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The effects of fixation, attention, and report on the frequency and duration of visual disappearances

Harnad, S. (1969) The effects of fixation, attention, and report on the frequency and duration of visual disappearances. Masters thesis, McGill University.

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Abstract

Subjects viewed steadily two luminous dots with various instructions as to where to fixate and attend, and what disappearances to report. An analysis of the results showed that the frequency and duration of disappearances was significantly influenced by fixation,attention, and report. A control indicated that the attention effect was not simply due to missing unattended events. It was suggested that these uncontrolled factors might have confounded some of the visual disappearance research results and that attention might be the primary determinant of the meaningful perceptual unit effect.

Item Type:Thesis
Creator/Authors:
Stevan Harnad
Keywords:attention, perception, vision, stabilized images, fatigue, fixation, report, consciousness, awareness, activation
Research Group:Current ECS Groups > Web and Internet Science
Old ECS Groups > Intelligence, Agents, Multimedia
Alternative Locations:http://digitool.library.mcgill.ca/webclient/Stream...
Date:April 1969
Information about this record:
Performance Indicator:EZ~01~01~17
ID Code:22993
Last Modified:11 Nov 2011 12:05
Deposited On:10 Nov 2011 23:33 by Harnad, Stevan

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References in Article

Select the SEEK icon to attempt to find the referenced article. If it does not appear to be in this archive you will be forwarded to the paracite service. Poorly formated references will probably not work.

Dicara, L., & Barmack, J. E. The effect of reporting procedures on the stabilized retinal image. Paper read at Eastern Psychological Association, Atlantic City, April, 1962.

Donderi, D. C., & Kane, Eleanor. Perceptual learning produced by common responses to different stimuli. Canadian Journal of Psychology, 1965, 19, 15-30.

Farde, J. J., Piggins, D. J., & Mackinnon, G. E. Fragmentation and regeneration, of retinal images. Paper delivered at 27th Annual Meeting of the Canadian Psychological Association, 1960.

Harnad, S. R. Partial disappearances of luminous forms and after-images. Unpublished undergraduate honors thesis, Psychology, McGill University, 1967.

Hari, J. Luminous figures: influence of point of fixation on their disappearance. Science, 1964, 143, 1193-1194.

Hebb, D. O. The semi-autonomous process: Its nature and nurture. American Psychologist, 1963,,18, 16-27.

Heron, W. Percept i on as a function of retinal locus and attention. American Journal of Psychology, 1957, 70, 38-48.

McKinney, J. P. Disappearance of luminous designs. Science, 1963, 140, 403-404.

Orbach, J. Differential recognition of Hebrew and English words in right and left visual fields as a function of cerebral dominance and reading habits. Neuropsychologia, 1967, 5, 127-134.

Pritchard, R. M. Stabilized images on the retina. Scientific American, 1961, 204, 72-78.

Pritchard, R. M., Heron, W., & Hebb, D. O. Visual perception approached by the method of stabilized images. Canadian Journal of Psychology, 1960, 14, 67-77.

Schwartz, M. The effects of attention on the disappearance of luminous figures. Unpublished undergraduate honors thesis, Psychology, McGill University, 1964.

Watanabe, M, K Cheng, Y Murayama, K Ueno, T Asamizuya, K Tanaka, N Logothetis (2011) Attention but not Awareness Modulates the BOLD Signal in Human V1 During Binocular Suppression. Science 11 November 2011 DOI: 10.1126/science.1203161

http://www.sciencemag.org/content/334/6057/829

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