Paper Info
Title
Functional Mapping of Inner Speech Areas: A Preliminary Study with Portuguese Speakers.
Abstract
Inner speech can be defined as the act of talking silently with ourselves. Several studies aimed to understand how this process is related to speech organization and language. Despite the advances, some results are still contradictory. Importantly, language dependency is scarcely studied. For this first study of inner speech for Portuguese native speakers using fMRI, we selected a confrontation naming task, consisting of 40 black and white line drawings. Five healthy participants were instructed to name in inner and in overt speech the visually presented image. fMRI data analysis considering the proposed inner speech paradigm identified several brain areas such as the left inferior frontal gyrus, including Broca's area, supplementary motor area, precentral gyrus and left middle temporal gyrus including Wernicke's area. Our results also show more pronounced bilateral activations during the overt speech task when compared to inner speech, suggesting that inner and overt speech activate similar areas but stronger activation can be found in the later. However, this difference stems in particular from significant activation differences in the right pre-central gyrus and middle temporal gyrus.
Year
DOI
Venue
2018
10.1007/978-3-319-99579-3_18
Lecture Notes in Artificial Intelligence
Keywords
Field
DocType
Inner speech portuguese,First keyword,Overt speech,fMRI,Portuguese
Portuguese,Psychology,Supplementary motor area,Functional mapping,Gyrus,Precentral gyrus,Audiology,Left inferior frontal gyrus,Line drawings,Middle temporal gyrus
Conference
Volume
ISSN
Citations 
11096
0302-9743
0
PageRank 
References 
Authors
0.34
2
10
Name
Order
Citations
PageRank
Carlos Ferreira1323.62
Bruno Direito2416.55
Alexandre Sayal300.34
Marco Simões4172.25
Inês Cadório500.34
Paula Martins6406.51
Marisa Lousada700.34
Daniela Figueiredo800.34
Miguel Castelo-Branco94411.81
António J. S. Teixeira1015235.26