Cognitive Load Changes during Music Listening and its Implication in Earcon Design in Public Environments: An fNIRS Studyopen access
- Authors
- Jeong, Eunju; Ryu, Hokyoung; Jo, Geonsang; Kim, Jaehyeok
- Issue Date
- Oct-2018
- Publisher
- MDPI
- Keywords
- melody perception; contour identification; auditory attention; cognitive load; near-infrared spectroscopy; earcon design
- Citation
- INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, v.15, no.10, pp.1 - 18
- Indexed
- SCIE
SSCI
SCOPUS
- Journal Title
- INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
- Volume
- 15
- Number
- 10
- Start Page
- 1
- End Page
- 18
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/149243
- DOI
- 10.3390/ijerph15102075
- ISSN
- 1661-7827
- Abstract
- A key for earcon design in public environments is to incorporate an individual's perceived level of cognitive load for better communication. This study aimed to examine the cognitive load changes required to perform a melodic contour identification task (CIT). While healthy college students (N = 16) were presented with five CITs, behavioral (reaction time and accuracy) and cerebral hemodynamic responses were measured using functional near-infrared spectroscopy. Our behavioral findings showed a gradual increase in cognitive load from CIT1 to CIT3 followed by an abrupt increase between CIT4 (i.e., listening to two concurrent melodic contours in an alternating manner and identifying the direction of the target contour, p < 0.001) and CIT5 (i.e., listening to two concurrent melodic contours in a divided manner and identifying the directions of both contours, p < 0.001). Cerebral hemodynamic responses showed a congruent trend with behavioral findings. Specific to the frontopolar area (Brodmann's area 10), oxygenated hemoglobin increased significantly between CIT4 and CIT5 (p < 0.05) while the level of deoxygenated hemoglobin decreased. Altogether, the findings indicate that the cognitive threshold for young adults (CIT5) and appropriate tuning of the relationship between timbre and pitch contour can lower the perceived cognitive load and, thus, can be an effective design strategy for earcon in a public environment.
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Collections - 서울 기술경영전문대학원 > 서울 기술경영학과 > 1. Journal Articles
- 서울 산업융합학부 > 서울 산업융합학부 > 1. Journal Articles
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