Attention, Perception, & Psychophysics

, Volume 72, Issue 7, pp 1890–1902 | Cite as

A balancing act: Physical balance, through arousal, influences size perception

  • Michael N. Geuss
  • Jeanine K. Stefanucci
  • Justin de Benedictis-Kessner
  • Nicholas R. Stevens
Research Articles


Previous research has demonstrated that manipulating vision influences balance. Here, we question whether manipulating balance can influence vision and how it may influence vision—specifically, the perception of width. In Experiment 1, participants estimated the width of beams while balanced and unbalanced. When unbalanced, participants judged the widths to be smaller. One possible explanation is that unbalanced participants did not view the stimulus as long as when balanced because they were focused on remaining balanced. In Experiment 2, we tested this notion by limiting viewing time. Experiment 2 replicated the findings of Experiment 1, but viewing time had no effect on width judgments. In Experiment 3, participants’ level of arousal was manipulated, because the balancing task likely produced arousal. While jogging, participants judged the beams to be smaller. In Experiment 4, participants completed another arousing task (counting backward by sevens) that did not involve movement. Again, participants judged the beams to be smaller when aroused. Experiment 5A raised participants’ level of arousal before estimating the board widths (to control for potential dual-task effects) and showed that heightened arousal still influenced perceived width of the boards. Collectively, heightened levels of arousal, caused by multiple manipulations (including balance), influenced perceived width.


Neutral Picture International Affective Picture System Balance Board Unbalanced Condition Partici Pant 
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  1. Andersen, G. J., & Dyre, B. P. (1989). Spatial orientation from optic flow in the central visual field. Perception & Psychophysics, 45, 453–458.Google Scholar
  2. Bardy, B. G., Warren, W. H., & Kay, B. (1999). The role of central and peripheral vision in postural control during walking. Perception & Psychophysics, 61, 1356–1368.Google Scholar
  3. Bertenthal, B. I., & Bai, D. L. (1989). Infant sensitivity to optical flow for controlling posture. Developmental Psychology, 25, 936–949.CrossRefGoogle Scholar
  4. Bertenthal, B. I., Rose, J. L., & Bai, D. L. (1997). Perception-action coupling in the development of visual control of posture. Journal of Experimental Psychology: Human Perception & Performance, 23, 1631–1643.CrossRefGoogle Scholar
  5. Bradley, M. M., Codispoti, M., Cuthbert, B. N., & Lang, P. J. (2001). Emotion and motivation: I. Defensive and appetitive reactions in picture processing. Emotion, 1, 276–298.CrossRefPubMedGoogle Scholar
  6. Bradley, M. M., & Lang, P. (2007). The International Affective Picture System (IAPS) in the study of emotion and attention. In J. A. Coan & J. J. B. Allen (Eds.), Handbook of emotion elicitation and assessment (pp. 29–46). Oxford: Oxford University Press.Google Scholar
  7. Bradley, M. M., Miccoli, L., Escrig, M.A., & Lang, P. J. (2008). The pupil as a measure of emotional arousal and autonomic activation. Psychophysiology, 45, 602–607.CrossRefPubMedGoogle Scholar
  8. Bronstein, A. M., & Buckwell, D. (1997). Automatic control of postural sway by visual motion parallax. Experimental Brain Research, 113, 243–248.CrossRefGoogle Scholar
  9. Bruce, V., Green, P. R., & Georgeson, M. A. (2003). Visual perception: Physiology, psychology, and ecology. New York: Psychology Press.Google Scholar
  10. Budzynski, T. H., & Peffer, K. E. (1980). Biofeedback training. In I. L. Katash & L. B. Schlesinger (Eds.), Handbook on stress and anxiety (pp. 413–427). San Francisco: Jossey Bass.Google Scholar
  11. Butterworth, G., & Hicks, L. (1977). Visual proprioception and postural stability in infancy: A developmental study. Perception, 6, 255–262.PubMedGoogle Scholar
  12. Dijkstra, T. M., Schoner, G., Giese, M. A., & Gielen, C. C. (1994). Frequency dependence of the action-perception cycle for postural control in a moving visual environment: Relative phase dynamics, Biological Cybernetics, 71, 489–501.CrossRefPubMedGoogle Scholar
  13. Durgin, F. H., Baird, J. A., Greenburg, M., Russell, R., Shaughnessy, K., & Waymouth, S. (2009). Who is being deceived? The experimental demands of wearing a backpack. Psychonomic Bulletin & Review, 16, 964–969.CrossRefGoogle Scholar
  14. Edwards, A. S. (1946). Body sway and vision. Journal of Experimental Psychology, 36, 526–535.CrossRefPubMedGoogle Scholar
  15. Greenhouse, A. H. (1994). Falls among the elderly. In M. L. Albert & J. E. Knoefel (Eds.), Clinical neurology of aging (2nd ed., pp. 611–626). New York: Oxford University Press.Google Scholar
  16. Harvey, L. (1980). Patterns of response to stressful tasks. Research Bulletin of the Himalayan International Institute, 2, 4–8.Google Scholar
  17. Horak, F. B. (1987). Clinical measurement of postural control in adults. Physical Therapy, 67, 1881–1885.PubMedGoogle Scholar
  18. Kapoula, Z., & Thanh-Thuan, L. (2006). Effects of distance and gaze position on postural stability in young and old subjects. Experimental Brain Research, 173, 438–445.CrossRefGoogle Scholar
  19. Kerr, B., Condon, S. M., & McDonald, L. A. (1985). Cognitive spatial processing and the regulation of posture. Journal of Experimental Psychology: Human Perception & Performance, 11, 617–622.CrossRefGoogle Scholar
  20. Kirby, M. W. (1968). The pupil reaction in response to an unpleasant odor as an index of affect. Unpublished master’s thesis, Wake Forest University, Winston-Salem, NC.Google Scholar
  21. Kunkel, M., Freudenthaler, N., Steinhoff, B. J., Baudewig, J., & Paulus, W. (1998). Spatial-frequency-related efficacy of visual stabilization of posture. Experimental Brain Research, 121, 471–477.CrossRefGoogle Scholar
  22. Lajoie, Y., Teasdale, N., Bard, C., & Fleury, M. (1993). Upright standing and gait: Are there changes in attentional requirements related to normal aging? Experimental Aging Research, 22, 185–198.CrossRefGoogle Scholar
  23. Lang, P., Bradley, M., & Cuthbert, B. (1999). International Affective Picture System (IAPS): Technical manual and affective ratings. Gainsville: University of Florida, Center for Research in Psychophysiology.Google Scholar
  24. Lee, D. N., & Aronson, E. (1974). Visual proprioceptive control of standing in human infants. Perception & Psychophysics, 15, 529–532.Google Scholar
  25. Lee, D. N., & Lishman, J. R. (1975). Visual proprioceptive control of stance. Journal of Human Movement Studies, 1, 87–95.Google Scholar
  26. Lee, S. W., & Guck, T. P. (1990). The use of mental arithmetic (serial 7’s) as a stressor in psychophysiological stress profiling: A preliminary report. Medical Psychotherapy, 3, 97–102.Google Scholar
  27. Lord, S. R., & Ward, J. A. (1994). Age-associated differences in sensori-motor function and balance in community dwelling women. Age & Ageing, 23, 452–460.CrossRefGoogle Scholar
  28. Maki, B. E., & McIlroy, W. E. (1996). Influence of arousal and attention on the control of postural sway. Journal of Vestibular Research: Equilibrium & Orientation, 6, 53–59.Google Scholar
  29. Mark, L. S., Balliet, J. A., Graver, K. D., Douglas, S. D., & Fox, T. (1990). What an actor must do in order to perceive the affordance for sitting. Ecological Psychology, 2, 325–366.CrossRefGoogle Scholar
  30. Noteboom, T. J., Fleshner, M., & Enoka, R. M. (2001). Activation of the arousal response can impair performance on a simple motor task. Journal of Applied Physiology, 91, 821–831.PubMedGoogle Scholar
  31. Nunnally, J. C., Knott, P. D., Duchnowski, A., & Parker, R. (1967). Pupillary response as a general measure of activation. Perception & Psychophysics, 2, 149–155.Google Scholar
  32. Ohno, H., Wada, M., Saitoh, J., Sunaga, N., & Nagai, M. (2004). The effect of anxiety on postural control in humans depends on visual information processing. Neuroscience Letters, 364, 37–39.CrossRefPubMedGoogle Scholar
  33. Parker, R. K., & Mogyorosy, R. S. (1967, September). Pupillary response to induced muscular tension. Paper presented at the 75th Annual Convention of the American Psychological Association, Washington DC.Google Scholar
  34. Patrick, M. S. (1969). Pupillometry as a method of assessing stress due to noise. Southhampton, U.K.: Institute of Sound and Vibration Research.Google Scholar
  35. Paulus, W. M., Straube, A., & Brandt, T. (1984). Visual stabilization of posture: Physiological stimulus characteristics and aspects. Brain, 107, 1143–1163.CrossRefPubMedGoogle Scholar
  36. Proffitt, D. R. (2006). Embodied perception and the economy of action. Perspectives on Psychological Science, 1, 1–13.CrossRefGoogle Scholar
  37. Riccio, G. E., & Stoffregen, T. A. (1988). Affordances as constraints on the control of stance. Human Movement Science, 7, 265–300.CrossRefGoogle Scholar
  38. Russell, R., & Durgin, F. H. (2008). Demand characteristics, not effort: The role of backpacks in judging distance [Abstract]. Journal of Vision, 8(6), 755a.CrossRefGoogle Scholar
  39. Sattin, R. W. (1992). Falls among older persons: A public health perspective. Annual Reviews of Public Health, 13, 489–508.CrossRefGoogle Scholar
  40. Schneider, C. (1979). Foundations of biofeedback practice: Workshop manual. Wheat Ridge, CO: Biofeedback Society of America.Google Scholar
  41. Stefanucci, J. K., & Storbeck, J. (2009). Don’t look down: Emotional arousal elevates height perception. Journal of Experimental Psychology: General, 138, 131–145.CrossRefGoogle Scholar
  42. Stoffregen, T. A. (1985). Flow structure versus retinal location in optical control of stance. Journal of Experimental Psychology: Human Perception & Performance, 11, 554–565.CrossRefGoogle Scholar
  43. Stoffregen, T.A., Schmuckler, M. A., & Gibson, E. J. (1987). Use of central and peripheral optical flow in stance and locomotion in young walkers. Perception, 16, 113–119.CrossRefPubMedGoogle Scholar
  44. Stoffregen, T. A., Smart, L. J., Bardy, B. G., & Pagulayan, R. J. (1999). Postural stabilization of looking. Journal of Experimental Psychology: Human Perception & Performance, 25, 1641–1658.CrossRefGoogle Scholar
  45. Sturgeon, R. S. (1968). The effect of a color slide hierarchy for fear stimuli on the reduction of fear of snakes as measured by the pupillometric technique. Dissertation Abstracts, 29, 3222A-3223A.Google Scholar
  46. Tibbits, G. M. (1996). Patients who fall: How to predict and prevent injuries. Geriatrics, 51, 24–28.Google Scholar
  47. Witt, J. K., Proffitt, D. R., & Epstein, W. (2005). Tool use affects perceived distance, but only when you intend to use it. Journal of Experimental Psychology: Human Perception & Performance, 31, 880–888.CrossRefGoogle Scholar
  48. Woollacott, M., & Shumway-Cook, A. (2002). Attention and the control of posture and gait: A review of an emerging area of research. Gait & Posture, 16, 1–14.CrossRefGoogle Scholar
  49. Wright, D. B. (2007). Graphing within-subjects confidence intervals using SPSS and S-Plus. Behavior Research Methods, 39, 82–85.PubMedGoogle Scholar
  50. Yardley, L., Watson, S., Britton, J., Lear, S., & Bird, J. (1995). Effects of anxiety arousal and mental stress on the vestibulo-ocular reflex. Acta Oto-Laryngologica, 115, 597–602.CrossRefPubMedGoogle Scholar
  51. Zillman, D. (1971). Excitation transfer in communication-mediated aggressive behavior. Journal of Experimental Social Psychology, 7, 419–434.CrossRefGoogle Scholar

Copyright information

© The Psychonomic Society, Inc 2010

Authors and Affiliations

  • Michael N. Geuss
    • 1
  • Jeanine K. Stefanucci
    • 1
  • Justin de Benedictis-Kessner
    • 2
  • Nicholas R. Stevens
    • 2
  1. 1.Department of PsychologyUniversity of UtahSalt Lake City
  2. 2.College of William and MaryWilliamsburg

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