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Neuroplasticity is the process by which neurons adapt to a disturbance over time, and most often occurs in response to repeated exposure to stimuli. [27] Aerobic exercise increases the production of neurotrophic factors [note 1] (e.g., BDNF, IGF-1, VEGF) which mediate improvements in cognitive functions and various forms of memory by promoting blood vessel formation in the brain, adult ...
Classical conditioning occurs when a conditioned stimulus (CS) is paired with an unconditioned stimulus (US). Usually, the conditioned stimulus is a neutral stimulus (e.g., the sound of a tuning fork), the unconditioned stimulus is biologically potent (e.g., the taste of food) and the unconditioned response (UR) to the unconditioned stimulus is an unlearned reflex response (e.g., salivation).
The other is called trace conditioning, where the conditioned stimulus (tone) is shorter and stops before the unconditioned stimulus (air puff) begins, leaving a gap between the two stimuli. [2] This type of conditioning forces the subject, in this particular example, a bunny, to remember to link the conditioned stimulus with the unconditioned ...
The roots of periodization come from Hans Selye's model, known as the General adaptation syndrome (GAS). The GAS describes three basic stages of response to stress: (a) the Alarm stage, involving the initial shock of the stimulus on the system, (b) the Resistance stage, involving the adaptation to the stimulus by the system, and (c) the Exhaustion stage, in that repairs are inadequate, and a ...
Sensory preconditioning is an extension of classical conditioning.Procedurally, sensory preconditioning involves repeated simultaneous presentations (pairing) of two neutral stimuli (NS, e.g. a light and a tone), i.e. stimuli that are not associated with a desired unconditioned response (UR, e.g. salivation).
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Periodically, a tone was presented, for a brief amount of time, which co-terminated with electric shock to the metal floor (classical delay conditioning). The rats, upon receipt of the first shock, displayed the expected unconditional responses to the shock (e.g., jumping, squealing, urinating, etc.), however with subsequent presentations of ...
Once improvement in aerobic conditioning is apparent, for example in metabolism and oxygen uptake, the body progressively adapts to further training. [20] Aerobic conditioning can be anywhere from walking on the treadmill to mowing the lawn. The average healthy person should engage in 150–200 minutes of moderate aerobic exercise every week.