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:
- 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.
- 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.
- It shows the characteristics of adaptation. When sense organs are continuously stimulated, they show a gradual decrease in sensitivity to the stimulus.
- Sensation is stimulated only if the stimulus is of certain minimum strength.