Individual differences

• DAMAGE TO THE BRAIN

  Donta Page

  • Misshapen frontal lobe
  • Murdered, raped and stole

  Phineas Gage

  • Became impulsive and irrative

  > Damage to pre-frontal cortex in both people led to cognitive and behavioral change but there changes differed
• FREUD + PERSONALITY

  > During each stage of life, sexual energy is expressed in different ways through different body parts

  > Psychosexual stages of development

  > Shape future personality
• USE OF RECREATIONAL DRUGS

  > Some individuals who use drugs excessively change the chemistry of their brain leading to changes in behaviour