Park, Wanjoo Kim, Da-Hye Kim, Sung-Phil Lee, Jong-Hwan Kim, Laehyun 2024-01-19T23:02:30Z 2024-01-19T23:02:30Z 2021-09-03 2018-04 2169-3536 https://pubs.kist.re.kr/handle/201004/121518 Consumers often develop preferences toward consumer electronics based not only on the visual appearance of a product, but also on its haptic interface. If consumers express a strong haptic preference for a consumer electronic product, they are more likely to purchase it. Hence, it is important to understand how consumers' haptic preference for consumer electronics is formed. Conventional paper-based methods may not provide sufficient information for this purpose, because they provide post-event (i.e., after haptic experience) and environment-dependent (i.e., depending on the manner of asking questions, the person asking the questions, and so on.) data. Therefore, the present study investigated haptic preferences for consumer electronics using neural responses during haptic experiences, which provide the advantage of observing changes while the user is manipulating the product and obtaining environment-independent data. We measured neural responses using non-invasive electroencephalography (EEG). Eighteen volunteers participated in the study and manipulated a haptic dial knob that generates four different haptic profiles; during the manipulation, their EEG signals were recorded. After experiencing different haptic profiles, participants reported their level of preference for each profile. The analysis of EEG revealed that frontal gamma oscillations correlate with the level of haptic preferences, with oscillations becoming stronger with increasing haptic preference. The highest correlation between frontal gamma power and haptic preference was found in the early period of the dial task. Therefore, the frontal gamma oscillation of the EEG may represent a neural correlate of the haptic preference and provides a neural basis for understanding this preference in relation to consumer electronics. English IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC BAND ACTIVITY BRAND PREFERENCE BRAIN ACTIVITY OSCILLATIONS ASYMMETRY PRODUCT PERCEPTION JUDGMENTS Gamma EEG Correlates of Haptic Preferences for a Dial Interface Article 10.1109/ACCESS.2018.2827023 1 IEEE ACCESS, v.6, pp.22324 - 22331 IEEE ACCESS 6 22324 22331 scie scopus 000432576500001 2-s2.0-85045767848 Computer Science, Information Systems Engineering, Electrical & Electronic Telecommunications Computer Science Engineering Telecommunications Article BAND ACTIVITY BRAND PREFERENCE BRAIN ACTIVITY OSCILLATIONS ASYMMETRY PRODUCT PERCEPTION JUDGMENTS Electroencephalography (EEG) haptic interfaces brain computer interfaces