Examlex
Activation of which kind of receptor causes heart rate to increase?
Intermediate
Positioned between two extremes or in the middle of a range, often referring to a level of skill, difficulty, or complexity that is not basic but not advanced either.
Impersonal
Lacking personal interest, attachment, or warmth; not relating to or influenced by personal feelings.
Sustained Attention
The ability to maintain attention to a selected stimulus for a prolonged period of time.
Selected Stimulus
A specific environmental event or condition selected by a researcher to observe its effects on the behavior of an organism.
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