Affect
Affect: The emotional tone a person expresses. A person’s affect may be appropriate or inappropriate to the situation. One type of inappropriate affect is a flat affect or blunted affect, a common feature of schizophrenia.
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- Affective disorder, seasonal (SAD)
Affective disorder, seasonal (SAD): Depression that tends to occur (and recur) as the days grow shorter in the fall and winter. It is believed that affected persons react adversely to the decreasing amounts of light and the colder temperatures as the fall and winter progress. Seasonal affective disorder has not been recognized very long as […]
- Afferent
Afferent: Carrying toward. A vein is an afferent vessel because it carries blood from the body toward the heart. The opposite of afferent is efferent.
- Afferent nerve
Afferent nerve: A nerve that carries impulses toward the central nervous system.
- Afferent vessel
Afferent vessel: A vessel that carries blood toward the heart. A vein or venule.
- Affinity
Affinity: In immunology, the strength of binding interaction between antigen and antibody molecules.