Glossary A

Anxious/ambivalent attachment style refers to an attachment style characterized by a concern that others will not reciprocate one's desire for intimacy, resulting in higher-than-average levels of anxiety.

Aortic arch that which arises from the left ventricle of the heart.

Aortic bodies refer to receptors located in the arch of the aorta that are capable of detecting changes in arterial PO2.

APA Division refers to the subdivision of the American Psychological Association that focuses on (1) understanding the etiology and promotion and maintenance of health ; (2) preventing, diagnosing, treating, and rehabilitating physical and mental illness ; (3) studying psychological, social, emotional, and behavioral factors in physical and mental illness; and (4) improving the health care system and formulation of health policy.

APA Ethics Code refers to a common set of principles and standards on which psychologists build their professional and scientific work. This Code is intended to provide specific standards that cover most situations encountered by psychologists. Its primary goal is the welfare and protection of the individuals and groups with whom psychologists work.

APA format refers to the journal article format specified by the American Psychological Association (APA).

Deutsch: Apathie / Español: Apatía / Português: Apatia / Français: Apathie / Italiano: Apatia

In psychology, apathy refers to a lack of interest, enthusiasm, or concern. It is characterized by diminished motivation or a lack of feeling towards activities that typically might excite the individual, often impacting their daily functioning.

Aperture problem refers to a situation in which only a portion of a moving stimulus can be seen, as when the stimulus is viewed through a narrow aperture. This results in misleading information about the direction in which the stimulus is moving.