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Biomedical subjects

P F Tegtmeyer

Publications and source records attributed to P F Tegtmeyer.

2 recordsLinked to original sources

Interpretation of white space responses in children's Rorschach protocols.

While most texts continue to assert that the Rorschach white space response (S) indicates hostility and oppositionality, several studies suggest that such responses are more accurately reflective of cognitive differentiation and autonomous strivings. In addition, there are no studies which have systematically explored the significance of S responses in children's protocols. To shed light on these issues, 47 children (7 to 13 yr.) were administered the Rorschach, Thematic Apperception Test, and the WISC-R, while their parents completed a behavioral checklist. Subjects with high S-response, independent of age, IQ, or perceptual accuracy, used the whole blot more often than those who made less frequent use of white space. They also had higher frequencies of shading determinants and blends and used more content categories. These results were interpreted as suggesting a tendency for subjects showing high S-response to construe the world in more complex terms. No differences were found between subjects high and low on S-response on either behavioral ratings or projective indices of hostility or negativism.

Adolescent

Visual selectivity in schizophrenia.

Further information concerning the nature of selective attention processes in schizophrenia was sought by examining selectivity in the region corresponding to the normal stationary visual field. Acute schizophrenic, chronic schizophrenic, and neurotic subjects were required to discriminate pairs of vertical columns of dots that varied in confusion value and in display angle. The results indicated that chronic subjects were only able to process low confusion peripheral stimuli within a narrow display angle of 12 degrees. Accurate discrimination of high confusion stimuli was limited among chronics to a display angle of 2 degrees. Acute schizophrenics were able to discriminate peripheral stimuli to 25 degrees. Although the performance of neurotic subjects was significantly better than that of chronic subjects, accurate discrimination of high confusion stimuli for neurotic subjects was limited to a display angle of 12 degrees. Differences in performance topography were attributed to the use of different selective strategies. The spatial extensity within which more efficient grouping strategies were used was apparently constricted for chronic schizophrenics and extended for acute schizophrenics relative to neurotic controls.

Adolescent