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Biomedical subjects

L Jordan-Brown

Publications and source records attributed to L Jordan-Brown.

2 recordsLinked to original sources

Hemispheric visual processing in face recognition.

Two experiments tested how facial details are used in recognizing face drawings presented to either the left or right visual field (VF). Subjects used inner and outer features about equally in both the left and right VFs. The major finding was a very strong tendency to recognize the upper facial features more accurately than the lower facial features. The top-to-bottom recognition difference occurred in both VFs, in contrast to an earlier study by J. Sergent (1982, Journal of Experimental Psychology: Human Perception and Performance, 8, 1-14). Methodological differences between the present experiments and Sergent's studies were discussed. It was concluded that both the left and right hemispheres recognize novel faces using top-to-bottom serial processing.

Adolescent

The validity of MMPI subtle and obvious items in psychiatric patients.

This study was designed to assess the validity of four clinical scales with and without subtle items; and the relative validity of obvious and subtle items. Criteria were questionnaire, mental status, diagnostic, and drug treatment measures; subjects were 73 psychiatric inpatients. Across criteria, the results indicated that the validity of the full scales was not improved by the removal of subtle items; and with the exception of the PD scale, subtle items generally were found to be of similar convergent validity and possibly superior discriminant validity. These findings have implications for psychometric theory and test construction strategies.

Adolescent