Phonological memory in sign language relies on the visuomotor neural system outside the left hemisphere language network
Using functional magnetic resonance imaging, the present study investigated neural activation while bilinguals of spoken and signed language were engaged in a sequence memory span task. On each trial, participants viewed a nonsense syllable sequence presented either as written letters or as fingerspelling (4-7 syllables in length) and then held the syllable sequence for 12 s. Behavioral analysis revealed that participants relied on phonological memory while holding verbal information regardless of the type of input modality. At the neural level, this maintenance stage broadly activated the left-hemisphere language network, including the inferior frontal gyrus, supplementary motor area, superior temporal gyrus and inferior parietal lobule, for both letter and fingerspelling conditions.
- Yuji Kanazawa
Siemens Trio 3 T head scanner with 32 channel phased-array head coil
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This data was obtained from the OpenfMRI database. Its accession number is ds000237
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Revision: 1.0.0 Date Set: Aug. 10, 2017, 7:37 p.m.
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