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Mathematically, positive feedback is defined as a positive loop gain around a closed loop of cause and effect. [1][3] That is, positive feedback is in phase with the input, in the sense that it adds to make the input larger. [4][5] Positive feedback tends to cause system instability. When the loop gain is positive and above 1, there will ...
A feedback loop is created when all or some portion of the output is fed back to the input. A device is said to be operating open loop if no output feedback is being employed and closed loop if feedback is being used. [45] When two or more amplifiers are cross-coupled using positive feedback, complex behaviors can be created.
Self-fulfilling prophecies are an example of the more general phenomenon of positive feedback loops. A self-fulfilling prophecy can have either negative or positive outcomes. Merely applying a label to someone or something can affect the perception of the person/thing and create a self-fulfilling prophecy. [3]
The Ryff Scale is based on six factors: autonomy, environmental mastery, personal growth, positive relations with others, purpose in life, and self-acceptance. [1] Higher total scores indicate higher psychological well-being. Following are explanations of each criterion, and an example statement from the Ryff Inventory to measure each criterion.
The reward system (the mesocorticolimbic circuit) is a group of neural structures responsible for incentive salience (i.e., "wanting"; desire or craving for a reward and motivation), associative learning (primarily positive reinforcement and classical conditioning), and positively-valenced emotions, particularly ones involving pleasure as a core component (e.g., joy, euphoria and ecstasy).
Psychology. Positive psychology is a field of psychological theory and research of optimal human functioning of people, groups, and institutions. [1][2] It studies "positive subjective experience, positive individual traits, and positive institutions... it aims to improve quality of life." [3]
Calcium triggering in the cerebellum is a critical mechanism involved in long-term depression. Parallel fibre terminals and climbing fibres work together in a positive feedback loop for invoking high calcium release. [16] LTD is involved in predictive control exerted by cerebellar circuitry and cerebellar reserve. [17]
Self-affirmation. Self-affirmation theory is a psychological theory that focuses on how individuals adapt to information or experiences that are threatening to their self-concept. Claude Steele originally popularized self-affirmation theory in the late 1980s, [1][2] and it remains a well-studied theory in social psychological research. [3][4 ...