The gap effect for eye and hand movements in double-step pointing

Philippe Boulinguez; Jean Blouin; Vincent Nougier

doi:10.1007/s002210100718

The gap effect for eye and hand movements in double-step pointing

Experimental Brain Research ◽

10.1007/s002210100718 ◽

2001 ◽

Vol 138 (3) ◽

pp. 352-358 ◽

Cited By ~ 9

Author(s):

Philippe Boulinguez ◽

Jean Blouin ◽

Vincent Nougier

Keyword(s):

Gap Effect ◽

Hand Movements ◽

Double Step

Download Full-text

The Gap Effect for Eye and Hand Movements

PsycEXTRA Dataset ◽

10.1037/e537272012-545 ◽

1994 ◽

Author(s):

Jay Pratt ◽

Heather Oonk ◽

Harold Bekkering ◽

Richard A. Abrams ◽

Mark B. Law

Keyword(s):

Gap Effect ◽

Hand Movements

Download Full-text

Adaptation of hand movements to double-step targets and to distorted visual feedback: Evidence for shared mechanisms

Human Movement Science ◽

10.1016/j.humov.2011.08.003 ◽

2012 ◽

Vol 31 (4) ◽

pp. 791-800 ◽

Cited By ~ 3

Author(s):

Gerd Schmitz ◽

Otmar Bock ◽

Valentina Grigorova ◽

Steliana Borisova

Keyword(s):

Visual Feedback ◽

Hand Movements ◽

Double Step

Download Full-text

The gap effect for eye and hand movements

Perception & Psychophysics ◽

10.3758/bf03213095 ◽

1996 ◽

Vol 58 (4) ◽

pp. 628-635 ◽

Cited By ~ 45

Author(s):

Harold Bekkering ◽

Jay Pratt ◽

Richard A. Abrams

Keyword(s):

Gap Effect ◽

Hand Movements

Download Full-text

Eye-hand coordination during a double-step task: evidence for a common stochastic accumulator

Journal of Neurophysiology ◽

10.1152/jn.00276.2015 ◽

2015 ◽

Vol 114 (3) ◽

pp. 1438-1454 ◽

Cited By ~ 12

Author(s):

Atul Gopal ◽

Aditya Murthy

Keyword(s):

Race Model ◽

Hand Movements ◽

Response Patterns ◽

Double Step ◽

Temporal Correlations ◽

Significant Difference ◽

Mean And Variance ◽

The Common ◽

Hand Coordination ◽

Independent Model

Many studies of reaching and pointing have shown significant spatial and temporal correlations between eye and hand movements. Nevertheless, it remains unclear whether these correlations are incidental, arising from common inputs (independent model); whether these correlations represent an interaction between otherwise independent eye and hand systems (interactive model); or whether these correlations arise from a single dedicated eye-hand system (common command model). Subjects were instructed to redirect gaze and pointing movements in a double-step task in an attempt to decouple eye-hand movements and causally distinguish between the three architectures. We used a drift-diffusion framework in the context of a race model, which has been previously used to explain redirect behavior for eye and hand movements separately, to predict the pattern of eye-hand decoupling. We found that the common command architecture could best explain the observed frequency of different eye and hand response patterns to the target step. A common stochastic accumulator for eye-hand coordination also predicts comparable variances, despite significant difference in the means of the eye and hand reaction time (RT) distributions, which we tested. Consistent with this prediction, we observed that the variances of the eye and hand RTs were similar, despite much larger hand RTs (∼90 ms). Moreover, changes in mean eye RTs, which also increased eye RT variance, produced a similar increase in mean and variance of the associated hand RT. Taken together, these data suggest that a dedicated circuit underlies coordinated eye-hand planning.

Download Full-text