Swimming with and against the stream: does motor adaptation to lateral forces influence visual motion perception?
نویسنده
چکیده
Many studies have investigated how the visual system influences motor control (Jackson and Husain, 1997). The reverse relationship of how the motor system influences visual perception has been less studied. For example, it has been suggested that when perceiving the actions of others, the observer’s motor system provides an internal model that is used for ongoing perceptual predictions (Wilson and Knoblich, 2005). To what extent can information acquired by the motor system be used in visual processing, and in particular for predictions of moving stimuli? In a recent study in the Journal of Neuroscience, Brown et al. (2007) show that learning to compensate for a constantly applied lateral force to the hand influences the accuracy of interception movements to a visually presented moving target. While holding a robotic manipulandum with their right-hand, participants first underwent a learning phase in which they made short, quick reaching movements to a visually presented target. During learning three independent groups of participants were exposed to a force of 10 N, pushing their hand either left or right, or to no force (the control group). Participants quickly learned to compensate for the external force. For those participants under the influence of either force direction, hand movement deviations from a straight line to the target quickly approached equivalent values to those in the control group [Brown et al. (2007), their Fig. 2 (http:// www.jneurosci.org/cgi/content/full/27/ 37/9975/F2)]. In the next phase, participants performed an interception task. With the same force as in the training phase applied to their hand, participants now had to “stab” a rightward moving accelerating target “fish” [Brown et al. (2007), their Fig. 1 B, D, (http://www. jneurosci.org/cgi/content/full/27/37/ 9975/F1)]. The target accelerated at 10 m/s , with motion starting at different initial speeds to achieve different viewing times (472, 560, and 672 ms) of the target. Brown et al. (2007) analyzed both the interception success rate and the “interception time difference,” the time between when the center of the target and the hand arrived at the interception point. Interception was generally inaccurate (40% successful hits in the control group), but significantly better ( 50% hits) in the group exposed to a force matching the motion of the target (rightward), and lowest ( 35% hits) in the group exposed to a force opposite to the direction of target motion [Brown et al. (2007), their Fig. 3 (http://www.jneurosci.org/cgi/content/ full/27/37/9975/F3]. On average, participants reached the interception point after the center of the target. However, this lag was significantly shorter in the rightward force group than in both the leftward force and control groups. When separately analyzing trials with different viewing times, an effect of force conditions on interception time differences was only apparent for the longest viewing time [Brown et al. (2007), their Fig. 3 (http:// www.jneurosci.org/cgi/content/full/27/ 37/9975/F3)], leading Brown et al. (2007) to argue that the information acquired by the motor system influences interception performance only when participants use a predictive, rather than reactive strategy. The actual kinematics of the interception movement did not differ between the leftward force and rightward force groups, suggesting that the effects of force direction on interception timing were not the result actual differences in the movement profile of the hand. To further address this point, new groups of participants underwent the same motor learning phase but subsequently performed a “remote interception” task. Again their right hand was exposed to the same force as during learning, but instead of moving their hand to intercept the target, they pressed a button with their left hand when they estimated Received Oct. 5, 2007; revised Nov. 3, 2007; accepted Nov. 5, 2007. I thank Beena Khurana, Jim Parkinson, and Ruth Habibi for fruitful discussions and comments on a previous version of this manuscript. Correspondence should be addressed to Gerrit W. Maus, Psychology Department, University of Sussex, Falmer, Brighton BN1 9QH, UK. E-mail: [email protected]. DOI:10.1523/JNEUROSCI.4545-07.2007 Copyright©2007SocietyforNeuroscience 0270-6474/07/270001-02$15.00/0 The Journal of Neuroscience, December 12, 2007 • 27(50):●–● • 1 balt6/zns-neusci/zns-neusci/zns-orig/zns4195-07a eideg S 3 11/19/07 11:07 Art: 3297084 Input-YY(v)
منابع مشابه
اثر تمرینات بینایی و بینایی- حرکتی منتخب بر مؤلفههای ادراک بینایی وابسته به حرکت در کودکان دارای تنبلی چشم
Background and Objective: The measure of motion playing a role in the growth of visual perception components and particularly visual perception depending on the motion components has not been known. The aim of this present study was to investigate the effect of visual and visual-motor training programs related to the motion of the components of visual perception in children with lazy eye. M...
متن کاملThe Effect of Motor Dependent/Independent Visual Perception Training on Visual-Motor Integration and Fine Motor Skills of 7-8-year-old Children: The Retest of Movement Hypothesis
The purpose of this study was to examine the effect of motor dependent/independent visual perception training on visual-motor integration and fine motor skills of 7-8 year old children .For this purpose, 107, 1st grade primary school students in Sabzevar were selected through purposive sampling (with equal economical and cultural status , optimum mental and physical health and full sight with...
متن کاملRelationship between Visual Impairments and Motor Problems Children 3-6 Age with Low Birth Weight
Abstract Birth weight is one of the most important indicators of neonatal health in any society and is considered as the best tool to measure the outcome of pregnancy and the most important factor in determining the incidence of disease or death of the infant. The purpose of this study was to investigating relationship between visual impairments and motor problems in children 3-6 age with ve...
متن کاملThe effect of music-therapy based on rhythmic activities on visual motor perception of children with autism spectrum disorder
Introduction: Among the problems of children with autism spectrum disorder is the presence of abnormalities in sensory processing and perceptual movement disorders that can cause many behavioral problems in this group of children. The aim of this study was to investigate the effect of music-based therapy on rhythmic activity on visual visual perception of children with autism spectrum disorder....
متن کاملImpact of SHOFER Computer Game on Visual-Motor Coordination in Children With Hearing Impairments
Objectives: The current study aimed at investigating the impact of SHOFER computer game on visual-motor coordination in children with hearing impairments. Methods: The current pre-test, post-test experimental study was conducted in Ahvaz, Iran in 2018. Sixteen preschool children with hearing impairment were randomly assigned into two groups of experimental (n=8) and control (n=8). The experime...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- The Journal of neuroscience : the official journal of the Society for Neuroscience
دوره 27 49 شماره
صفحات -
تاریخ انتشار 2007