Search Terms Used for Each Database:
Database	Search Terms
PubMed	((((((“dual”) AND “task” OR “motor skill” [Mesh] OR “motor skill”))) AND ((“gait” [Mesh] OR “gait” OR “locomotion” [Mesh] OR “locomotion” OR “walking” [Mesh] OR “walking” OR “ambulation” [Mesh] OR “ambulation”))) AND (“adults”)) AND ((“neuroimaging” [Mesh] OR “neuroimaging” OR “fNIRS” OR “functional near infra *”)) Species—Humans, Language—English.
Cumulative Index of Nursing and Allied Health	((“dual task”) AND (“walking” OR “gait” OR “locomotion” OR “ambulation”) AND (“adults”) AND (“neuroimaging” OR “fNIRS” OR “functional near infra *”)))Limiters: English language; Human, Journal article
Web of Science	((TS = ((“dual task”) AND (“walking” OR “gait” OR “locomotion” OR “ambulation”) AND (“adults”) AND (“neuroimaging” OR “fNIRS” OR “functional near infra *”)))) AND LANGUAGE: (English) AND DOCUMENT TYPES: (Article)Timespan: All years. Indexes: SCI-EXPANDED.
PsycINFO	((((((“dual”) AND “task” OR “motor skill” [Mesh] OR “motor skill”))) AND ((“gait” [Mesh] OR “gait” OR “locomotion” [Mesh] OR “locomotion” OR “walking” [Mesh] OR “walking” OR “ambulation” [Mesh] OR “ambulation”))) AND (“adults”)) AND ((“neuroimaging” [Mesh] OR “neuroimaging” OR “fNIRS” OR “functional near infra *”))Age: 18 yr & older; Language: English; Record type: Journal article; Population: Humans.
Scopus	( ( ( ( ( ( “dual” ) AND “task” OR “motor skill” [mesh] OR “motor skill” ) ) ) AND ( ( “gait” [mesh] OR “gait” OR “locomotion” [mesh] OR “locomotion” OR “walking” [mesh] OR “walking” OR “ambulation” [mesh] OR “ambulation” ) ) ) AND ( “adults” ) ) AND ( ( “neuroimaging” [mesh] OR “neuroimaging” OR “fNIRS” OR “functional near infra *” ) ) AND ( LIMIT-TO ( DOCTYPE, “ar” ) ) AND ( LIMIT-TO ( LANGUAGE, “English” ) ) AND ( LIMIT-TO ( SRCTYPE, “j” ) )Document type: Journal article; Language: English
Note: * represents wild card.