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The definition of perseverative cognition is: "the repeated or chronic activation of the cognitive representation of one or more psychological stressors". [ 2 ] [ 8 ] Worry , rumination and all other forms of thoughts ( cognition ), about stressful events that have happened or might happen, fall under the definition of perseverative cognition.
A process theory is a system of ideas that explains how an entity changes and develops. [1] Process theories are often contrasted with variance theories, that is, systems of ideas that explain the variance in a dependent variable based on one or more independent variables. While process theories focus on how something happens, variance theories ...
Rumination appears closely related to worry. Rumination is the focused attention on the symptoms of one's mental distress. In 1998, Nolen-Hoeksema proposed the Response Styles Theory, [1] [2] which is the most widely used conceptualization model of rumination. However, other theories have proposed different definitions for rumination.
Rumination may refer to: Rumination, the digestive process of ruminants. Rumination syndrome, a chronic condition characterized by effortless regurgitation of most meals following consumption; Deep thought or consideration Rumination (psychology), contemplation or reflection, which may become persistent and recurrent worrying or brooding
The dual process theory of behavioral habituation relies on two underlying (non-behavioral) processes; depression and facilitation with the relative strength of one over the other determining whether or not habituation or sensitization is seen in the behavior. Habituation weakens the intensity of a repeated stimulus over time subconsciously.
Cognitive biology is an emerging science that regards natural cognition as a biological function. [1] It is based on the theoretical assumption that every organism—whether a single cell or multicellular—is continually engaged in systematic acts of cognition coupled with intentional behaviors, i.e., a sensory-motor coupling. [2]
Evolutionary epistemology refers to three distinct topics: (1) the biological evolution of cognitive mechanisms in animals and humans, (2) a theory that knowledge itself evolves by natural selection, and (3) the study of the historical discovery of new abstract entities such as abstract number or abstract value that necessarily precede the individual acquisition and usage of such abstractions.
The timeline of the evolutionary history of life represents the current scientific theory outlining the major events during the development of life on planet Earth. Dates in this article are consensus estimates based on scientific evidence , mainly fossils .