This chapter will cover the following important topics:

1. Basic concept of personality.

2. Freud’s psycho-sexual theory of development.

3. Defence mechanisms.

4. Other important theories of personality.

5. Assessment of personality.

6. Mental health and hygiene.


Personality, in general, refers to the physical or external appearance of an individual. This notion of personality is based on facial impressions, which is not correct.


The term ‘personality’ is derived from the Latin word persona, which means mask used by actors in the Roman theatre for changing their facial makeup.

Personality refers to ...

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