The motor feelings and the muscular sense.

Lewes, George Henry

doi:10.1037/12402-018

Cited by 2 publications

(2 citation statements)

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“…The relative importance, in the perception of force, of sensory information generated centrally, via corollaries of the descending motor command, and peripherally from muscular afferent discharges, has been subject to much debate and experimentation. This controversy dates back to the late nineteenth century, although at that time the arguments advanced in support of both positions were often philosophical rather than empirical (Bastian, 1887; Lewes, 1879). By the turn of the century, the concept of central irradiation of motor impulses had largely disappeared from physiological discussions.…”

Section: Sensory Models Of Force and Weight Perceptionmentioning

confidence: 99%

Perception of force and weight: Theory and research.

Jones

1986

Psychological Bulletin

302

177

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Psychophysical experiments examining the nature of the sensory systems mediating the perception offeree and weight in human subjects are reviewed. The results from these studies, which involve both experimental and clinical changes in the neuromuscular system, suggest that sensations offeree and heaviness are derived from centrally generated motor commands. This has been demonstrated during fatigue, after partial curarization. and when the biomechanical properties of the limb have been changed. There is also experimental support for the proposition that muscular afferent discharges contribute to the perception of force. Judgments of weight are also shown to be influenced by variables such as volume and density. The effects of volume on perceived heaviness are addressed in the context of the size-weight illusion. The importance of incorporating these stimulus properties in our theories of weight perception is discussed.

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Section: Sensory Models Of Force and Weight Perceptionmentioning

confidence: 99%

Perception of force and weight: Theory and research.

Jones

1986

Psychological Bulletin

302

177

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“…Lewes, 1879;Waller, 1891). Holmes studied patients with unilateral cerebellar dysfunction and found that weights were commonly judged as heavier on the affected, hypotonic side (1917,1922).…”

Section: Introductionmentioning

confidence: 99%

Effects of related sensory inputs on motor performances in man studied through changes in perceived heaviness

Gandevia¹,

McCloskey²

1977

The Journal of Physiology

106

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SUMMARY1. The perception of the heaviness of lifted objects was studied using a weight-matching task when sensory inputs from parts related to the lifting task were altered.2. A weight lifted by flexing the index finger feels heavier when the thumb is anaesthetized and lighter when the thumb is electrically stimulated. A weight lifted by flexing the distal joint of the thumb feels heavier when the sensory input from the skin and joint of the thumb is abolished by anaesthesia. It also feels heavier when the index (but not the little) finger is anaesthetized, and lighter when the index (but not the little) finger is electrically stimulated.3. A weight lifted by extending the thumb feels lighter when the sensory input from the thumb is abolished.4. The perceived heaviness of a weight lifted by flexing the thumb is increased during anaesthesia of the thumb when the flexor of the thumb is the prime mover but not when it is acting simply as a postural fixator to support the weight.5. The sensation of the heaviness of lifted objects derives from the effort or centrally generated voluntary motor command employed in the lift. Our results indicate that the motor commands to either thumb or index finger flexors are facilitated by sensory inputs arising from a wide sensory field usually involved in co-operative motor performances carried out by both muscle groups together.

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The motor feelings and the muscular sense.

Cited by 2 publications

References 0 publications

Perception of force and weight: Theory and research.

Perception of force and weight: Theory and research.

Effects of related sensory inputs on motor performances in man studied through changes in perceived heaviness

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