Human behaviour

  • The phases of human growth are characterized by a distinct set of physical, physiological, and behavioural features, at each stage.
  • Human behaviour, therefore, can be understood as the potential and expressed capacity for physical, mental, and social activity during the phases of human life.

 

Sensation

  • Sensation is the experience arising through the stimulation of sense organs.
  • Sensation is the process that allows our brain to take in information via our five senses, which can then be experienced and interpreted by the brain.
  • The external environment that surrounds us contains a wide variety of stimuli. They can either be felt, heard, seen, smelled, tasted.

 

Characteristics:

  1. Each sense organ is sensitive to a particular kind of stimulus and responds to only a restricted range of stimulation. For example, sounds between 20 to 20,000 Hz.
  2. Sensation is relative, and is affected by the background. For example, a diamond appears brighter against the background of black velvet. Against any other background it will not look so bright.
  3. It shows the characteristics of adaptation. When sense organs are continuously stimulated, they show a gradual decrease in sensitivity to the stimulus.
  4. Sensation is stimulated only if the stimulus is of certain minimum strength.
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