Title

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

DGIST Authors

Yujin Ahn ; Cheil Moon ; Ji-Woong Choi

Advisor

문제일

Co-Advisor(s)

Ji-Woong Choi

Issued Date

2026

Awarded Date

2026-08-01

Type

Thesis

Description

olfactory stimulation, working memory, 3-back task, functional near-infrared spectroscopy [fNIRS], prefrontal hemodynamic response

Table Of Contents

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

URI

https://scholar.dgist.ac.kr/handle/20.500.11750/60765
http://dgist.dcollection.net/common/orgView/200001014559

DOI

10.22677/THESIS.200001014559

Degree

Master

Department

Department of Brain Sciences

Publisher

DGIST

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