Influence on Brain Activity During and after a Study Break Using Different Types of Music

Moriya, Kazuyoshi; Ishigaki, Shiita; Ezaki, Nobuo; Kurimoto, Ikusaburou; Nakagawa, Masahiro

doi:10.12792/icisip2017.030

Cited by 4 publications

(5 citation statements)

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“…In Experiment A (Exp-A), the 2D video was displayed after the 3D-VR video, and in Experiment B (Exp-B), the 3D-VR video was displayed after the 2D video. ECGs were recorded throughout the 7-min experiment using a Holter ECG recorder (RAC-3502, Nihon Koden Ltd.) [6] [7]. To avoid first impression bias from the videos (2D or 3D-VR), half of the subjects (four subjects) completed Exp-A, followed by Exp-B (hereinafter referred to as Group I).…”

Section: Methodsmentioning

confidence: 99%

“…This study estimated the subject's mental states (relaxation, excitement, enjoyment, and anxiety) during and between viewing 2D and 3D-VR roller coaster videos by metrics reflecting autonomic nervous system activity. First, autonomic nervous system activity was evaluated from the frequency component of the power spectrum of heart rate (HR) fluctuation [7] [10]. IHR was then determined from ECG data based on the time interval of adjacent R waves.…”

Section: Analysis Of Autonomic Nervous System Activitiesmentioning

confidence: 99%

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Is Viewing Roller Coaster Video in 3D-virtual Reality More Impressive than 2D Video?

Moriya

Chiba

Maruyama

et al. 2023

JIIAE

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Scientists have hypothesized that three-dimensional virtual reality (3D-VR) entertainment provides greater enjoyment than the media experienced in a two-dimensional (2D) environment. This result can improve the life quality of patients, particularly for long-term hospitalized patients. To evaluate this hypothesis, the instantaneous heart rate (IHR) of eight subjects was monitored by electrocardiography using a Holter ECG as a measure of autonomic nervous system activity level while viewing a two-minute roller coaster video in 2D and 3D-VR (using an Oculus Rift). Each subject watched videos in both 2D and 3D-VR in varying order with at least 10-min intervals. After watching the videos, the subjects completed a questionnaire that included questions about their 2D vs. 3D-VR preferences. Subjective enjoyment was also estimated according to the visual analog scale (VAS). The results showed that the 3D-VR environment, closer to the actual environment, induced more excitement and enjoyment. This was evidenced by the difference in sympathetic nervous system activity (P < 0.01) while viewing 2D and 3D-VR videos. In particular, when the 3D-VR was observed before the 2D video, the subjects enjoyed the 3D-VR experience, as demonstrated by larger IHR accelerations. However, the differences were found to depend on whether the subjects liked or disliked roller coasters. In addition, two subjects experienced motion sickness with visual fatigue due to parallax. Finally, one subject felt both enjoyment and motion sickness simultaneously. Therefore, it was difficult to categorize the cause of sympathetic nervous system activity for this subject. In addition, for some subjects, the questionnaire responses (including VAS estimation) were inconsistent with sympathetic nervous system activity. Therefore, additional bio-signals (e.g., brain activity or salivary amylase activity) need to be analyzed in parallel to further evaluate the physical response of each subject. In future studies, it would be desirable to use the videos of lighter activities, such as hiking or riding a Ferris wheel (at moderate altitudes), that more people prefer.

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Section: Methodsmentioning

confidence: 99%

Section: Analysis Of Autonomic Nervous System Activitiesmentioning

confidence: 99%

Is Viewing Roller Coaster Video in 3D-virtual Reality More Impressive than 2D Video?

Moriya

Chiba

Maruyama

et al. 2023

JIIAE

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show abstract

“…The experiment was repeated twice on each subject with the viewing order reversed; the 3D-VR video was followed by the 2D video in experiment A (Exp-A), and the 2D video was followed by the 3D-VR video in experiment B (Exp-B). ECG was recorded during the whole 7 min experiment using a Holter ECG recorder (RAC-3502, Nihon Koden Ltd.) (6) (7) . In order to avoid the bias of the first impression from the video (2D or 3D-VR), half of the subjects (for subjects) completed Exp-A followed by Exp-B as Group I , and the other half completed Exp-B followed by Exp-A as Group II.…”

Section: Methodsmentioning

confidence: 99%

“…In this study, the mental states (i.e., relaxation, excitement, enjoyment, anxiety) of the subject while watching the 2D and 3D-VR roller coaster videos and between the videos were estimated according to metrics that reflect the autonomic nervous system activity. The autonomic nervous system activity was evaluated based on the frequency component of the power spectrum of the heart rate (HR) fluctuations (7) (10) . Then, the IHR was determined based on the time intervals of the adjacent R waves from the ECG data.…”

Section: Analysis Of Autonomic Nervous System Activitiesmentioning

confidence: 99%

Comparison of Autonomic Nervous System Activities when Viewing a Roller Coaster Video in 2D and 3D-Virtual Reality

Moriya¹,

Chiba²,

Maruyama³

et al. 2022

The Proceedings of the 9th International Conference on Intelligent Systems and Image Processing 2022

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Researchers hypothesized that entertainment via threedimensional virtual reality (3D-VR) provides greater enjoyment than the same media experienced in a twodimensional (2D) environment. This result can improve the quality of life of patients, particularly those who are hospitalized for long periods. To test this hypothesis, the instantaneous heart rates (IHRs) of eight subjects were monitored by electrocardiography using a Holter ECG as a measure of the autonomic nervous system activity levels when viewing a two-minute roller coaster video in 2D and 3D-VR (using an Oculus Rift). Each subject viewed the video in both 2D and 3D-VR in varying order with at least a 10 min interval between them; after viewing the video, they responded to a questionnaire that included questions about the subject's preference for 2D versus 3D-VR. In addition, subjective estimation of enjoyment was conducted according to the visual analog scale (VAS). Results show that the 3D-VR environment, which is closer to a real environment, elicited more excitement and enjoyment, as evidenced by the difference in the sympathetic nervous system activity (P < 0.01) when viewing the 2D and 3D-VT videos. The subjects particularly enjoyed the 3D-VR experience when it was observed before the 2D video, as demonstrated by larger IHR accelerations. However, the difference depended on whether the subjects liked roller coasters or not. In addition, two subjects experienced motion sickness, which is associated with visual fatigue due to parallax. One subject reported simultaneously feeling enjoyment and motion sickness; therefore, categorizing the cause of this subject's sympathetic nervous system activity was difficult. Additionally, for some of the subjects, the questionnaire responses (including the VAS estimation) were inconsistent with the sympathetic nervous system activity. Therefore, additional bio-signals (e.g., brain activity or salivary amylase activity) should be analyzed in parallel, to further evaluate the subject's physical response. In future studies, a video of a lighter activity that is more broadly liked by people, such as hiking or a riding a Ferris wheel with a moderate altitude, should be used.

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“…Normalized HF components (%HF), represents the ratio of HF component to HF + LF and is used as an index of parasympathetic nervous system activity and reduces influence from very low frequency component. Each component was calculated by a numerical integration (10,13) . In General, in chick embryo, parasympathetic nervous function develops from around Day-14, and sympathetic nervous function develops from around Day-16 (6) .…”

Section: Autonomic Nervous System Activitymentioning

confidence: 99%

Heart Rate Responses to Acoustic Stimuli in Prenatal Chick Embryos

Moriya

Chiba

Maruyama

2018

Proceedings of the 6th IIAE International Conference on Industrial Application Engineering 2018

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Changes of heart rate fluctuations (HRFs), which are HR variabilities and HR irregularities with various periods (e.g., in several beats, in a minute, 20-60 min (i.e. ultradian rhythms), and daily rhythms (i.e. circadian rhythms)), and autonomic nervous system activities in the prenatal chick embryos exposed to acoustic stimuli (classical and rock music, and hatchlings cheeps) were investigated. As a result, although frequency of HRFs in the rock music period were higher compared with the classical music, distinctive changes of autonomic nervous system activities were not observed in both music. In addition, characteristic HR responses and autonomic nervous activities in the cheep sound period also did not occur. A direct influence of acoustic stimuli might appear after hatching, or in prenatal embryo, vibrations with other eggs caused by the hatching activity might affect physiological functions compared with acoustic stimuli. Further experiments under other stimuli (e.g., vibration, maternal heart beat sound) are required.

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Influence on Brain Activity During and after a Study Break Using Different Types of Music

Cited by 4 publications

References 0 publications

Is Viewing Roller Coaster Video in 3D-virtual Reality More Impressive than 2D Video?

Is Viewing Roller Coaster Video in 3D-virtual Reality More Impressive than 2D Video?

Comparison of Autonomic Nervous System Activities when Viewing a Roller Coaster Video in 2D and 3D-Virtual Reality

Heart Rate Responses to Acoustic Stimuli in Prenatal Chick Embryos

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