PSYC 314 Lecture Notes - Lecture 10: William Osler, Walter Bradford Cannon, Noxious Stimulus
Document Summary
They all are events that induce stress. The simplest explanation is the most plausible until evidence is presented to prove it false. Why have 1000 different theories when you can have 1 same model. Sir william osler, md; johns hopkins university. Varying noxious stimuli same physiological response. He created the fight or flight response to stress. If someone rings the fire bell, or yells bomb! , our sympathetic nervous system will kick in. Secretion of adrenaline(from the adrenal gland), noradrenaline (top of kidneys) Fight or flight response: acute vs chronic stressors. Point is, if you have an adrenal, sympathetic nervous system stimulating reaction during an exam, it will have a counterproductive effect. Versus if you"re running from a wildfire, or have a sudden physical threat imposed on you. Stress = orchestrated set of biological responses to noxious stimuli. General adaptation syndrome: triad of repsonses!: enlargement of adrenals, shrinkage of the thymus (front base of neck, stomach ulcers.
