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automaticity |
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automaticity /au·to·ma·ti·ci·ty/ (-mah-tis´i-te) 1. the state or quality of being spontaneous, involuntary, or self-regulating. 2. the capacity of a cell to initiate an impulse without an external stimulus. triggered automaticity pacemaker activity occurring as a result of a propagated or stimulated action potential, such as an afterpotential, in cells or tissues not normally displaying spontaneous automaticity. automaticity the ability of cells, after activity, to depolarize spontaneously, and then initiate a propagated, transmembranous, action potential; in healthy hearts only the sinus node cells reach threshold potential without an external stimulus. |
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37,44,45) When the basal ganglia are dysfunctional, as in PD, automaticity of movement is compromised and there is greater reliance on frontal-lobe attentional mechanisms to control movements. Words, pictures, and priming: On semantic activation, conscious identification, and the automaticity of information processing. The teacher designed this activity to promote automaticity (high rates of errorless response). |
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automaticity
