive (head held still) conditions. Active and passive performance were not significantly different. Auditory and tactile performance became no better than chance at angular separations of 2.7° and 4.4°, respectively. Touch compared sufficiently well with audition to support arguments for the inclusion of sound localization information in devices which use the skin as a substitute for the ear. nt]mis|This research was conducted at the Smith-Kettlewell Institute of Visual Sciences, San Francisco, California. This institute provided the apparatus for the experiment. B. L. Richardson was on Staff Development Leave from the Applied Psychology Department of the Caulfield Institute of Technology, Melbourne, Australia. 相似文献
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423.
John B. Nezlek Deborah S. Richardson Laura R. Green Elizabeth C. Schatten‐Jones 《Personal Relationships》2002,9(1):57-71
A sample of 113 healthy older adults used a variant of the Rochester Interaction Record to describe the social interactions they had each day for two weeks. They also completed various measures of psychological well‐being including life satisfaction and loneliness. A series of multilevel random coefficient analyses found that life satisfaction scores were positively related to how enjoyable interactions were, how self‐assured people felt when interacting, how much control they felt they had over interactions, how responsive others were to their needs, and how socially active they were. Analyses that took participants’ marital status into account suggested, however, that interaction outcomes and life satisfaction were related only for married participants, and that these relationships were primarily due to interaction outcomes with spouses. 相似文献
424.
McNally GP Augustyn KA Richardson R 《Learning & memory (Cold Spring Harbor, N.Y.)》2008,15(3):106-111
Four experiments studied the role of GABA(A) receptors in the temporal dynamics of memory retention. Memory for an active avoidance response was a nonmonotonic function of the retention interval. When rats were tested shortly (2 min) or some time (24 h) after training, retention was excellent, but when they were tested at intermediate intervals (1-4 h), retention was poor. Activity at GABA(A) receptors was critical for impairing memory retention at the intermediate intervals because injection of the GABA(A) receptor partial inverse agonist FG7142 prior to test significantly improved performance. These retention enhancing effects of FG7142 were dose-dependent and not due to any nonspecific effects of FG7142 on activity. Our results suggest that the temporal dynamics of memory retention may be caused by variations in neurotransmission through the GABA(A) receptor in the post-training period. 相似文献
425.
Schmidt RC Richardson MJ Arsenault C Galantucci B 《Journal of experimental psychology. Human perception and performance》2007,33(4):860-870
This study investigated the role that visual tracking plays in coupling rhythmic limb movements to an environmental rhythm. Two experiments were conducted in which participants swung a hand-held pendulum while tracking an oscillating stimulus or while keeping their eyes fixed on a stationary location directly above an oscillating stimulus. It was expected that the participants' rhythmic movements would become entrained to the oscillating stimulus in both conditions but that visual tracking would strengthen this entrainment. Experiment 1 investigated the role of visual tracking in establishing unintentional entrainment. Experiment 2 investigated the role of visual tracking in intentional entrainment. As predicted, participants exhibited greater unintentional coordination and more stable intentional coordination when they tracked the stimulus. These findings highlight the importance of understanding the role of eye movements in environmental coordination. 相似文献
426.
Articulatory constraints on interpersonal postural coordination 总被引:1,自引:0,他引:1
Shockley K Baker AA Richardson MJ Fowler CA 《Journal of experimental psychology. Human perception and performance》2007,33(1):201-208
Cooperative conversation has been shown to foster interpersonal postural coordination. The authors investigated whether such coordination is mediated by the influence of articulation on postural sway. In Experiment 1, talkers produced words in synchrony or in alternation, as the authors varied speaking rate and word similarity. Greater shared postural activity was found for the faster speaking rate. In Experiment 2, the authors demonstrated that shared postural activity also increases when individuals speak the same words or speak words that have similar stress patterns. However, this increase in shared postural activity is present only when participants' data are compared with those of their partner, who was present during the task, but not when compared with the data of a member of a different pair speaking the same word sequences as those of the original partner. The authors' findings suggest that interpersonal postural coordination observed during conversation is mediated by convergent speaking patterns. 相似文献
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428.
Randall R. Benson D. H. Whalen Matthew Richardson Brook Swainson Vincent P. Clark Song Lai Alvin M. Liberman 《Brain and language》2001,78(3):364-396
Candidate brain regions constituting a neural network for preattentive phonetic perception were identified with fMRI and multivariate multiple regression of imaging data. Stimuli contrasted along speech/nonspeech, acoustic, or phonetic complexity (three levels each) and natural/synthetic dimensions. Seven distributed brain regions' activity correlated with speech and speech complexity dimensions, including five left-sided foci [posterior superior temporal gyrus (STG), angular gyrus, ventral occipitotemporal cortex, inferior/posterior supramarginal gyrus, and middle frontal gyrus (MFG)] and two right-sided foci (posterior STG and anterior insula). Only the left MFG discriminated natural and synthetic speech. The data also supported a parallel rather than serial model of auditory speech and nonspeech perception. 相似文献
429.
430.
Noncontingent reinforcement without extinction plus differential reinforcement of alternative behavior during treatment of problem behavior 下载免费PDF全文
Jennifer N. Fritz Lynsey M. Jackson Nicole A. Stiefler Barbara S. Wimberly Amy R. Richardson 《Journal of applied behavior analysis》2017,50(3):590-599
The effects of noncontingent reinforcement (NCR) without extinction during treatment of problem behavior maintained by social positive reinforcement were evaluated for five individuals diagnosed with autism spectrum disorder. A continuous NCR schedule was gradually thinned to a fixed‐time 5‐min schedule. If problem behavior increased during NCR schedule thinning, a continuous NCR schedule was reinstated and NCR schedule thinning was repeated with differential reinforcement of alternative behavior (DRA) included. Results showed an immediate decrease in all participants’ problem behavior during continuous NCR, and problem behavior maintained at low levels during NCR schedule thinning for three participants. Problem behavior increased and maintained at higher rates during NCR schedule thinning for two other participants; however, the addition of DRA to the intervention resulted in decreased problem behavior and increased mands. 相似文献