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Functional Near-Infrared Spectroscopy in the Study of Speech and Language Impairment Across the Life Span: A Systematic Review.

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Title: Functional Near-Infrared Spectroscopy in the Study of Speech and Language Impairment Across the Life Span: A Systematic Review.
Authors: Butler, Lindsay K.1 lbutlert@bu.edu, Kiran, Swathi1, Tager-Flusberg, Helen2
Source: American Journal of Speech-Language Pathology. Aug2020, Vol. 29 Issue 3, p1674-1701. 28p.
Subject Terms: *Speech therapy, *Alzheimer's disease, *Aphasia, *Autism, *Physiological control systems, *Dysarthria, *Stuttering, Language disorder diagnosis, Treatment of language disorders, Speech disorder diagnosis, Reactive oxygen species, Brain injuries, Cochlear implants, Cognition disorders, Deafness, Dementia, Psychology information storage & retrieval systems, MEDLINE, Near infrared spectroscopy, Online information services, Oxygen in the body, Stroke, Systematic reviews, Medical artifacts, Locked-in syndrome
Abstract: Purpose: Functional brain imaging is playing an increasingly important role in the diagnosis and treatment of communication disorders, yet many populations and settings are incompatible with functional magnetic resonance imaging and other commonly used techniques. We conducted a systematic review of neuroimaging studies using functional nearinfrared spectroscopy (fNIRS) with individuals with speech or language impairment across the life span. We aimed to answer the following question: To what extent has fNIRS been used to investigate the neural correlates of speechlanguage impairment? Method: This systematic review was preregistered with PROSPERO, the international prospective register of systematic reviews (CRD42019136464). We followed the Preferred Reporting Items for Systematic Reviews and Meta- Analyses (PRISMA) protocol for preferred reporting items for systematic reviews. The database searches were conducted between February and March of 2019 with the following search terms: (a) fNIRS or functional near-infrared spectroscopy or NIRS or near-infrared spectroscopy, (b) speech or language, and (c) disorder or impairment or delay. Results: We found 34 fNIRS studies that involved individuals with speech or language impairment across nine categories: (a) autism spectrum disorders; (b) developmental speech and language disorders; (c) cochlear implantation and deafness; (d) dementia, dementia of the Alzheimer's type, and mild cognitive impairment; (e) locked-in syndrome; (f) neurologic speech disorders/dysarthria; (g) stroke/aphasia; (h) stuttering; and (i) traumatic brain injury. Conclusions: Though it is not without inherent challenges, fNIRS may have advantages over other neuroimaging techniques in the areas of speech and language impairment. fNIRS has clinical applications that may lead to improved early and differential diagnosis, increase our understanding of response to treatment, improve neuroprosthetic functioning, and advance neurofeedback. [ABSTRACT FROM AUTHOR]
Copyright of American Journal of Speech-Language Pathology is the property of American Speech-Language-Hearing Association and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Education Research Complete
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  Data: Functional Near-Infrared Spectroscopy in the Study of Speech and Language Impairment Across the Life Span: A Systematic Review.
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  Data: <searchLink fieldCode="AR" term="%22Butler%2C+Lindsay+K%2E%22">Butler, Lindsay K.</searchLink><relatesTo>1</relatesTo><i> lbutlert@bu.edu</i><br /><searchLink fieldCode="AR" term="%22Kiran%2C+Swathi%22">Kiran, Swathi</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Tager-Flusberg%2C+Helen%22">Tager-Flusberg, Helen</searchLink><relatesTo>2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22American+Journal+of+Speech-Language+Pathology%22">American Journal of Speech-Language Pathology</searchLink>. Aug2020, Vol. 29 Issue 3, p1674-1701. 28p.
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  Data: *<searchLink fieldCode="DE" term="%22Speech+therapy%22">Speech therapy</searchLink><br />*<searchLink fieldCode="DE" term="%22Alzheimer's+disease%22">Alzheimer's disease</searchLink><br />*<searchLink fieldCode="DE" term="%22Aphasia%22">Aphasia</searchLink><br />*<searchLink fieldCode="DE" term="%22Autism%22">Autism</searchLink><br />*<searchLink fieldCode="DE" term="%22Physiological+control+systems%22">Physiological control systems</searchLink><br />*<searchLink fieldCode="DE" term="%22Dysarthria%22">Dysarthria</searchLink><br />*<searchLink fieldCode="DE" term="%22Stuttering%22">Stuttering</searchLink><br /><searchLink fieldCode="DE" term="%22Language+disorder+diagnosis%22">Language disorder diagnosis</searchLink><br /><searchLink fieldCode="DE" term="%22Treatment+of+language+disorders%22">Treatment of language disorders</searchLink><br /><searchLink fieldCode="DE" term="%22Speech+disorder+diagnosis%22">Speech disorder diagnosis</searchLink><br /><searchLink fieldCode="DE" term="%22Reactive+oxygen+species%22">Reactive oxygen species</searchLink><br /><searchLink fieldCode="DE" term="%22Brain+injuries%22">Brain injuries</searchLink><br /><searchLink fieldCode="DE" term="%22Cochlear+implants%22">Cochlear implants</searchLink><br /><searchLink fieldCode="DE" term="%22Cognition+disorders%22">Cognition disorders</searchLink><br /><searchLink fieldCode="DE" term="%22Deafness%22">Deafness</searchLink><br /><searchLink fieldCode="DE" term="%22Dementia%22">Dementia</searchLink><br /><searchLink fieldCode="DE" term="%22Psychology+information+storage+%26+retrieval+systems%22">Psychology information storage & retrieval systems</searchLink><br /><searchLink fieldCode="DE" term="%22MEDLINE%22">MEDLINE</searchLink><br /><searchLink fieldCode="DE" term="%22Near+infrared+spectroscopy%22">Near infrared spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Online+information+services%22">Online information services</searchLink><br /><searchLink fieldCode="DE" term="%22Oxygen+in+the+body%22">Oxygen in the body</searchLink><br /><searchLink fieldCode="DE" term="%22Stroke%22">Stroke</searchLink><br /><searchLink fieldCode="DE" term="%22Systematic+reviews%22">Systematic reviews</searchLink><br /><searchLink fieldCode="DE" term="%22Medical+artifacts%22">Medical artifacts</searchLink><br /><searchLink fieldCode="DE" term="%22Locked-in+syndrome%22">Locked-in syndrome</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Purpose: Functional brain imaging is playing an increasingly important role in the diagnosis and treatment of communication disorders, yet many populations and settings are incompatible with functional magnetic resonance imaging and other commonly used techniques. We conducted a systematic review of neuroimaging studies using functional nearinfrared spectroscopy (fNIRS) with individuals with speech or language impairment across the life span. We aimed to answer the following question: To what extent has fNIRS been used to investigate the neural correlates of speechlanguage impairment? Method: This systematic review was preregistered with PROSPERO, the international prospective register of systematic reviews (CRD42019136464). We followed the Preferred Reporting Items for Systematic Reviews and Meta- Analyses (PRISMA) protocol for preferred reporting items for systematic reviews. The database searches were conducted between February and March of 2019 with the following search terms: (a) fNIRS or functional near-infrared spectroscopy or NIRS or near-infrared spectroscopy, (b) speech or language, and (c) disorder or impairment or delay. Results: We found 34 fNIRS studies that involved individuals with speech or language impairment across nine categories: (a) autism spectrum disorders; (b) developmental speech and language disorders; (c) cochlear implantation and deafness; (d) dementia, dementia of the Alzheimer's type, and mild cognitive impairment; (e) locked-in syndrome; (f) neurologic speech disorders/dysarthria; (g) stroke/aphasia; (h) stuttering; and (i) traumatic brain injury. Conclusions: Though it is not without inherent challenges, fNIRS may have advantages over other neuroimaging techniques in the areas of speech and language impairment. fNIRS has clinical applications that may lead to improved early and differential diagnosis, increase our understanding of response to treatment, improve neuroprosthetic functioning, and advance neurofeedback. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of American Journal of Speech-Language Pathology is the property of American Speech-Language-Hearing Association and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1044/2020_AJSLP-19-00050
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        Text: English
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      – SubjectFull: Alzheimer's disease
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      – SubjectFull: Aphasia
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              Text: Aug2020
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