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Perceptual and premotor components of unilateral auditory neglect

Published online by Cambridge University Press:  26 February 2009

Roberto Sterzi ,
Sylvie Piacentini ,
Mario Polimeni ,
Francesco Liverani  and
Edoardo Bisiach
Roberto Sterzi
Affiliation:
Divisione Neurologia, Ospedale Niguarda, Milano, Italy
Sylvie Piacentini
Affiliation:
Dipartimento di Psicologia, Università di Torino, Italy
Mario Polimeni
Affiliation:
Divisione Neurologia, Ospedale Niguarda, Milano, Italy
Francesco Liverani
Affiliation:
Istituto Pio Albergo Trivulzio, Milano, Italy
Edoardo Bisiach
Affiliation:
Dipartimento di Psicologia, Università di Torino, Italy
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Abstract

Recent investigations have distinguished between ophthalmokinetic and melokinetic factors of unilateral neglect. The aim of our study was to investigate the possible dissociation between melokinetic (premotor) and perceptual factors, avoiding any overt oculokinctic components. We asked four blindfolded left neglect patients to set a dichotic sound in central position, by moving a handle controlling the difference of intensity between the sounds delivered to the left and to the right cars. Two conflicting conditions were used. In the congruent condition, the sound moved in the same direction as the hand movement; in the noncongruent condition, it moved in the opposite direction. One patient performed as if suffering from melokinetic neglect, and another as if suffering from perceptual neglect. The behavior of the other two subjects did not lend itself to a clearcut interpretation. (JINS, 1996, 2, 419–425.)

Keywords

Spatial attentionAuditory processingUnilateral neglect
Type
Thematic Articles
Information
Journal of the International Neuropsychological Society , Volume 2 , Issue 5 , September 1996 , pp. 419 - 425
Copyright
Copyright © The International Neuropsychological Society 1996

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References

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