Tactile salience influences extinction.

20 aprile 1998


Aglioti SSmania NMoro VPeru A.


We delivered unilateral (left or right) or bilateral tactile stimuli to hands or feet of right-brain-damaged patients, six with tactile extinction and two without. Stimuli were simple touches or sliding stimuli directed proximo-distally (e.g., toward the fingers) or disto-proximally (e.g., toward the forearm). Patients were asked to report number (one or two), type (touch or slide), and direction (proximo-distally or disto-proximally) of the experimental stimuli. Nonextinction patients performed perfectly. Extinction patients, although accurate in reporting single stimuli, omitted left stimuli under double-stimuli conditions. However, the number of left stimuli detected consciously was related to an imbalance of the salience between left and right stimuli. Moreover, in three patients the extinguished, left-sided stimulus, even when inaccessible to consciousness, influenced implicitly the report of the features of the right stimulus. Thus, the relationships between left and right stimuli can modulate both overtly and covertly the performance of extinction patients.

Neurology. 1998 Apr;50(4):1010-4.
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Books and Monographs

Il test di coordinazione motoria di Charlop-Atwell: la standardizzazione italiana.
Colella R, Quadri G, Boscaini F, Moro V, Albaret JM, 2014

Tornare a scuola dopo una grave cerebrolesione Moro Valentina, Rodolfi Chiara, 2012

La plasticità cerebrale. Alle radici del cambiamento
Moro Valentina, Filippi Barbara, 2010

L'agire educativo nella riabilitazione neuropsicologica
Moro Valentina, 2005

Valentina Moro and Riccardo Sartori are directors for the SEID editor of the series "Strumenti in Psicologia, Educazione e Formazione" [Tools in Psychology, Education and Training].
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