Physiological bases of physical work

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Physiological bases of physical work
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Type of nervous system

• Type of nervous system determines rate of
  creation of new conditioned reflexes, strength
  and stability of these reflexes, intensity of
  external and internal inhibition, rate of
  irradiation and concentration of nervous
  processes, the capacity for induction and less or
  grater possibility for development of
  abnormalities of higher nervous activity.

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Structure of behavioural act

• According to theory of functional systems
  (Anochking) there are such stages of behavioural
  act
• 1) afferent synthesis 2) taking of decision
• 3) acceptor of result of action
• 4) efferent synthesis (or programming of action)
• 5) performing of action
• 6) evaluation of final result of action.
• Due to converging and processing of both sensory
  information and memory traces afferent synthesis
  in the brain is performed. Taking of decision is
  based on afferent synthesis by choosing optimal
  variant of action.

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Neuronal mechanisms of behaviour

• In the very lowest animals olfactory cortex plays
  essential roles in determining whether the animal
  eats a particular food, whether the smell of a
  particular object suggest danger, and whether the
  odour is sexually inviting, thus making decisions
  that are of life-or-death importance. The
  hippocampus originated as part of olfactory
  cortex.
• Very early in the evolutionary development of the
  brain, the hippocampus presumably becomes a
  critical decision-making neuronal mechanism,
  determining the importance of the incoming
  sensory signals. Once this critical
  decision-making capability had been established,
  presumably the remainder of the brain began to
  call on it for the same decision making.
  Therefore, if the hippocampus says that a
  neuronal signal is important, the information is
  likely to be committed to memory.
• Thus, a person rapidly become habituated to
  indifferent stimuli but learns assiduously any
  sensory experience that causes either pleasure or
  pain. It has been suggested that hippocampus
  provides the drive that causes translation of
  short-term memory into long-term memory.

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Biological feedback for coping stress
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