The role of motion direction selective extrastriate regions in reading: a transcranial magnetic stimulation study  

Oleh:

Liederman, Jacqueline ; Fisher, Janet McGraw ; Schulz, Marcela ; Maxwell, Carolyn ; Theoret, Hugo ; Pascual-Leone, Alvaro

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Brain and Language (Full Text) vol. 85 no. 1 (2003), page 140-155.
Topik: TMS; Reading; Phonological processing; Dyslexia
Fulltext: 85_01_Liederman.pdf (319.68KB)

Isi artikel

Why reading ability is correlated with motion processing ability is perplexing. Activity in motion direction processing regions (Area V5/MT+) was perturbed by means of repetitive transcranial magnetic stimulation (rTMS) to examine its effect on reading. A functional probe (significant shortening of the motion aftereffect) was used to identify Area V5/MT+. Righthanded participants (8 m, 8 f) received three 7.5 min blocks of rTMS, after which two phonological and one orthographic reading tasks were administered. Application of rTMS to Area V5/MT+ (as compared to a non-rTMS baseline) significantly decreased performance only during non-word naming. The pattern of naming errors and the absence of deficits on the second phonological task were not consistent with a role for Area V5/MT+ in phonological decoding. Instead, its role in reading may be limited to image stabilization and/or letter localization.

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