Linking Sight and Sound: fMRI Evidence of Primary Auditory Cortex Activation during Visual Word Recognition  

Oleh:

Haist, Frank ; Song, Allen W. ; Wild, Krista ; Faber, Tracy L. ; Popp, Carol A. ; Morris, Robin D.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Brain and Language (Full Text) vol. 76 no. 3 (2001), page 340-350.
Topik: repetition priming; phonological processing; orthographic processing; neuropsychology; lexical decision; reading; functional neuroimaging; fMRI
Fulltext: 76_03_Haist.pdf (104.02KB)

Isi artikel

We describe two studies that used repetition priming paradigms to investigate brain activity during the reading of single words. Functional magnetic resonance images were collected during a visual lexical decision task in which nonword stimuli were manipulated with regard to phonological properties and compared to genuine English words. We observed a region in left-hemisphere primary auditory cortex linked to a repetition priming effect. The priming effect activity was observed only for stimuli that sound like known words; moreover, this region was sensitive to strategic task differences. Thus, a brain region involved in the most basic aspects of auditory processing appears to be engaged in reading even when there is no environmental oral or auditory component.

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