Reduction of left visual field lexical decision accuracy as a result of concurrent nonverbal auditory stimulation  

Oleh:

Strien, Jan W. van

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Brain and Language (Full Text) vol. 88 no. 1 (2004), page 128-132.
Topik: Lexical decision; Hemispheric specialization; Laterality; Visual hemifield; Emotional valence; Limited resources; Cognitive processing
Fulltext: 88_01_Strien.pdf (184.79KB)

Isi artikel

To investigate whether concurrent nonverbal sound sequences would affect visual-hemifield lexical processing, lexical-decision performance of 24 strongly right-handed students (12 men, 12 women) was measured in three conditions: baseline, concurrent neutral sound sequence, and concurrent emotional sound sequence. With the neutral sequence, Naveteur, Roy, Ovelac, and Steinling (1992) had observed a right greater than left cerebral blood flow, and an opposite pattern with the emotional sequence. In the present study, the neutral sound sequence induced a significant accuracy reduction for lexical decisions to stimuli presented in the left visual field. It is hypothesized that RH activation in response to neutral sounds interferes with the limited lexical processing resources of that hemisphere.

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