Differences in Beta Oscillation of the Middle Frontal Cortex with or Without Tactile Stimulation in Active Touch Task

Park, Wanjoo; Eid, Mohamad

doi:10.1007/978-3-319-93445-7_3

Cited by 2 publications

(2 citation statements)

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“…The middle frontal/parietal area and the bilateral parietal area were selected as the regions of interest. In our previous study, friction feedback showed not only sensation but also gamma power difference in the middle frontal cortex (Park and Eid, 2018). Therefore, we expected significant differences in this region.…”

Section: Methodsmentioning

confidence: 84%

“…In our previous work (Park and Eid, 2018), we introduced the first study to examine the role of tactile stimulation objectively and quantitatively in an active touch task representing natural interaction with a touch-screen device. Results demonstrated a significant difference in beta oscillation in the middle frontal area at the late period of the active touch task (650–1,000 ms) is measured.…”

Section: Introductionmentioning

confidence: 99%

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Neural Activations Associated With Friction Stimulation on Touch-Screen Devices

2019

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Tactile sensation largely influences human perception, for instance when using a mobile device or a touch screen. Active touch, which involves tactile and proprioceptive sensing under the control of movement, is the dominant tactile exploration mechanism compared to passive touch (being touched). This paper investigates the role of friction stimulation objectively and quantitatively in active touch tasks, in a real human-computer interaction on a touch-screen device. In this study, 24 participants completed an active touch task involved stroking the virtual strings of a guitar on a touch-screen device while recording the electroencephalography (EEG) signal. Statistically significant differences in beta and gamma oscillations in the middle frontal and parietal areas at the late period of the active touch task are found. Furthermore, stronger beta event-related desynchronization (ERD) and rebound in the presence of friction stimulation in the contralateral parietal area are observed. However, in the ipsilateral parietal area, there is a difference in beta oscillation only at the late period of the motor task. As for implicit emotion communication, a significant increase in emotional responses for valence, arousal, dominance, and satisfaction is observed when the friction stimulation is applied. It is argued that the friction stimulation felt by the participants' fingertip in a touch-screen device further induces cognitive processing compared to the case when no friction stimulation is applied. This study provides objective and quantitative evidence that friction stimulation is able to affect the bottom-up sensation and cognitive processing.

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Section: Methodsmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%