psychology 

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Psychology Term-Adrenal cortex
The outermost layer of the adrenal gland secretes corticosteroid hormones, including cortisol (hydrocortisone), into the bloodstream in reaction to stress.


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Psychology Terms - Adrenal gland
An endocrine gland located superior to each kidney, responsible for the secretion of adrenalin (epinephrine), noradrenalin (norepinephrine), and various other hormones into the bloodstream.


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Psychology Terms – adrenaline
A biogenic amine and hormone classified as a catecholamine, also serving as a neurotransmitter, synthesized from tyrosine in the presence of the cofactor vitamin C, secreted by the chromaffin cells of the adrenal medulla and nerve fibers in the sympathetic nervous system. It induces an increase in blood pressure, accelerated heart rate, deepened respiration, sweating, pupil dilation, release of glucose from hepatic stores, redirection of blood from the intestines to skeletal muscles, closure of the bladder sphincter resulting in urine retention, and other physiological responses characteristic of fear, anxiety, or stress. Formula: (HO)2C6H3CH(OH)CH2NHCH3. Also spelled adrenaline. Commonly referred to as epinephrine, particularly in the United States.


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Psychology Terms- Active vocabulary
The collection of words employed by an individual in verbal and written communication.


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Psychology Terms - Acuity refers to the keenness or sharpness, particularly of sensory perception.



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Psychology Terms – Acting In
A word occasionally employed in psychoanalysis to signify acting out when it transpires during an analytic session rather than in everyday life.



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Psychology Terms - acting out
1. In psychoanalysis, the performance of past experiences, particularly those associated with transference during therapy, is emphasized over mere remembrance. It is frequently impulsive and violent, typically deviating from the patient's customary behavior. The notion was presented by Sigmund Freud (1856–1939) in An Outline of Psycho-Analysis (1938/40): the patient 'enacts the past experience before us, rather than merely recounting it.' Standard Edition, XXIII, p. 2. A defense mechanism whereby unconscious emotional conflicts or impulses are addressed by behaviors, including parapraxes, rather than through thought or reflection.




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Psychology Terms - Action
​ In social psychology and the broader social sciences, any behavior marked by intentionality and thus subjectively comprehensible, as delineated by the German economist and sociologist Max Weber (1864–1920) in the initial chapter of his posthumously published work, Wirtschaft und Gesellschaft (Economy and Society), released in 1922. For instance, involuntarily burping during a dinner party constitutes behavior, whereas subsequently apologizing represents an action. Refer to Verstehen as well. The act of doing an action or a specific occurrence of an action executed. [Derived from the Latin term actio, meaning action, which originates from agere, signifying to do or to act, combined with the suffix -ion that denotes a process.



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Psychology Terms – Action Potential
Action potential refers to the transient alteration in the voltage differential across a neuron's membrane, typically initiated by nerve impulses from multiple other neurons at synapses. This phenomenon is characterized by the influx of positively charged sodium ions through the cell membrane, leading to the propagation of an impulse along the neuron's axon. This process reverses the resting potential, which is approximately −70 millivolts (mV), where the inner surface is negative relative to the outer surface, and the membrane exhibits greater permeability to potassium ions than to sodium ions. The potential shifts to approximately +40 mV, enhancing the membrane's permeability to sodium ions and facilitating the influx of positively charged ions, thereby transmitting the potential from the axon hillock down the axon at velocities ranging from about 0.1 to 10 meters per second. Also referred to as a nerve impulse.


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Psychology Terms - action research
A phrase introduced in the 1940s by German-American psychologist Kurt Lewin (1890–1947) for a type of applied research that integrates experimental methods with social action initiatives to achieve intended social transformations.



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