Magistro_6574178.pdf (7.42 MB)
Effects of time-compressed speech training on multiple functional and structural neural mechanisms involving the left superior temporal gyrus
journal contribution
posted on 2017-11-22, 16:41 authored by Tsukasa Maruyama, Hikaru Takeuchi, Yasuyuki Taki, Kosuke Motoki, Hyeonjeong Jeong, Yuka Kotozaki, Takamitsu Shinada, Seishu Nakagawa, Rui Nouchi, Kunio Iizuka, Ryoichi Yokoyama, Yuki Yamamoto, Sugiko Hanawa, Tsuyoshi Araki, Kohei Sakaki, Yukako Sasaki, Daniele Magistro, Ryuta KawashimaTime-compressed speech is an artificial form of rapidly presented speech.
Training with time compressed speech in a second language leads to adaptation toward
time-compressed speech in a second language and toward time compressed speech in
different languages. However, the effects of training with time-compressed speech of a
second language (TCSSL) on diverse cognitive functions and neural mechanisms
beyond time compressed speech-related activation are unknown. We investigated the
effects of 4 weeks of training with TCSSL on the fractional amplitude of spontaneous
low-frequency fluctuations (fALFF) of 0.01–0.08 Hz, resting-state functional
connectivity (RSFC) with the left superior temporal gyrus (STG), fractional anisotropy
(FA), and regional gray matter volume (rGMV) of young adults by magnetic resonance
imaging. There were no significant differences in change of performance of measures of
cognitive functions or second language skills after training with TCSSL compared with
that of the active control group. However, compared with the active control group,
training with TCSSL was associated with increased fALFF, RSFC, and FA and
decreased rGMV involving areas in the left STG. These results lacked evidence of a far
transfer effect of time compressed speech training on a wide range of cognitive
functions and second language skills in young adults. However, these results
demonstrated effects of time compressed speech training on gray and white matter
structures as well as on resting-state intrinsic activity and connectivity involving the left
STG, which plays a key role in listening comprehension.
Funding
This study was supported by grants from JST/RISTEX and JST/CREST, and a Grant-in-Aid for Young Scientists (A) (KAKENHI 25700012) from the Ministry of Education, Culture, Sports, Science, and Technology of Japan.
History
School
- Sport, Exercise and Health Sciences
Published in
Neural PlasticityCitation
MARUYAMA, T. ... et al, 2018. Effects of time-compressed speech training on multiple functional and structural neural mechanisms involving the left superior temporal gyrus. Neural Plasticity, 2018: 6574178.Publisher
Hindawi Publishing CorporationVersion
- NA (Not Applicable or Unknown)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution 4.0 International (CC BY 4.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/ by/4.0/Acceptance date
2017-11-01Publication date
2018Notes
This is an Open Access article distributed under the Creative Commons Attribution (CC BY) licence.ISSN
1687-5443Publisher version
Language
- en