1. Sensation is the process of receiving and transmitting information to the brain from internal and external stimuli through the five senses: vision, hearing, smell, taste, and touch. 2. Perception is the process of interpreting sensory information and deriving meaning, which occurs after sensation. It allows us to understand objects and facts. 3. Unusual perceptual experiences can include illusions, where perception does not match reality, and hallucinations, where perception occurs without external stimuli. The document discusses different types of illusions and hallucinations.

1. Sensation And Perception
Presented By:
Menal Hasan

2. Outline
 Sensation
 Types of sensation
 Perception
 Unusual perceptual experiences
 Illusion
 Hallucination
 Conclusion

3. Sensation:
 Sensation is the process of receiving, translating, and
transmitting information to the brain from the external and
internal environment. (Huffman)
 An experience that takes place through a sense organ is
called sensation.

4. Types of Sensation:
There are five types of sensation which is categories on the
basis of sense organs,
1. Visual sensation
2. Auditory sensation
3. Olfactory sensation
4. Taste sensation
5. Tactual sensation

5. Perception
 Perception is a process of getting to know objects and
objective facts by use of senses. (Woodworth)
 In other words we can say that the first response to a
stimulus is sensation and perception is the next
response following sensation.

6. Unusual perceptual experiences:
 It is quite possible that the same object may be perceive
differently by different people or by the same person on
different occasions.
 There are two errors of perception:
A. Illusion
B. Hallucination

7. Illusion:
 A wrong perception or miss perception is known as
illusion.
 In illusion we take a wrong meaning of the stimulus
present before us it is related with the stimulus.

8. Types of Illusion:
 Illusion regarding distance
 Illusion regarding size and shape of the things
 Illusion regarding movement and speed

9. Hallucination:
 Hallucination is a false perception.
 Here a person experiences of the stimulus even in the
absence of it.
 Hallucination involve senses things while awake that
appear to be real but instead have been created by mind.

10. Types of Hallucination:
There are two types of hallucination.
 Visual hallucination
 Auditory hallucination

11. Conclusion:
The first response to any stimulus is sensation which is
perceive by our sensory organs i.e eye, nose, ear, tongue
and skin than perception is second response to the
sensation.