Category: U

  • Unconsummated

    Characterized by not having had coitus.  

  • Unconscious motivation

    Motivation for a person’s behavior of which he or she is not aware.  

  • Unconscious mind

    Subconscious mind.  

  • Unconscious interference

    A process to explain certain perceptual phenomena such as size constancy. An object is perceived to be in the distance and is, there-fore, unconsciously perceived as larger than it appears to be retinally shape constancy.  

  • Unconscious action

    Behavior in which a person is experiences no sensory awareness.  

  • Unconditioned stimulus

    The activator (stimulus) that elicits the unconditioned response in classical conditioning. Any stimulus that elicits an unconditioned response (i.e., a response that occurs by reflex rather than by learning).  

  • Unconditioned response

    The reaction (response) that is made to the unconditioned stimulus in classical conditioning. An example is an inborn reflex. A response to a stimulus which occurs automatically, by instinct, and has not been learned. An inherent response rather than one that is learned.  

  • Unconditioned reflex

    Unconditioned response. Instinctive, unlearned response to a stimulus; also called instinctual response; instinctive reflex; inborn reflex. A natural or inherited reflex action; one not acquired.  

  • Unconditional positive regard

    According to Rogers, an essential characteristic of a client-centered therapist, who needs to be totally accepted by the client, in order for him or her to adequately evaluate the client’s behavior in relation to progress toward self-actualization.  

  • Uncommon foods

    Foods introduced into a weight reduction diet that a person finds unfamiliar and perhaps unappetizing.