Categories
D

Delta-wave

Delta waves are the least frequent brainwaves, oscillating under 4 Hz and more than 0.5 Hz, and are connected with unconscious states and profoundly restful sleep. Delta brainwave activity, in physical and mental recovery aspects, as well as emotional regulation and neural reconstruction, is considered a crossroads in psychology and neuroscience. An abnormal condition that […]

Categories
D

Dependence

In psychology, dependence refers to a state in which an individual relies on a substance, person, or behavior to function, cope, or feel a sense of well-being. Physical dependence involves the body adapting to a substance such that its absence causes withdrawal symptoms. Psychological dependence involves emotional or motivational reliance, where a person feels unable […]

Categories
D

Disposition

Psychological dispositions are habitual patterns of emotional responses in relation to varying contexts. They capture the relative constancy of traits such as aggression, optimism, or sociability in the personality. Dispositions profoundly shape individuals’ perceptions, interactions, and personality, and hence figure prominently in the personality literature. For instance, a person with a cheerful disposition will more […]

Categories
D

Dionysian

Dionysian is a psychological state or behavior that is predominantly characterized as instinctive, passionate, uncontrolled, spontaneous, and devoid of reason or moderation. The expression is taken from Nietzsche’s conceptual contrast of the Dionysian and the Apollonian mind. The Dionysian metaphorically and literally represents the chaotic and passionate, as well as the constructive and emotional aspects […]

Categories
D

Dichromatism

Dichromatism represents one of the more benign forms of colour vision deficiency, where an individual perceives only two of the primary colours, instead of three. Such a condition, in both a psychological and neurological sense, arises when one of the three cone photoreceptors (red, green, or blue) is either absent or not functioning. While it […]

Categories
D

Decompensation

In psychology, ‘decompensation’ implies an individual’s mental or emotional equilibrium has broken down, usually caused by strain or intrapsychic conflict. It occurs when an individual has exhausted all their coping mechanisms regarding anxiety, trauma, or psychiatric symptoms. Decompensation can result in extreme emotional distress, psychosocial withdrawal, or even a psychotic episode. Knowledge of this process […]

Categories
D

Depolarization

In neuropsychology and physiology, the process of depolarization describes the situation when the electrochemical charge of a neuron becomes less negative and nerve impulses are transmitted. When a neuron becomes activated, there is a sudden influx of sodium ions into the cell which predictably ends in the triggering of an action potential. This communication is […]

Categories
D

Dyadic-relationship

A dyadic relationship consists of a two-person interaction such as emotional exchange, communication, and interdependence. In psychology, dyadic relationships are studied to comprehend intimacy, attachment, and social behavior. Such relationships exist between friends, romantic partners, parents and children, and therapists and clients. Emotional well-being, trust, and mutual growth are influenced by the quality of the […]

Categories
D

Degrees-of-freedom

An example of how much value a statistical analysis can take without breaking any restrictions is referred to as ‘degrees of freedom’ in psychology. This concept is necessary during hypothesis testing of t-tests, chi-square tests, ANOVAs and similar tests. It explores the shape of the sampling distribution and the estimated significance of testing the null […]

Categories
D

Detachment

Detachment is a mental condition or mechanism where a person separates themselves emotionally from a person or situation or internal feelings. It can work or function in both constructive and unconstructive (adaptive or maladaptive) ways. In terms of positive detachment, a person is able to stay objective, set appropriate boundaries, and control the regulatory emotions […]