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STRESS…… Objectives: By the end of the session the students will be able to- Define Stress Recognise physiological signs

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STRESS…… Objectives: By the end of the session the students will be able to- Define Stress Recognise physiological signs of stress Theories of stress. Physiological Psychology. Seeks to explain behaviour in terms of body systems.

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Presentation Transcript
slide1
STRESS……
  • Objectives:By the end of the session the students will be able to-
  • Define Stress
  • Recognise physiological signs of stress
  • Theories of stress
slide2
Physiological Psychology.
  • Seeks to explain behaviour in terms of body systems.
  • The key assumption is that ultimately all behaviour can be reduced to and explained at the level of physiological systems.
  • Examples: Central & Autonomic nervous system, & hormones.
slide3
What is stress?????
  • “A pattern of negative physiological states & psychological responses occurring in situations where people perceive threats to their well being which they may be unable to meet.”
  • R.Lazurus & S. Folkman (1984)
slide4
Stress cont…
  • Stress is a nonspecific response of the body to any demand made on it
    • Eustress: pleasant, desirable stress as in the stress associated with exercise
    • Distress: is unpleasant stress as in illness
  • Stressors are stimuli that cause stress
    • Stressors can be major (loss of a parent) or can be minor (parking your car)
  • Body eventually fails when subjected to chronic stress
slide5
What is stress cont….
  • There needs to event called a stressor e.g. exam,unemployment, long term illness.
  • When we feel uncomfortable there is a set of changes which are measured for signs of stress.
slide6
Physiological signs of stress. (GAS)
  • Seyle (1976) Animals react similarly to humans in variety of situations.
  • He developed theory called General Adaptation Syndrome
  • Defined as a non-specific physiological response to a variety of stressful stimulus.
slide7
General Adaptation syndromecont….
  • Stage 1: Alarm Reaction
  • Perceived threat, drop in BP, muscle tension, the body prepares for confrontation.
  • Stage 2: Resistance
  • Chemical production
  • Body keeps up defences, but becomes vulnerable.
  • Stage 3 : Exhaustion
  • Body begins to manifest signs of prolonged hormone secretion, in need of recovery e.g low blood sugar, kidney damage, low hormone levels.
slide8
Evaluation of GAS model
  • Allows good insight into causes of stress related illness.
  • But still does not answer the question of why we perceive some events as threatening.
  • Overall what is needed is the person to be involved in the equation.
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