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group cohesion

the unity or solidarity of a group, including the integration of the group for both social and task-related purposes. Group cohesion is indicated by the strength of the bonds that link members to the group as a whole, the sense of belongingness and community within the group, the feelings of attraction for specific group members and the group itself as experienced by individuals, and the degree to which members coordinate their efforts to achieve goals, although these factors are neither necessary nor sufficient conditions for cohesion. In many cases, the higher the cohesion, the stronger the members’ motivation to adhere to the group’s standards and the more stable the group’s membership. Group cohesion frequently is considered essential to effective group therapy. Also called group cohesiveness. See also esprit de corps; group solidarity.

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Psychology term of the day

May 26th 2024

GABAA receptor

GABAA receptor

one of the two main types of receptor protein that bind the neurotransmitter gamma-aminobutyric acid (GABA), the other being the GABAB receptorgabab-receptor. It is located at most synapses of most neurons that use GABA as a neurotransmitter. The predominant inhibitory receptor in the central nervous system, it functions as a chloride channel (see ion channel). GABA agonists, such as the barbiturates and benzodiazepines, enhance the binding of GABA to GABAA receptors, allowing for increased conductance of chloride through the ion channel and thereby hyperpolarizing the neuron and inhibiting its activity. GABA antagonists, such as bicuculline and picrotoxin, block the inhibitory effects of GABA at this receptor. Many other substances, including alcohol (ethanol), are thought to exert at least part of their effect via interaction at the GABAA receptor.