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automatism |
automatic, mechanical, or involuntary action, as in the operation of many bodily organs, in the actions of one not in conscious control, such as a sleepwalker, or in the suspension of conscious control so as to allow subconscious expression, as in art. [1/2 definitions] |
autonomic nervous system |
the part of the nervous system in vertebrates that controls involuntary bodily processes, such as the operation of the heart, stomach, and glands; sympathetic and parasympathetic nervous systems together. |
biofeedback |
a method for self-regulation of presumably involuntary bodily functions, such as heartbeat rate, with the aid of electronic monitors that display visual representations of such functions. |
blush |
to become red in the face as an involuntary expression of shame, confusion, or other self-conscious discomfort. [1/7 definitions] |
consensual |
in physiology, denoting an involuntary response on one side of the body to a stimulus applied to the other side. [1/2 definitions] |
convulse |
to cause to have involuntary spasms or muscle contractions. [1/3 definitions] |
convulsion |
a violent, involuntary contraction of the muscles. [1/2 definitions] |
durance |
involuntary and usu. extended confinement, as in a prison. |
emotion |
a strong feeling or subjective response such as joy, hatred, or love, sometimes accompanied by involuntary physical changes such as increased pulse or by activity such as crying, laughing, or trembling. [1/3 definitions] |
enuresis |
involuntary release of urine, esp. while sleeping; incontinence. |
fibrillation |
involuntary and uncoordinated rapid twitching of muscle fibrils, esp. in the heart muscles. [1/2 definitions] |
forced |
involuntary; imposed. [1/2 definitions] |
habit |
a fixed, repeated, often involuntary behavior; compulsion; addiction. [1/5 definitions] |
hiccup |
a sudden, spasmodic inhalation that is cut off by the involuntary closing of the windpipe. [1/4 definitions] |
jump |
an sudden, involuntary move or jerk; a start. [1/20 definitions] |
nystagmus |
an involuntary twitching or vibrating movement of the eyeball, usu. from side to side. |
reflex |
denoting or pertaining to an involuntary physiological response or reaction to a stimulus. [2/7 definitions] |
saccade |
a rapid, involuntary eye movement, as during reading. [1/2 definitions] |
smooth muscle |
the smooth, involuntary muscle tissue found in the internal organs and blood vessels, excluding the heart. |
sneeze |
to let out a sudden, involuntary burst of air through the mouth and nose. [1/2 definitions] |
start |
a quick, sudden, or involuntary movement. [1/15 definitions] |
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