Tactile suppression of displacement
نویسندگان
چکیده
منابع مشابه
Saccadic suppression of image displacement.
HeImholtz (1867) suggested that the retinal image displacement vector, the afferent signal, is compared with the expected saccadic displacement vector, the efferent copy (Holst and Mittelstaedt, 1950) carried by the corollary discharge (Sperry, 1950) and this process may be called the " vectorial Helmholtzian com-parator for the frame of reference ". The results presented in this report show th...
متن کاملTactile suppression and visual attention: Effects on tactile discrimination performance
The aim was to investigate tactile discrimination performance under various active and passive conditions and explore the influence of visual information. Participants had to discriminate the direction of lateral pin strokes on their fingertip under three conditions. In one condition (" static ") only tactile stimulation was provided. In a second condition (" active ") the shear force device wa...
متن کاملSuppression of displacement in severely slowed saccades
Severely slowed saccades in Spinocerebellar ataxia have previously been shown to be at least partially closed-loop in nature, their long duration means that they can be modified in-flight in response to intrasaccadic target movements. In this study, a woman with these pathologically slowed saccades could modify them in-flight in response to target movements, even when saccadic suppression of di...
متن کاملReach-relevant somatosensory signals modulate tactile suppression.
Tactile stimuli on moving limbs are typically attenuated during reach planning and execution. This phenomenon has been related to internal forward models that predict the sensory consequences of a movement. Tactile suppression is considered to occur due to a match between the actual and predicted sensory consequences of a movement, which might free capacities to process novel or task-relevant s...
متن کاملEnhancement and suppression of tactile signals during reaching.
The perception of tactile stimuli presented on a moving hand is systematically suppressed. Such suppression has been attributed to the limited capacity of the brain to process task-irrelevant sensory information. Here, we examined whether humans do not only suppress movement-irrelevant but also enhance in parallel movement-relevant tactile signals when performing a goal-directed reaching moveme...
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ژورنال
عنوان ژورنال: Experimental Brain Research
سال: 2010
ISSN: 0014-4819,1432-1106
DOI: 10.1007/s00221-010-2407-z