It's an emergency system, beyond volitional control, and it doesn't care if it makes your head hurt.

"I have been working on my programming, smoothing the transition from old Data to new Data, so that the transition will be completely under my volitional control," Data said thoughtfully.

An interest in spirituality, combined with volitional control of rationalization, led inevitably to the first clear distinguishing between pleasure and joy.

Much of Bargh's work investigates whether behaviors thought to be under volitional control may result from automatic interpretations of and reactions to external stimuli, such as words.

The State's experts agreed, however, that "[r]espondent's mental disorder does not impair his volitional control to the degree he cannot control his dangerous behavior."

In humans, one can assess the occurrence of a sniff based upon volitional control of air movement through the nose.

"Eidetic images occur during alert consciousness and are amenable to some degree of volitional control."

The idea is that rhythmic, melodic, emotionally expressive vocal ritual helped bond coalitions and, over time, set up selection pressures for enhanced volitional control over the speech articulators.

For muscles that lack any volitional control, such as after complete spinal cord injury, exercise may be assisted, and may require equipment, such as using a standing frame to sustain a standing position.

During that time he never received thoughts except those about to be verbalized, never sensed emotions, and never had any conscious volitional control of his wild talent.