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Results for “Perceptual Distortion”

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At least 1,405 records · Page 78Linked to original sources
PubMed1975

Factors involved in visual capture.

Visual capture was explored using three types of vision-"touch" conflicts. The results indicated that the amount of visual capture differed for the three tasks. In one task (slant judgments) strong, but incomplete, visual capture occurred, in another (a length judgment task) an approximate compromise between the two modalities was found, and in the third task (texture judgments) a trend toward touch capture occurred. In two additional experiments using the slant task, the effects of brief training with one of the competing modalities and the effects of manipulating certain aspects of the stimulus display were explored. The bried training did not alter the resolution of the conflict but varying visual clarity and felt texture of the rod whose slant was being judged did affect visual capture.

Adult↗
PubMed1976

Relation between optically induced and tracking-limb-movement curvature in a visual capture phenomenon.

Two experiments were conducted to help determine the nature of visual capture in the perception of curvature. If an individual finger-tracks a straight edge while viewing limb movements through a curve-inducing lens, the edge is reported to feel curved even though the finger is moving in a straight path. It has recently been demonstrated, however, that the finger actually tracks the straight edge through a curved path with the same orientation as the induced visual curve. In order to specify more completely the degree of relation between the visual and tracking (motor) curves the first experiment determined the fate of tracking limb-movement curvature when the eyes were closed. The second experiment determined whether curvature of tracking limb movement decreased as the magnitude of the visual curve was decreased. Results from both experiments supported the contention that curved tracking limb movement may mediate the visual and felt curves. The nature of the mechanism underlying felt curvature in visual capture was discussed.

Female↗
PubMed1976

Extraordinary experiences during cross-modal perception.

9 Ss were requested to perceive simultaneously the taste of beer and a rhythmic sound, the pitch of which could be varied. The frequencies at which Ss experienced harmony between the taste and the sound were determined. At the pitch of harmony Ss reported characteristic experiences, e.g., optimum taste of the beer, rhythmic sensations in the head, and tickling sensations in the jaws and the mouth. 3 Ss also reported experiences resembling those described by persons under the influence of such drugs as mescaline, psilocybin, LSD, and cannabis.

Acoustic Stimulation↗
PubMed1976

Field dependency and perceptual cues in perception of two trapezoid illusions.

40 males and 40 females rated as field-independent or field-dependent on the Group Embedded-figures Test were tested on two dynamic trapezoid illusions and made position judgments of static trapezoidal targets. Field-independent subjects reported more illusory experiences on the perception of rotation of an oscillating target than the perception of oscillation of a rotating target. The opposite was true for field-dependent subjects. Position judgments were related to the latter illusion but not the former. There was strong evidence of a differential use of perceptual cues for the two dependent groups.

Adolescent↗