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31.
Binocular processing was investigated using a quantitative, process-oriented metatheory of response times. The analyses are not confined to particular distributional assumptions or specific models. Upper and lower performance boundaries for probability summation in parallel processing are defined and compared with observed distributions of reaction times using a variety of dichoptic stimuli. Performance that exceeds the upper bound strongly suggests faciliatory convergence between the two eyes (binocular channel summation). Performance below the lower bound suggests that inputs to the two eyes are processed serially. The results indicate that binocular channel summation in subjects with normal stereo vision requires targets of the same luminance polarity (paired increments or decrements) in corresponding retinal locations. When corresponding retinal locations are stimulated with opposing luminance polarities (increment to one eye, decrement to the other), performance is consistent with probability summation, indicating that parallel ON and OFF pathways remain segregated at least to the level of binocular fusion. Further analyses of data from a stereo-blind observer suggests serial processing of binocular inputs. 相似文献
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G. C. Grindley Valerie Townsend 《Quarterly journal of experimental psychology (2006)》1966,18(4):319-326
Voluntary attention to one of two static objects in the peripheral field of one eye makes this object more liable to masking by a moving object in the corresponding area of the field of the other eye (Experiment 1).
Positive after images (and probably negative after images) are subject to (binocular) movement masking (Experiment 2).
Movement masking can occur in the field of either eye, but with the displays so far tried the inhibitory influence of a moving object is less in the field of the eye to which it is shown than in the field of the other eye (Experiment 3). 相似文献
Positive after images (and probably negative after images) are subject to (binocular) movement masking (Experiment 2).
Movement masking can occur in the field of either eye, but with the displays so far tried the inhibitory influence of a moving object is less in the field of the eye to which it is shown than in the field of the other eye (Experiment 3). 相似文献
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Marzullo-Kerth D Reeve SA Reeve KF Townsend DB 《Journal of applied behavior analysis》2011,44(2):279-294
The current study examined the utility of multiple-exemplar training to teach children with autism to share. Stimuli from 3 of 4 categories were trained using a treatment package of video modeling, prompting, and reinforcement. Offers to share increased for all 3 children following the introduction of treatment, with evidence of skill maintenance. In addition, within-stimulus-category generalization of sharing was evident for all participants, although only 1 participant demonstrated across-category generalization of sharing. Offers to share occurred in a novel setting, with familiar and novel stimuli, and in the presence of novel adults and peers for all participants during posttreatment probes. 相似文献
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Morgan S. Hall Aubrey Newland Maria Newton Leslie Podlog Brian R. Baucom 《Journal of Applied Sport Psychology》2017,29(1):75-87
The present study investigated the relationship between the social psychological climate and sport commitment on both the individual and team level. High school athletes (n = 400) competing on 27 different teams completed motivational climate, caring climate, and sport commitment measures. Multilevel models were constructed to examine the hierarchical relationship between the climates and commitment. Task-involving (γ20 =.15, t = 2.31, p =.02) and caring climates (γ10 =.33, t = 3.48, p =.002) were significantly related to commitment on the individual level, and a task-involving climate (γ02 = 1.13, t = 2.90, p =.008) was significantly related to commitment on the team level. In an effort to enhance commitment, coaches and sport psychology consultants may wish to employ strategies targeted toward the facilitation of task-involving and caring climates. 相似文献
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How does having a sibling in the military affect young adults? Despite increasing attention to the challenges faced by spouses and children of servicemembers, the siblings of servicemembers have been largely ignored. This qualitative investigation uses unstructured narratives to explore siblings' perceptions of changes in their lives and changes in the family of origin associated with having a family member enlist in the United States military. Thematic analyses revealed an acute period of conflict followed by reorganization, awareness of the parents' distress, changes in the emotional climate of the family, shifts in family roles, admiration for the military sibling, and increased meaning and purpose for the family following the servicemember's enlistment. Computer-assisted text analyses revealed both positive and negative emotional content associated with the siblings' military service. For professional psychologists who come into contact with siblings of servicemembers, it is important to recognize that military enlistment can have ripple effects and complicate other common individual and family stresses. More generally, it is important to provide siblings and the family of origin with information about what to expect during and after the servicemember's enlistment, especially since these families may lack support and contact from others going through similar transitions. 相似文献
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Fific M Nosofsky RM Townsend JT 《Journal of experimental psychology. Human perception and performance》2008,34(2):356-375
A growing methodology, known as the systems factorial technology (SFT), is being developed to diagnose the types of information-processing architectures (serial, parallel, or coactive) and stopping rules (exhaustive or self-terminating) that operate in tasks of multidimensional perception. Whereas most previous applications of SFT have been in domains of simple detection and visual-memory search, this research extends the applications to foundational issues in multidimensional classification. Experiments are conducted in which subjects are required to classify objects into a conjunctive-rule category structure. In one case the stimuli vary along highly separable dimensions, whereas in another case they vary along integral dimensions. For the separable-dimension stimuli, the SFT methodology revealed a serial or parallel architecture with an exhaustive stopping rule. By contrast, for the integral-dimension stimuli, the SFT methodology provided clear evidence of coactivation. The research provides a validation of the SFT in the domain of classification and adds to the list of converging operations for distinguishing between separable-dimension and integral-dimension interactions. 相似文献