시각적 착시에 의한 지각된 난이도 변화가 동작 수행에 미치는 영향 = The Influence to Motor Performance by Index of Difficulty Changes under Visual Illusion

다국어 초록 (Multilingual Abstract)

Purpose: The purpose of this study was to investigate how the perceived difficulty change by visual illusion affects performance. Methods: Participants in this study consisted of 8 persons (6 males and 2 females) with normal or corrected vision, with the dominant hand on the right. Participants performed verbal judgment tasks, judgment motor tasks, and continuous motor tasks. Inverted-T figures with difficulty levels of 5 cm, 10 cm, and 20 cm were randomly presented for each task. The verbal judgment task was designed to express the shape of a horizontal line and a vertical line that looked long after showing the figure. Judgment motor task was to measure to present the distance between the horizontal line and the vertical line by opening the tip of the stick’s markers. Continuous motor task was to tap a given target 40 times with maximum speed. Results: As a result of the verbal judgement task, all eight participants said that the vertical line was long. In the judgment motor task, five participants judged that the vertical line was longer than the horizontal line. Conversely, three participants stated that the horizontal line was longer than the vertical line. In the continuous motor task, the visual illusion did not appear to affect the continuous movement. On the other hand, as the difficulty index increased, movement time was increased. Conclusion: The vertical line of Inverted-T was perceived as longer one in the perceptual judgement task, but no difference was found in continuous motor task between horizontal line and vertical line of Inverted-T, suggesting that visual illusion of inverted-T did not affect the motor performance of continuous motor task.

참고문헌 (Reference)

1 김선진, "운동학습과 제어" 도서출판 대한미디어 2009

2 Eagleman, D. M., "Visual illusions and neurobiology" 2 (2): 920-, 2001

3 Schneider, G. E., "Two visual systems"

4 Trevarthen, C. B., "Two mechanisms of vision in primates" 31 (31): 299-337, 1968

5 Servos, P., "The visuomotor system resists the Horizontal-vertical illusion" 32 (32): 400-404, 2000

6 Van Beers, R. J., "The role of execution noise in movement variability" 91 (91): 1050-1063, 2004

7 Goodale, M. A., "The objects of action and perception" 67 (67): 181-207, 1998

8 Fitts, P. M., "The information capacity of the human motor system in controlling the amplitude of movement" 47 (47): 381-, 1954

9 Haffenden, A. M., "The effect of pictorial illusion on prehension and perception" 10 (10): 122-136, 1998

10 Haffenden, A. M., "The dissociation between perception and action in the Ebbinghaus illusion : Nonillusory effects of pictorial cues on grasp" 11 (11): 177-181, 2001

11 Meegan, D. V., "The Müller-Lyer illusion affects the planning and control of manual aiming movements" 155 (155): 37-47, 2004

12 Aglioti, S., "Size-contrast illusions deceive the eye but not the hand" 5 (5): 679-685, 1995

13 Goodale, M. A., "Separate visual pathways for perception and action" 15 (15): 20-25, 1992

14 van Donkelaar, P., "Pointing movements are affected by size-contrast illusions" 125 (125): 517-520, 1999

15 Faisal, A. A., "Noise in the nervous system" 9 (9): 292-, 2008

16 Franz, V. H., "Manual size estimation : a neuropsychological measure of perception?" 151 (151): 471-477, 2003

17 Skewes, J. C., "How do illusions constrain goal-directed movement : perceptual and visuomotor influences on speed/accuracy trade-off" 209 (209): 247-255, 2011

18 Franz, V. H., "Grasping visual illusions : No evidence for a dissociation between perception and action" 11 (11): 20-25, 2000

19 Franz, V. H., "Grasp effects of the Ebbinghaus illusion : obstacle avoidance is not the explanation" 149 (149): 470-477, 2003

20 Franz, V. H., "Effects of visual illusions on grasping" 27 (27): 1124-, 2001

21 Glover, S., "Dynamic effects of the Ebbinghaus illusion in grasping : Support for a planning/control model of action" 64 (64): 266-278, 2002

22 Mishkin, M., "Contribution of striate inputs to the visuospatial functions of parietopreoccipital cortex in monkeys" 6 (6): 57-77, 1982

23 Alphonsa, S., "Combined visual illusion effects on the perceived index of difficulty and movement outcomes in discrete and continuous fitts’ tapping" 80 (80): 55-68, 2016

24 Solso, R. L., "Cognitive psychology" Allyn and Bacon 2001

25 Pavani, F., "Are perception and action affected differently by the Titchener circles illusion?" 127 (127): 95-101, 1999

26 Coren, S., "An efferent component in the visual perception of direction and extent" 93 (93): 391-, 1986

27 Künnapas, T. M., "An analysis of the"vertical-horizontal illusion. "" 49 (49): 134-, 1955