Occipital BA

• Occipital lobe brodmann's area

  • BA 17
  • BA 18
  • BA 19
• BA 17

  Primary Visual Area
• BA 18, 19

  Secondary Visual Are/ Visual Association area
• Primary Visual area aka

  Striated cortex
• Secondary visual area

  Parastraiated cortex
• Function of BA 17

  Vision
• Function of BA 18, 19

  INTERPRETS images perceived by BA 17
• Unilateral lesion in BA 17

  Contralateral Homonymous Hemianopsia
• Bilateral lesion in BA 17

  Total/ Cortical blindness
• BA 18 only lesion

  Color Agnosia/ dyschromatopsia
• BA 18, 19 lesion

  Visual agnosia
• most common visual agnosia

  • Prosopagnosia
  • Balint's/ Simultagnosia
• Prosopagnosia- cannot name familiar face

  Balint's/ Simultagnosia- cannot interpret whole picture