Transcranial direct current stimulation over Broca's region improves phonemic and semantic fluency in healthy individuals

Z. Cattaneo, A. Pisoni, C. Papagno

Research output: Contribution to journalArticle

116 Citations (Scopus)

Abstract

Previous studies have demonstrated that transcranial direct current stimulation (tDCS) can be proficiently used to modulate attentional and cognitive functions. For instance, in the language domain there is evidence that tDCS can fasten picture naming in both healthy individuals and aphasic patients, or improve grammar learning. In this study, we investigated whether tDCS can be used to increase healthy subjects' performance in phonemic and semantic fluency tasks, that are typically used in clinical assessment of language. Ten healthy individuals performed a semantic and a phonemic fluency task following anodal tDCS applied over Broca's region. Each participant underwent a real and a sham tDCS session. Participants were found to produce more words following real anodal tDCS both in the phonemic and in the semantic fluency. Control experiments ascertained that this finding did not depend upon unspecific effects of tDCS over levels of general arousal or attention or upon participants' expectations. These data confirm the efficacy of tDCS in transiently improving language functions by showing that anodal stimulation of Broca's region can enhance verbal fluency. Implications of these results for the treatment of language functions in aphasia are considered.

Original languageEnglish
Pages (from-to)64-70
Number of pages7
JournalNeuroscience
Volume183
DOIs
Publication statusPublished - Jun 2 2011

Fingerprint

Semantics
Language
Broca Area
Transcranial Direct Current Stimulation
Aphasia
Arousal
Cognition
Healthy Volunteers
Learning

Keywords

  • Aphasia rehabilitation
  • Broca's region
  • Language functions
  • TDCS
  • Verbal fluency

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Transcranial direct current stimulation over Broca's region improves phonemic and semantic fluency in healthy individuals. / Cattaneo, Z.; Pisoni, A.; Papagno, C.

In: Neuroscience, Vol. 183, 02.06.2011, p. 64-70.

Research output: Contribution to journalArticle

@article{b1905e2c0bff4b22b63047d09a0ec8dc,
title = "Transcranial direct current stimulation over Broca's region improves phonemic and semantic fluency in healthy individuals",
abstract = "Previous studies have demonstrated that transcranial direct current stimulation (tDCS) can be proficiently used to modulate attentional and cognitive functions. For instance, in the language domain there is evidence that tDCS can fasten picture naming in both healthy individuals and aphasic patients, or improve grammar learning. In this study, we investigated whether tDCS can be used to increase healthy subjects' performance in phonemic and semantic fluency tasks, that are typically used in clinical assessment of language. Ten healthy individuals performed a semantic and a phonemic fluency task following anodal tDCS applied over Broca's region. Each participant underwent a real and a sham tDCS session. Participants were found to produce more words following real anodal tDCS both in the phonemic and in the semantic fluency. Control experiments ascertained that this finding did not depend upon unspecific effects of tDCS over levels of general arousal or attention or upon participants' expectations. These data confirm the efficacy of tDCS in transiently improving language functions by showing that anodal stimulation of Broca's region can enhance verbal fluency. Implications of these results for the treatment of language functions in aphasia are considered.",
keywords = "Aphasia rehabilitation, Broca's region, Language functions, TDCS, Verbal fluency",
author = "Z. Cattaneo and A. Pisoni and C. Papagno",
year = "2011",
month = "6",
day = "2",
doi = "10.1016/j.neuroscience.2011.03.058",
language = "English",
volume = "183",
pages = "64--70",
journal = "Neuroscience",
issn = "0306-4522",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Transcranial direct current stimulation over Broca's region improves phonemic and semantic fluency in healthy individuals

AU - Cattaneo, Z.

AU - Pisoni, A.

AU - Papagno, C.

PY - 2011/6/2

Y1 - 2011/6/2

N2 - Previous studies have demonstrated that transcranial direct current stimulation (tDCS) can be proficiently used to modulate attentional and cognitive functions. For instance, in the language domain there is evidence that tDCS can fasten picture naming in both healthy individuals and aphasic patients, or improve grammar learning. In this study, we investigated whether tDCS can be used to increase healthy subjects' performance in phonemic and semantic fluency tasks, that are typically used in clinical assessment of language. Ten healthy individuals performed a semantic and a phonemic fluency task following anodal tDCS applied over Broca's region. Each participant underwent a real and a sham tDCS session. Participants were found to produce more words following real anodal tDCS both in the phonemic and in the semantic fluency. Control experiments ascertained that this finding did not depend upon unspecific effects of tDCS over levels of general arousal or attention or upon participants' expectations. These data confirm the efficacy of tDCS in transiently improving language functions by showing that anodal stimulation of Broca's region can enhance verbal fluency. Implications of these results for the treatment of language functions in aphasia are considered.

AB - Previous studies have demonstrated that transcranial direct current stimulation (tDCS) can be proficiently used to modulate attentional and cognitive functions. For instance, in the language domain there is evidence that tDCS can fasten picture naming in both healthy individuals and aphasic patients, or improve grammar learning. In this study, we investigated whether tDCS can be used to increase healthy subjects' performance in phonemic and semantic fluency tasks, that are typically used in clinical assessment of language. Ten healthy individuals performed a semantic and a phonemic fluency task following anodal tDCS applied over Broca's region. Each participant underwent a real and a sham tDCS session. Participants were found to produce more words following real anodal tDCS both in the phonemic and in the semantic fluency. Control experiments ascertained that this finding did not depend upon unspecific effects of tDCS over levels of general arousal or attention or upon participants' expectations. These data confirm the efficacy of tDCS in transiently improving language functions by showing that anodal stimulation of Broca's region can enhance verbal fluency. Implications of these results for the treatment of language functions in aphasia are considered.

KW - Aphasia rehabilitation

KW - Broca's region

KW - Language functions

KW - TDCS

KW - Verbal fluency

UR - http://www.scopus.com/inward/record.url?scp=79955617179&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79955617179&partnerID=8YFLogxK

U2 - 10.1016/j.neuroscience.2011.03.058

DO - 10.1016/j.neuroscience.2011.03.058

M3 - Article

VL - 183

SP - 64

EP - 70

JO - Neuroscience

JF - Neuroscience

SN - 0306-4522

ER -