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In signal processing, distortion is the alteration of the original shape (or other characteristic) of a signal.In communications and electronics it means the alteration of the waveform of an information-bearing signal, such as an audio signal representing sound or a video signal representing images, in an electronic device or communication channel.
Parataxic distortion, inclination to skew perceptions of others based on fantasy; Distortions (economics), a concept in economics; Distortion function, used to define distortion risk measures; In mathematics, distortion has several meanings, including: Distortion (mathematics), a measure of how much a function distorts angles
A cognitive distortion is a thought that causes a person to perceive reality inaccurately due to being exaggerated or irrational. Cognitive distortions are involved in the onset or perpetuation of psychopathological states, such as depression and anxiety .
Chronostasis – Distortion in the perception of time; Cognitive distortion – Exaggerated or irrational thought pattern; Defence mechanism – Unconscious psychological mechanism; Dysrationalia – Inability to think and behave rationally despite adequate intelligence; Fear, uncertainty, and doubt – Tactic used to influence opinion
Cognitive restructuring (CR) is a psychotherapeutic process of learning to identify and dispute irrational or maladaptive thoughts known as cognitive distortions, [1] such as all-or-nothing thinking (splitting), magical thinking, overgeneralization, magnification, [1] and emotional reasoning, which are commonly associated with many mental health disorders. [2]
Thus, cognitive biases may sometimes lead to perceptual distortion, inaccurate judgment, illogical interpretation, and irrationality. [2] [3] [4] While cognitive biases may initially appear to be negative, some are adaptive. They may lead to more effective actions in a given context. [5]
Neologistic paraphasias, a substitution with a non-English or gibberish word, follow pauses indicating word-finding difficulty. [13] They can affect any part of speech, and the previously mentioned pause can be used to indicate the relative severity of the neologism; less severe neologistic paraphasias can be recognized as a distortion of a real word, and more severe ones cannot.
The distortion in the sense of taste is the only symptom, and diagnosis is usually complicated since the sense of taste is tied together with other sensory systems. Common causes of dysgeusia include chemotherapy , asthma treatment with albuterol , and zinc deficiency .