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  2. Hedonic scale - Wikipedia

    en.wikipedia.org/wiki/Hedonic_scale

    The hedonic scale is a sensory evaluation tool used to measure the degree of pleasure or liking of a product or service. The scale usually consists of 9 levels ranging from 1 to 9, or "dislike extremely" to "like extremely". [1] The hedonic scale is widely used for consumer acceptance testing. [2] [3]

  3. Hedonic treadmill - Wikipedia

    en.wikipedia.org/wiki/Hedonic_treadmill

    Hedonic adaptation is an event or mechanism that reduces the affective impact of substantial emotional events. Generally, hedonic adaptation involves a happiness "set point", whereby humans generally maintain a constant level of happiness throughout their lives, despite events that occur in their environment.

  4. Somatic symptom disorder - Wikipedia

    en.wikipedia.org/wiki/Somatic_symptom_disorder

    In somatic disorder, there is a negative connection between elevated pain scores and 5-hydroxy indol acetic acid (5-HIAA) and tryptophan levels. [ 26 ] It has been suggested that proinflammatory processes may have a role in somatic symptom disorder, such as an increase of non-specific somatic symptoms and sensitivity to painful stimuli . [ 28 ]

  5. Anhedonia - Wikipedia

    en.wikipedia.org/wiki/Anhedonia

    Anhedonia is a diverse array of deficits in hedonic function, including reduced motivation or ability to experience pleasure. [1] While earlier definitions emphasized the inability to experience pleasure, anhedonia is currently used by researchers to refer to reduced motivation, reduced anticipatory pleasure (wanting), reduced consummatory pleasure (liking), and deficits in reinforcement learning.

  6. Rating scales for depression - Wikipedia

    en.wikipedia.org/wiki/Rating_scales_for_depression

    Instead of presenting a five-category response set, the GDS questions are answered with a simple "yes" or "no". [13] [14] The Zung Self-Rating Depression Scale is similar to the Geriatric Depression Scale in that the answers are preformatted. In the Zung Self-Rating Depression Scale, there are 20 items: ten positively worded and ten negatively ...

  7. Arousal - Wikipedia

    en.wikipedia.org/wiki/Arousal

    Arousal is the physiological and psychological state of being awoken or of sense organs stimulated to a point of perception. It involves activation of the ascending reticular activating system (ARAS) in the brain, which mediates wakefulness, the autonomic nervous system, and the endocrine system, leading to increased heart rate and blood pressure and a condition of sensory alertness, desire ...

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