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  Department of Brain Sciences Theses Master

Effects of Olfactory Stimuli on Working Memory Performance and Prefrontal Cortex Activation

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dc.contributor.advisor 문제일 -
dc.contributor.author Yujin Ahn -
dc.date.accessioned 2026-09-01T19:31:01Z -
dc.date.available 2026-09-01T19:31:01Z -
dc.date.issued 2026 -
dc.identifier.uri https://scholar.dgist.ac.kr/handle/20.500.11750/60765 -
dc.identifier.uri http://dgist.dcollection.net/common/orgView/200001014559 -
dc.description olfactory stimulation, working memory, 3-back task, functional near-infrared spectroscopy [fNIRS], prefrontal hemodynamic response -
dc.description.tableofcontents List of Contents
Abstract i
List of contents ii
List of tables vi
List of figures Ⅴ




Ⅰ. Introduction

Ⅱ. Materials and Methods
2.1 Participants 6
2.2 Olfactory stimuli 8
2.3 Working memory task 10
2.3.1 3-back task
2.4 Survey ratings 12
2.4.1 Odor perception survey
2.5 fNIRS recording 12
2.6 Experimental procedure 14
2.7 Hemodynamic signal preprocessing 17
2.8 Statistics 18

Ⅲ. Results
3.1 Odor perception survey 19
3.2 Working memory performance in the 3-back task 24
3.2.1 Accuracy 26
3.2.2 Reaction time 28
3.3 Odor-dependent changes in prefrontal hemodynamic responses 30
3.4 Hemodynamic responses according to 3-back task accuracy 32



Ⅳ. Discussion
4.1 Understanding the effects of olfactory stimuli on working memory performance 35
4.2 Understanding odor-dependent changes in prefrontal hemodynamic responses 39
4.3 Limitations and future perspectives 42

Ⅴ. Conclusion 44

Ⅵ. References 46

Ⅶ. Summary 48		 -
dc.format.extent 49 -
dc.language eng -
dc.publisher DGIST -
dc.title Effects of Olfactory Stimuli on Working Memory Performance and Prefrontal Cortex Activation -
dc.type Thesis -
dc.identifier.doi 10.22677/THESIS.200001014559 -
dc.description.degree Master -
dc.contributor.department Department of Brain Sciences -
dc.contributor.coadvisor Ji-Woong Choi -
dc.date.awarded 2026-08-01 -
dc.publisher.location Daegu -
dc.description.database dCollection -
dc.citation XT.BM 안66 202608 -
dc.date.accepted 2026-07-21 -
dc.contributor.alternativeDepartment 뇌과학과 -
dc.subject.keyword olfactory stimulation, working memory, 3-back task, functional near-infrared spectroscopy [fNIRS], prefrontal hemodynamic response -
dc.contributor.affiliatedAuthor Yujin Ahn -
dc.contributor.affiliatedAuthor Cheil Moon -
dc.contributor.affiliatedAuthor Ji-Woong Choi -
dc.contributor.alternativeName 안유진 -
dc.contributor.alternativeName Cheil Moon -
dc.contributor.alternativeName 최지웅 -
dc.rights.embargoReleaseDate 2027-08-31 -
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