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[Serial reactions in aphasic patients].

¹Rheinischen Landesklinik für Sprachgestörte, Bonn.

Fortschritte Der Neurologie-Psychiatrie

|July 1, 1990

Summary

Severe aphasia patients often insert automatic verbal series into speech and other expressive language. This "serial reaction" is a valuable neuropsychological sign indicating brain damage.

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Area of Science:

Neuropsychology
Neurolinguistics
Clinical Neurology

Background:

Aphasia, a language disorder resulting from brain damage, presents with diverse symptoms.
Automatized verbal series (e.g., days of the week) are typically preserved in aphasia.

Observation:

A novel symptom, termed "serial reaction," is observed in severe aphasia.
This involves the intrusion of automatized verbal series into spontaneous speech and other expressive modalities.
This automatism can sometimes substitute for a direct response.

Findings:

The serial reaction was present in 50% of 134 severe aphasia patients studied.
Incidence varied with aetiology, aphasia type, and observed language modalities.
Detailed case studies illustrate the phenomenon.

Implications:

Serial reaction is a clinically significant neuropsychological sign.
Its presence suggests an underlying organic brain lesion.
Further research can refine its diagnostic utility in aphasia.

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