Sensation And Perception

Question 1

What are the Basic concepts of Sensation and Perception?

Answer 1

1. Thresholds
   - absolute thresholds
   - difference thresholds
2. sensory Adaption
3. Perceptual Set
4. context effects
5. Subliminal Persuasion
6. Emotion and Motivation

Question 2

Explain Thresholds in context of Sensation and Perception.

Answer 2

1. absolute thresholds
   - Minimum stimulus intensity required to detect a stimulus 50% of the Time
2. difference thresholds (Just Noticable Difference)
   - smallest detectable Difference between two stimuli
   - weber‘s law: for two Stimuli to be perceived as different, they must differ by a constant proportion

Question 3

Explain Sensory Adaption in context of Sensation and Perception.

Answer 3

• diminished sensitivity due to constant stimulation
• allows focus on changes in the environment than constants

Question 4

Explain Perceptual Set in context of Sensation and Perception.

Answer 4

Mental predisposition to perceive one thing and not another based on expectations
- influenced by: Context, cultur and experiences

Question 5

Explain Context Effects in context of Sensation and Perception.

Answer 5

Perception is influenced by surrounding environment or context

Question 6

Explain Subliminal Persuasion in context of Sensation and Perception.

Answer 6

• Stimuli below the absolute threshold may influence by behaviour without conscious awareness

Question 7

Explain Emotion and Motivation in context of Sensation and Perception.

Answer 7

• emotions and desires shape perception
• Motivation: Hunger makes Food-related cues more noticable