IPSJ SIG Technical Report Vol.2011-UBI-30 No /5/ , 1 1 Evaluation on Effect of Presenting False Information for Biological Information Vi

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1 1 1 1, 1 1 Evaluation on Effect of Presenting False Information for Biological Information Visualization Systems Kenji Nakamura, 1 Takuya Katayama, 1 Tsutomu Terada 1, 1 and Masahiko Tsukamoto 1 Recentry, the increase of concern on health care services leads many proposals on health management services that present real-time biological information as the spread of wearable computing. These services make people judge their condition from the presented biological information. On the other hand, in medical field, the placebo effect is well known, which is the effect that people s condition is influenced by sham medical invention. In this research, we propose a system that controls biological information by presenting false information to realize placebo effects. From the results of experimental evaluation, we confirmed that there is a possibility that we can control the heart rate by presenting false information. 1. 1) 3 2) 1 Graduate School of Engineering, Kobe University 1 Presently with PRESTO, Japan Science and Technology Agency 1 c 11 Information Processing Society of Japan

2 ),4) 5) LifeMinder 6) GSR: Galvanic Skin Reflex Asada 7) 8) 9) 2 Iwasaki Affectphone 1) GSR 11) 2. 12) T. J. Kaptchuk 13) c 11 Information Processing Society of Japan

: 生体情報 : 生体情報平常値 ( 操作なし ) : 虚偽情報平常値 ( 操作なし ) : 虚偽情報 : 期待される生体情報 : 期待される生体情報 2 3 1 Fig. 2 Hiding Fig. 3 Relaxation Fig. 1 System configuration 3.1 3.2 4 ( 1 ) : 2 平常値 4 Fig.

3 : 生体情報 : 生体情報平常値 ( 操作なし ) : 虚偽情報平常値 ( 操作なし ) : 虚偽情報 : 期待される生体情報 : 期待される生体情報 Fig. 2 Hiding Fig. 3 Relaxation Fig. 1 System configuration ( 1 ) : 2 平常値 4 Fig. 4 Keeping : 生体情報 ( 操作なし ) : 虚偽情報 : 期待される生体情報平常値 5 Fig. 5 Raising : 生体情報 ( 操作なし ) : 虚偽情報 : 期待される生体情報 ( 2 ) : 3 ( 3 ) : 4 ( 4 ) : c 11 Information Processing Society of Japan

4 Wizard-of-Oz 14) Wizard-of-Oz Wizard. GM3 RF- ECG 15) rpm rotation per minute rpm rpm Table 1 Contents of exercising 1 1 (rpm) 5 1 (rpm)+ 2 1 (rpm) 5 1 (rpm) 3 1 (rpm) 5 1 (rpm) 4 1 (rpm) 5 1 (rpm)+ rpm 休憩操作量 [bpm] 時間 [sec] 時間 rpm 1 分 5 分 1 分本来の生体情報提示した虚偽情報操作量 6 ( A 1 ) Fig. 6 Change in heart rate (first trial for participant A) rpm rpm A c 11 Information Processing Society of Japan

5 2 Table 2 Change in heart rate in exercising rpm rpm rpm rpm rpm rpm rpm rpm A B C D E ( 1 ) 1 rpm 1 rpm rpm t D 2 p=3.7e-2 3 p=1.14e-2 4 p=3.68e D B E ( 2 ) 4 rpm 4 rpm rpm t A 1 p=1.41e-6 2 p=5.75e-5 3 p=6.47e-4 B 1 p=2.22e-19 2 p=7.9e-6 3 p=4.46e-6 E 1 p=3.78e-2 3 p=1.3e D 1 p=3.36e-7 2 p=1.55e-1 3 p=3.64e ( 3 ) 4 A B E 1 3 D C 5 c 11 Information Processing Society of Japan

6 A B A 発表前発表中質疑中時間 [sec.] 時間本来の心拍数 7 A (1 ) Fig. 7 Change in heart rate of participant A at the first trial 1 1 発表前発表中質疑中 5 15 時間 [sec] 時間本来の心拍数 9 B (1 ) Fig. 9 Change in heart rate of participant B at the first trial 発表前発表中質疑中時間 [sec.] 時間操作量提示した虚偽情報本来の心拍数操作量操作量 [bpm] 8 A (2 ) Fig. 8 Change in heart rate of participant A at the second trial 心拍数 1 1 発表前発表中質疑中操作量時間 [sec] 提示した虚偽情報本来の心拍数操作量操作量 [bpm] 1 B (2 ) Fig. 1 Change in heart rate of participant B at the second trial A 2 A B c 11 Information Processing Society of Japan

7 3 4 Table 3 Change in heart rate in presentation for presenter A Table 4 Change in heart rate in presentation for presenter B : : : : : : :.21 : : : : A B 3 4 ( 1 ) 1 2 A , B A B B t A -.1 p=.6 A 4 A t A -.1 p= ( 2 ). 1 2 B : : : : : : : : : : : : : : : : : : : : : : : : : : : t p= A bpm bpm B 1 144bpm bpm 21.33bpm 7 c 11 Information Processing Society of Japan

8 A 9 System Using User s Context, Proc. of IEEE International Workshop on Smart Appliances and Wearable Computing (IWSAWC 2), pp , 2. 7) H. H. Asada, A. T. Reisner, P. A. Shaltis, D. B. McCombie, Towards the Development of Wearable Blood Pressure Sensors: A Photo-Plethysmograph Approach, Proc. of IEEE Engineering in Medicine and Biology Conference (EMBC 5), pp , 5. 8),,,,, :, 8 (FIT9), M-41, pp , 9. 9),,,,, :,, Vol., No. 4, pp , 1. 1),, : AffectPhone:, 1, SA1, 1. 11) M. Yasushi and M. Yanagidaira: Estimating Sleepiness during Expressway Driving, Journal of International Society of Life Information Science, Vol. 21, No. 2, pp , 3. 12), :,, Vol. 7, No. 1, pp , 5. 13) T. J. Kaptchuk, E. Friedlander, J. M. Kelley, M. N. Sanchez, E. Kokkotou, J. P. Singer, M. Kowalczykowski, F. G. Miller, I. Kirsch, and A. J. Lembo: Placebos without Deception: A Randomized Controlled Trial in Irritable Bowel Syndrome, PLoS One, Vol. 5, No. 12, Published online, 8. 14), : Wizard of Oz Web,, Vol. 17, No. 3, pp , 2. 15) RF-ECG, available from 1), available from 2) : : Placebo,, Vol. 2, pp , ) L. Bao and S. S. Intille: Activity Recognition from User-Annotated Acceleration Data, Proc. of International Conference on Pervasive Computing (Pervasive4), pp ),,, :,, Vol. 51, No. 3, pp , 1. 5),,, : Life2Guard:, (USN, ), Vol. 18, No. 399, pp , 9. 6) K. Ouchi, T. Suzuki, and M. Doi: LifeMinder: A Wearable Healthcare Support 8 c 11 Information Processing Society of Japan

IPSJ SIG Technical Report Vol.2012-HCI-149 No /7/20 1 1,2 1 (HMD: Head Mounted Display) HMD HMD,,,, An Information Presentation Method for Weara

IPSJ SIG Technical Report Vol.2012-HCI-149 No /7/20 1 1,2 1 (HMD: Head Mounted Display) HMD HMD,,,, An Information Presentation Method for Weara 1 1,2 1 (: Head Mounted Display),,,, An Information Presentation Method for Wearable Displays Considering Surrounding Conditions in Wearable Computing Environments Masayuki Nakao 1 Tsutomu Terada 1,2 Masahiko