Muteness - Variations

Variations

Selective mutism is a disorder related to social anxiety in which people are unable to speak in specific anxiety-producing situations but speak fluently in more comfortable situations.

Hearing mutism is an obsolete term used in the late nineteenth and early twentieth century for specific language impairment.

Akinetic mutism is inability to speak (mutism) and move (akinesia). It is the result of severe frontal lobe injury in which the pattern of inhibitory control is one of increasing passivity and gradually decreasing speech and motion.

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Famous quotes containing the word variations:

    I may be able to spot arrowheads on the desert but a refrigerator is a jungle in which I am easily lost. My wife, however, will unerringly point out that the cheese or the leftover roast is hiding right in front of my eyes. Hundreds of such experiences convince me that men and women often inhabit quite different visual worlds. These are differences which cannot be attributed to variations in visual acuity. Man and women simply have learned to use their eyes in very different ways.
    Edward T. Hall (b. 1914)