Dual prism adaptation: calibration or alignment?
Dual adaptation to different amounts or directions of prismatic displacement, or both, can be acquired and maintained with little mutual interference. Associative recalibration of the regional task- or workspace, contingent on differentiation of distinguishing sensory information, can explain such adaptation. In contrast, nonassociative realignment restores dimensional mapping among spatial representations. Methods for measuring the separate contributions of those 2 kinds of prism adaptation are identified in the present article. On the basis of a critique of dual-adaptation studies, the authors suggest that recalibration can explain the data but that the method used in those experiments confounded realignment and might have obscured the effectiveness of dual-calibration training.
Redding
Gordon M
GM
Department of Psychology, Illinois State University, Normal, IL 61790-4620, USA. gredding@ilstu.edu
Wallace
Benjamin
B
D000065:Accommodation, Ocular; D004215:Distance Perception; D006801:Humans; D007699:Kinesthesis; D009949:Orientation; D010469:Perceptual Distortion; D011340:Problem Solving; D011597:Psychomotor Performance; D011601:Psychophysics; D014796:Visual Perception