scholarly journals What information is being acquired during the period of Quiet Eye? Comment on Vickers

2021 ◽  
Vol 1 ◽  
pp. 112
Author(s):  
Sérgio T. Rodrigues ◽  
Martina Navarro
Keyword(s):  
Optic Flow ◽  
Relevant Information ◽  
Whole Body ◽  
Experimental Paradigm ◽  
Successful Performance ◽  
Motor Programs ◽  
Quiet Eye ◽  
Visual Systems ◽  
Two Visual Systems ◽  
Extended Notion

Sports and athletes’ highest performance offer a fascinating scenario to investigate perceptual-motor expertise. The remarkable work of Joan Vickers has captured this opportunity and built a valuable experimental paradigm. Our commentary emphasizes what information is being acquired during the period of Quiet Eye (QE), capable to produce successful performance. First, an extended notion of visual system that includes posture is presented. It is suggested that QE would represent a collective postural effort (resulting from movements of eyes, head, trunk, and whole body) to acquire the relevant information available in the optic flow. Second, the contribution of neural structures and functioning for vision and attention is discussed. Models of neural networks of attention and two visual systems are described with respect to QE and some questions about action parameters and motor programs are raised.

Integrating constructivist and ecological approaches

2002 ◽  
Vol 25 (1) ◽  
pp. 117-118
Author(s):  
Wayne Shebilske
Keyword(s):  
Skill Development ◽  
Theoretical Approaches ◽  
Visual Systems ◽  
Complex Skill ◽  
Two Visual Systems

Norman relates two theoretical approaches, the constructivist and ecological, to two cortical visual streams, the ventral and dorsal systems, respectively. This commentary reviews a similar approach in order to increase our understanding of complex skill development and to advance Norman's goal of stimulating and guiding research on the two theoretical approaches and the two visual systems.

scholarly journals The induced Roelofs effect: two visual systems or the shift of a single reference frame?

2004 ◽  
Vol 44 (6) ◽  
pp. 603-611 ◽  
Author(s):  
Paul Dassonville ◽  
Bruce Bridgeman ◽  
Jagdeep Kaur Bala ◽  
Paul Thiem ◽  
Anthony Sampanes
Keyword(s):  
Reference Frame ◽  
Visual Systems ◽  
Roelofs Effect ◽  
Two Visual Systems

On the development of the two visual systems

2002 ◽  
Vol 25 (1) ◽  
pp. 120-120 ◽  
Author(s):  
John van der Kamp ◽  
Geert J. P. Savelsbergh
Keyword(s):  
Temporal Sequence ◽  
Visual Systems ◽  
Two Visual Systems ◽  
Different Types ◽  
Types Of Information

Norman's reconciliation of the two theories of perception is challenged because it directly leads to the nature-nurture dichotomy in the development of the two visual systems. In contrast, the proposition of a separate development of the two visual systems may be better understood as involving different types of information that follow a distinct temporal sequence.

Two visual systems in mental imagery

Neurology ◽  
1986 ◽  
Vol 36 (5) ◽  
pp. 733-733
Author(s):  
M. I. Botez ◽  
E. V. de la Puente
Keyword(s):  
Mental Imagery ◽  
Visual Systems ◽  
Two Visual Systems

Neuroanatomy and function in two visual systems

2000 ◽  
Vol 23 (4) ◽  
pp. 535-536
Author(s):  
Bruce Bridgeman
Keyword(s):  
Visual System ◽  
Cross Talk ◽  
Visual Illusions ◽  
Sensorimotor System ◽  
Reverse Link ◽  
Visual Systems ◽  
Two Visual Systems ◽  
Direct Cross ◽  
Normal Humans ◽  
And Function

Neuroanatomy and neurophysiology are insufficient to specify function. Modeling is essential to elucidate function, but psychophysics is also required. An example is the cognitive and sensorimotor branches of the visual system: anatomy shows direct cross talk between the branches. Psychophysics in normal humans shows links from cognitive to sensorimotor, but the reverse link is excluded by visual illusions affecting the cognitive system but not the sensorimotor system.

A wider view of the spatial mode of vision

2002 ◽  
Vol 25 (1) ◽  
pp. 108-110
Author(s):  
David Ingle
Keyword(s):  
Parietal Cortex ◽  
Visual Processing ◽  
Spatial Mode ◽  
Visual Systems ◽  
Two Visual Systems

The two modes of visual processing “localizing” versus “identifying” as expressed by four authors in 1967 are more encompassing than the “two visual systems” dichotomies posed by later theorists. Norman's view of parietal cortex functions of vision seems much too narrow.

Problems with a “cortical screen” for visual imagery

2002 ◽  
Vol 25 (2) ◽  
pp. 195-196 ◽  
Author(s):  
David Ingle
Keyword(s):  
Eye Movements ◽  
Visual Imagery ◽  
Visual Information ◽  
Visual Space ◽  
Spatial Layout ◽  
Systems Model ◽  
Visual Systems ◽  
Two Visual Systems ◽  
Cortical Map

I support Pylyshyn's skepticism that visual imagery reflects a re-activation of the spatial layout of active neurons embedded within a topographical cortical map of visual space. The pickup of visual information via successive eye movements presents one problem and the two visual systems model poses another difficulty.

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