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221.
Digital filter techniques have been applied to the analysis of eye movement data. Methods were developed to calculate eye velocity and eye acceleration in real-time from an electronystag-mogram (ENG) signal that was recorded using a one-pole RC high-pass filter in the preamplifier. Nonrecursive, finite impulse-response digital filters were designed to remove the effects of the RC high-pass filter and calculate the first and second time derivatives of the ENG signal, as well as remove high-frequency noise. Applying these new techniques to the analysis of vestibular nystagmus enables estimation of the transfer characteristics of the vestibuloocular system. 相似文献
222.
A parent-administered program to reduce television viewing of primary school-aged children was tested on two boys and three girls from three different families who were heavy viewers of television. Children were given 20 unearned tokens each week by their parents, which they could exchange for up to 10 hours of viewing time. The child earned a gold token for viewing in accordance with the rules for 4 consecutive weeks, which was exchanged for a reward. Parents were given instructions to follow the program independently. Data on hours of television viewing, homework, and reading were recorded each day by one or both parents. A multiple-baseline analysis of the effects of the TV reduction program indicated that children reduced their baseline television viewing by more than half once the program was implemented, and continued to maintain these changes 6 months and 1 year after the program was discontinued. Reading time increased for all children whereas effects on homework varied across children. The results support the effectiveness of a parent-administered program for nonbehavior problem children who watch excessive amounts of television. 相似文献
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224.
This paper deals with the order in which different levels of form are recognized in a visual image. An experiment is reported in which the size of a tachistoscopically viewed image was varied. The results suggest neither an invariant “top-down” (gross shapes first followed by lower-order details) or “bottom-up” (the opposite) sequence. Rather, they seem to suggest a sort of “middle-out” sequence: forms at some intermediate level of structure having an optimal size or spatial-frequency spectrum are processed first, with subsequent processing of both higher and lower levels of form. 相似文献
225.
Christopher Wolfe 《Applied cognitive psychology》1995,9(5):453-454
226.
Martin Amerikaner Genevieve Monks Penny Wolfe Stuart Thomas 《Journal of counseling and development : JCD》1994,72(6):614-620
Two studies explored the relationships between individual psychological health (PH) status and perceptions of family interaction and family climate variables as perceived by young adults. Psychological health was defined within inter- and intrapersonal domains, represented by social interest and psychological hardiness. Scores on social interest and hardiness instruments were standardized and added to put the construct of psychological health into practice. Family interaction variables were measured with Family Adaptability and Cohesion Evaluation Scales-III (FACES-III), the Children's Report of Parent Behavior Inventory-30 (CRPBI-30), Parent-Adolescent Communication Scale (PAC), Family Satisfaction Scale (FSS), and the Family Environment Scale (FES). Multivariate analyses indicated that PH status was associated with several family variables, with cohesion emerging as a key dimension. Implications for counseling are discussed. 相似文献
227.
Previous studies have shown that the efficiency of visual search does not improve when participants search through the same unchanging display for hundreds of trials (repeated search), even though the participants have a clear memory of the search display. In this article, we ask two important questions. First, why do participants not use memory to help search the repeated display? Second, can context be introduced so that participants are able to guide their attention to the relevant repeated items? Experiments 1-4 show that participants choose not to use a memory strategy because, under these conditions, repeated memory search is actually less efficient than repeated visual search, even though the latter task is in itself relatively inefficient. However, when the visual search task is given context, so that only a subset of the items are ever pertinent, participants can learn to restrict their attention to the relevant stimuli (Experiments 5 and 6). 相似文献
228.
The present study tests various hypotheses about effects of gender and sexual orientation on jealousy. One hypothesis is derived from an evolutionary perspective and implies that the stimuli that elicit jealousy are sex-linked and independent of sexual orientation. Several others are based on a sociocultural perspective and imply that the experience of jealousy is linked to social experiences and beliefs that differ for men and women and for homosexuals and heterosexuals. To test these hypotheses, we examined the relative distress reported by heterosexual and homosexual participants while thinking about a partners' sexual vs. emotional infidelity. Participants were predominately Caucasian and included students at a Midwestern state university and attendees at a regional gay and lesbian conference. The results reveal that all groups except heterosexual men experience greater distress when confronted with a partners' emotional infidelity. This pattern contradicts the evolutionary hypothesis that the experience of romantic jealousy is sex-linked. However, our multifaceted attempt to identify social experiences or beliefs that account for the greater sexual jealousy of heterosexual men relative to everyone else was only partly successful. 相似文献
229.
230.
Bochao Zou Igor S. Utochkin Yue Liu Jeremy M. Wolfe 《Attention, perception & psychophysics》2017,79(2):473-483
Binocular rivalry is a phenomenon of visual competition in which perception alternates between two monocular images. When two eye’s images only differ in luminance, observers may perceive shininess, a form of rivalry called binocular luster. Does dichoptic information guide attention in visual search? Wolfe and Franzel (Perception & Psychophysics, 44(1), 81–93, 1988) reported that rivalry could guide attention only weakly, but that luster (shininess) “popped out,” producing very shallow Reaction Time (RT) × Set Size functions. In this study, we have revisited the topic with new and improved stimuli. By using a checkerboard pattern in rivalry experiments, we found that search for rivalry can be more efficient (16 ms/item) than standard, rivalrous grating (30 ms/item). The checkerboard may reduce distracting orientation signals that masked the salience of rivalry between simple orthogonal gratings. Lustrous stimuli did not pop out when potential contrast and luminance artifacts were reduced. However, search efficiency was substantially improved when luster was added to the search target. Both rivalry and luster tasks can produce search asymmetries, as is characteristic of guiding features in search. These results suggest that interocular differences that produce rivalry or luster can guide attention, but these effects are relatively weak and can be hidden by other features like luminance and orientation in visual search tasks. 相似文献