A special role for the right posterior superior temporal sulcus during speech production

• DOI: 10.1016/j.neuroimage.2019.116184
• Publication Date: 2019-09-11T06:02:28Z
• Authors: Adam Kenji Yamamoto; Oiwi Parker Jones; Thomas M.H. Hope; Susan Prejawa; Marion Oberhuber; Philipp Ludersdorfer; Tarek A. Yousry; David W. Green; Cathy J. Price
• Keywords: Superior temporal sulcus; Auditory perception

This fMRI study of 24 healthy human participants investigated whether any part the auditory cortex was more responsive to self-generated speech sounds compared hearing another person speak. The results demonstrate a double dissociation in two different parts cortex. In right posterior superior temporal sulcus (RpSTS), activation higher during production than listening stimuli, whereas bilateral gyri (STG), for stimuli production. second study, we function identified regions, by examining how changed across range and tasks that systematically varied demands on acoustic, semantic, phonological orthographic processing. RpSTS, conditions absence semantic cues, plausibly indicating increased attention spectral-temporal features inputs. addition, RpSTS responded inputs when were making one-back matching decisions visually presented pseudowords. After analysing influence visual, phonological, processing, propose (i) contributes short term memory as well (ii) processing input (iii) may play role integrating expectations with input. contrast, STG sensitive acoustic did not respond special therefore merits further investigation if are fully understand neural mechanisms supporting acquisition, adult life, loss after brain injury.