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At least 1,621 records · Page 90Linked to original sources
PubMed1977

Intra-cultural differences in the perception of visual illusions: an urban/rural comparison.

Urban and rural college students, men and women (n equal to 6 each, N equal to 24), were compared (2 x 2) on six geometric illusions using materials and procedures of Herskovits, Campbell, and Segall (1969). As expected, no significant differences in susceptibility were found for the Müller-Lyer, Sander parallelogram, or Poggendorf illusions. Rural subjects proved more susceptible to the perspective illusion; however, the urban group was more susceptible to the L-form of the horizontal-vertical illusion, but not to the T-form.

Culture↗
PubMed2000

Perception of visual illusions by novice and longer-term meditators.

Undergraduate volunteers were divided into Control (n= 18) and Novice Meditators (n = 8). Residents of an American Zen monastery who volunteered as subjects, having 1 year or more experience in meditation, formed a Longer-term Meditation group. All subjects were tested over five trials on the Poggendorff and Müller-Lyer illusions and completed the Taylor Manifest Anxiety Scale and the Beck Depression Inventory. Significant mean differences were found only for algebraic errors on the Poggendorff illusion, and significant decrement in illusion was noted for all subjects. A significant interaction was also found as the Longer-term Meditators showed less initial illusion and less dramatic decrement over five trials than the other groups. Finally, Longer-term Meditators exhibited significantly less anxiety and depression than the other two groups.

Adult↗
PubMed1998

Symmetry in haptic and in visual shape perception.

Four experiments tested the hypothesis that bilateral symmetry is an incidental encoding property in vision, but can also be elicited as an incidental effect in touch, provided that sufficient spatial reference information is available initially for haptic inputs to be organized spatially. Experiment 1 showed that symmetry facilitated processing in vision, even though the task required judgments of stimulus closure rather than the detection of symmetry. The same task and stimuli failed to show symmetry effects in tactual scanning by one finger (Experiment 2). Experiment 3 found facilitating effects for vertically symmetric open stimuli, although not for closed patterns, in two-forefinger exploration when the forefingers had previously been aligned to the body midaxis to provide body-centered spatial reference. The one-finger exploration condition again failed to show symmetry effects. Experiment 4 replicated the facilitating effects of symmetry for open symmetric shapes in tactual exploration by the two (previously aligned) forefingers. Closed shapes again showed no effect. Spatial-reference information, finger movements, and stimulus factors in shape perception by touch are discussed.

Form Perception↗
PubMed2003

Should significant others be encouraged to join adult group audiologic rehabilitation classes?

The benefit of participation in group audiologic rehabilitation classes was examined for adults with hearing loss (subjects) and their significant others (SOs). Thirteen subjects attended the classes with their SOs, and 12 subjects attended the classes on their own. All subjects attended six 90-minute classes consisting of informational lectures, and training in communication strategies, auditory perception, and auditory and visual perception. Self-assessment scales measuring hearing aid benefit and use of communication strategies were completed prior to class participation and following the completion of all classes. The results indicated that the majority of subjects reported increased use of communication strategies following class participation. In addition, a significant reduction in hearing handicap following class participation was measured across all subjects and SOs, and the greatest reduction in handicap was measured for subjects who attended the classes with their SOs. SO participation in group AR (audiologic rehabilitation) classes should be encouraged.

Aged↗