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Fingertip number-writing errors by psychiatric patients.

J K Maxwell, F Wise, M Pepping

Perceptual and Motor Skills

|December 1, 1984

Summary

The Fingertip Number Writing test reveals a consistent left-hand advantage in psychiatric patients. This finding suggests potential right-hemisphere involvement in tactile-spatial skills, though practice effects require further investigation.

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Area of Science:

Neuropsychology
Cognitive Neuroscience
Psychiatry

Background:

The Fingertip Number Writing test is used to assess tactile-spatial processing.
Understanding hemispheric dominance in sensory tasks is crucial for neuropsychological assessment.

Purpose of the Study:

To investigate the presence and reliability of a left-hand advantage in the Fingertip Number Writing test.
To explore potential hemispheric lateralization in tactile-spatial abilities within a psychiatric patient cohort.

Main Methods:

Analysis of records from 495 psychiatric patients across two neuropsychology laboratories.
Application of the standard Fingertip Number Writing test protocol.

Main Results:

A significant and reliable left-hand advantage was observed in the Fingertip Number Writing test.

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This advantage was consistent both within and between the participating laboratories.

Conclusions:

The Fingertip Number Writing test demonstrates a left-hand advantage, potentially indicating right-hemisphere superiority in tactile-spatial processing.
Further research is needed to differentiate between true functional superiority and potential practice effects due to task methodology.