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Evaluation of Fear Using Nonintrusive Measurement of Multimodal Sensors.

Choi JS, Bang JW, Heo H, Park KR - Sensors (Basel) (2015)

Bottom Line: Further, the latter causes inconvenience to the user due to the sensors attached to the body.Among various emotions, the accurate evaluation of fear is crucial in many applications, such as criminal psychology, intelligent surveillance systems and the objective evaluation of horror movies.Therefore, we propose a new method for evaluating fear based on nonintrusive measurements obtained using multiple sensors.

View Article: PubMed Central - PubMed

Affiliation: Division of Electronics and Electrical Engineering, Dongguk University, 26 Pil-dong 3-ga, Jung-gu, Seoul 100-715, Korea. jjongssuk@dgu.edu.

ABSTRACT
Most previous research into emotion recognition used either a single modality or multiple modalities of physiological signal. However, the former method allows for limited enhancement of accuracy, and the latter has the disadvantages that its performance can be affected by head or body movements. Further, the latter causes inconvenience to the user due to the sensors attached to the body. Among various emotions, the accurate evaluation of fear is crucial in many applications, such as criminal psychology, intelligent surveillance systems and the objective evaluation of horror movies. Therefore, we propose a new method for evaluating fear based on nonintrusive measurements obtained using multiple sensors. Experimental results based on the t-test, the effect size and the sum of all of the correlation values with other modalities showed that facial temperature and subjective evaluation are more reliable than electroencephalogram (EEG) and eye blinking rate for the evaluation of fear.

No MeSH data available.


Related in: MedlinePlus

Ratios of delta band to beta band of EEG data before and after watching the video clip of emotionally-neutral content to the subjects.
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sensors-15-17507-f020: Ratios of delta band to beta band of EEG data before and after watching the video clip of emotionally-neutral content to the subjects.

Mentions: Figure 20 shows the comparison of the measured delta band to beta band ratio of the EEG signal before and after watching the video clip of emotionally-neutral content to the subjects. In previous research [39,40], the occipital lobe has been reported as the visual processing center of the brain, and the electrodes of O1 and O2 can measure the EEG signals on this occipital lobe based on the international 10–20 system of electrode placement, shown in Figure 4b [26]. In addition, the change of the delta band to beta band ratio of the O1 node was used in previous experiments of measuring the fear emotion due to its lowest p-value, as shown in Table 7. Therefore, the change of the delta band to beta band ratio of the O1 node is also compared in the experiment using the video clip of neutral content. The same scale of EEG signal was used for a fair comparison. As shown in Figure 20, the average value (about 1.23) of the change of the delta band to beta band ratio (O1 node) after watching the video clip was similar to that (about 1.27) before watching the video clip. However, the average value (about 0.94) of the change of the delta band to beta band ratio (O1 node) after watching the horror movie was much different from that (about 1.12) before watching the horror movie, as shown in Figure 16. From this, we can find that the difference (about 0.18) between the average values of the change of the delta band to beta band ratio (O1 node) before and after watching the horror movie is much larger than that (about 0.04) before and after watching the video clip of neutral emotion.


Evaluation of Fear Using Nonintrusive Measurement of Multimodal Sensors.

Choi JS, Bang JW, Heo H, Park KR - Sensors (Basel) (2015)

Ratios of delta band to beta band of EEG data before and after watching the video clip of emotionally-neutral content to the subjects.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4541947&req=5

sensors-15-17507-f020: Ratios of delta band to beta band of EEG data before and after watching the video clip of emotionally-neutral content to the subjects.
Mentions: Figure 20 shows the comparison of the measured delta band to beta band ratio of the EEG signal before and after watching the video clip of emotionally-neutral content to the subjects. In previous research [39,40], the occipital lobe has been reported as the visual processing center of the brain, and the electrodes of O1 and O2 can measure the EEG signals on this occipital lobe based on the international 10–20 system of electrode placement, shown in Figure 4b [26]. In addition, the change of the delta band to beta band ratio of the O1 node was used in previous experiments of measuring the fear emotion due to its lowest p-value, as shown in Table 7. Therefore, the change of the delta band to beta band ratio of the O1 node is also compared in the experiment using the video clip of neutral content. The same scale of EEG signal was used for a fair comparison. As shown in Figure 20, the average value (about 1.23) of the change of the delta band to beta band ratio (O1 node) after watching the video clip was similar to that (about 1.27) before watching the video clip. However, the average value (about 0.94) of the change of the delta band to beta band ratio (O1 node) after watching the horror movie was much different from that (about 1.12) before watching the horror movie, as shown in Figure 16. From this, we can find that the difference (about 0.18) between the average values of the change of the delta band to beta band ratio (O1 node) before and after watching the horror movie is much larger than that (about 0.04) before and after watching the video clip of neutral emotion.

Bottom Line: Further, the latter causes inconvenience to the user due to the sensors attached to the body.Among various emotions, the accurate evaluation of fear is crucial in many applications, such as criminal psychology, intelligent surveillance systems and the objective evaluation of horror movies.Therefore, we propose a new method for evaluating fear based on nonintrusive measurements obtained using multiple sensors.

View Article: PubMed Central - PubMed

Affiliation: Division of Electronics and Electrical Engineering, Dongguk University, 26 Pil-dong 3-ga, Jung-gu, Seoul 100-715, Korea. jjongssuk@dgu.edu.

ABSTRACT
Most previous research into emotion recognition used either a single modality or multiple modalities of physiological signal. However, the former method allows for limited enhancement of accuracy, and the latter has the disadvantages that its performance can be affected by head or body movements. Further, the latter causes inconvenience to the user due to the sensors attached to the body. Among various emotions, the accurate evaluation of fear is crucial in many applications, such as criminal psychology, intelligent surveillance systems and the objective evaluation of horror movies. Therefore, we propose a new method for evaluating fear based on nonintrusive measurements obtained using multiple sensors. Experimental results based on the t-test, the effect size and the sum of all of the correlation values with other modalities showed that facial temperature and subjective evaluation are more reliable than electroencephalogram (EEG) and eye blinking rate for the evaluation of fear.

No MeSH data available.


Related in: MedlinePlus