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Sensation, Attention and Perception

Gujarat Board · Class 12 · Psychology

Quick revision notes for Sensation, Attention and Perception — Gujarat Board Class 12 Psychology. Key concepts, formulas, and definitions for last-minute revision.

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Key Topics to Revise

1

Sensation: Meaning, Definition and Receptors

  • Sensation is defined as 'an experience arising from excitation of sensory organs by stimuli from the external or internal environment'.
  • Sensation is a change in consciousness that arises when excitation reaches the sensory centres in the brain.
  • The sequence is: Stimulus → Sense Organ → Afferent Nerves → Brain → Sensation.
2

Types of Sensations

  • There are five types of sensations based on the five sensory organs: Visual, Auditory, Olfactory, Gustatory, and Touch.
  • VISUAL SENSATION: Vision has the most important role in human life. The key components are: Sclera (tough white outer layer), Iris (coloured area with ciliary muscles), Pupil (hole in the centre of th
  • The pupil contracts in bright light (ciliary muscles expand) and dilates in dim light (ciliary muscles contract).
3

Attention: Meaning, Definition and Nature

  • Attention is the process of selecting a definite stimulus from many available stimuli and concentrating on it.
  • The surrounding world has several stimuli but only a few enter the brain through the senses at any given time.
  • Attention involves physical, bodily and mental adjustment simultaneously.
4

Characteristics (Nature) of Attention

  • SELECTIVE: Attention is selective, voluntary, and intuitive. Out of many stimuli, an individual selects only a few and ignores others. Example: While watching a film, women focus on the heroine's clot
  • ADJUSTIVE: Attention involves psychophysical adjustment — physical, bodily, and mental adjustments. Example: Squinting to see distant objects, shading eyes from bright light.
  • EXPLORATIVE: Attention is purposive and involves keen observation, exploration, and manipulation of the stimulus before focusing. Example: Examining a saree in a shop — checking design, colour, and qu

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Full Notes

Key Concepts

Sensation is defined as a consciousThere are five types of sensationsAttention is defined as the processDeterminants of attention are factorsPerception is the complex mental process

Frequently Asked Questions

What are the important topics in Sensation, Attention and Perception for Gujarat Board Class 12 Psychology?
Key topics in Sensation, Attention and Perception include Chapter Overview: Sensation, Attention and Perception, Chapter Overview: Sensation, Attention and Perception, Complete Chapter Overview: Sensation, Attention and Perception. These are the concepts Gujarat Board Class 12 examiners draw on most — study them first, then practise related questions.
How to score full marks in Sensation, Attention and Perception — Gujarat Board Class 12 Psychology?
Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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