The Spiral Aftereffect Iii Some Effects Of Perceived Size Retinal Size And Retinal Speed On The Duration Of Illusory Motion

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The Spiral Aftereffect

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Author : Kevin D. Mehling
language : en
Publisher:
Release Date : 1971

The Spiral Aftereffect written by Kevin D. Mehling and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with After-images categories.

The Spiral Aftereffect Iii Some Effects Of Perceived Size Retinal Size And Retinal Speed On The Duration Of Illusory Motion

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Author :
language : en
Publisher:
Release Date : 1971

The Spiral Aftereffect Iii Some Effects Of Perceived Size Retinal Size And Retinal Speed On The Duration Of Illusory Motion written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with categories.

Many safety problems encountered in aviation have been attributed to visual illusions. One of the various types of visual illusions, that of apparent motion, includes as an aftereffect the apparent reversed motion of an object after it ceases real movement. The study examined some effects of perceived size, perceived distance, and perceived stimulus speed on the persistence of illusory motion in the spiral aftereffect. Two major conditions were used: Size Constant: a 4-inch spiral was positioned to subtend visual angles of 1/2, 1, 2, 4, and 8 deg with seven rates of retinal speed (10-100 minarcs/sec) used at each angle; Angle Constant: three sizes of spirals were positioned so that each subtended visual angles of 2, 4, and 8 deg with physical speed held constant (75 rpm) in one case, and retinal speed (45 minarcs/sec) held constant in another. Durations of the illusion were significantly affected by low retinal speeds, by small visual angles, and by perceived size per unit of retinal size. The results suggest that complex interactions of physical and perceptual factors can significantly alter the presence and the magnitudes of visual illusions of motion. (Author).

The Spiral Aftereffect Iii Some Effects Of Perceived Size Retinal Size And Retinal Speed On The Duration Of Illusory Motion

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Author : Kevin D. Mehling
language : en
Publisher:
Release Date : 1971

The Spiral Aftereffect Iii Some Effects Of Perceived Size Retinal Size And Retinal Speed On The Duration Of Illusory Motion written by Kevin D. Mehling and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with categories.

Many safety problems encountered in aviation have been attributed to visual illusions. One of the various types of visual illusions, that of apparent motion, includes as an aftereffect the apparent reversed motion of an object after it ceases real movement. The study examined some effects of perceived size, perceived distance, and perceived stimulus speed on the persistence of illusory motion in the spiral aftereffect. Two major conditions were used: Size Constant: a 4-inch spiral was positioned to subtend visual angles of 1/2, 1, 2, 4, and 8 deg with seven rates of retinal speed (10-100 minarcs/sec) used at each angle; Angle Constant: three sizes of spirals were positioned so that each subtended visual angles of 2, 4, and 8 deg with physical speed held constant (75 rpm) in one case, and retinal speed (45 minarcs/sec) held constant in another. Durations of the illusion were significantly affected by low retinal speeds, by small visual angles, and by perceived size per unit of retinal size. The results suggest that complex interactions of physical and perceptual factors can significantly alter the presence and the magnitudes of visual illusions of motion. (Author).

Spiral Aftereffect

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Author :
language : en
Publisher:
Release Date : 1971

Spiral Aftereffect written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with categories.

The Spiral Aftereffect

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Author : William Edward Collins
language : en
Publisher:
Release Date : 1968

The Spiral Aftereffect written by William Edward Collins and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with After-images categories.

Faa Am

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Author :
language : en
Publisher:
Release Date : 1971

Faa Am written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Aviation medicine categories.

Aviation Medical Reports

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Author : United States. Office of Aviation Medicine
language : en
Publisher:
Release Date : 1969

Aviation Medical Reports written by United States. Office of Aviation Medicine and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Aviation medicine categories.

Monthly Catalog Of United States Government Publications Cumulative Index

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Author : United States. Superintendent of Documents
language : en
Publisher:
Release Date : 1979

Monthly Catalog Of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with United States categories.

Monthly Catalog Of United States Government Publications

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Author :
language : en
Publisher:
Release Date : 1971

Monthly Catalog Of United States Government Publications written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Government publications categories.

Readers Advisory Service

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Author :
language : en
Publisher:
Release Date : 1975

Readers Advisory Service written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with Bibliography categories.