04 ಶಿಕ್ಷಕರಿಗಾಗಿ ಮನೋವಿಜ್ಞಾನ ಸರಣಿ - ಮೆದುಳಿನ ರಚನೆ

Historical Background:

• Franz Joseph Gall’s phrenology linked skull shape to personality—later debunked, but it helped spark interest in brain function localization.

Brain Function Localization:

• Different parts of the brain control different behaviors—e.g., movement, memory, speech, and emotion.

• Brain stimulation can alter personality, memories, and physical responses.

Phineas Gage Case Study:

• Survived a brain injury from an iron rod; his personality changed post-accident.

• Demonstrated the connection between brain regions and behavior.

Brain Myths Debunked:

• The idea that we use only 10% of our brains is false.

• Brain scans show most areas are active even in simple tasks.

Brain Structure Overview:

• Old Brain (Brainstem, Medulla, Pons, Thalamus, Cerebellum): Controls basic life functions like breathing, movement, and sleep.

• Limbic System (Amygdala, Hypothalamus, Hippocampus):

  • Handles emotions, hunger, memory, and reward.

  • Damage can lead to loss of memory or extreme emotional changes.

Cerebrum and Cerebral Cortex:

• Makes up 85% of brain weight.

• Split into two hemispheres connected by the corpus callosum.

• Each hemisphere and lobe has specialized functions:

  • Frontal: Planning, personality, judgment.

  • Parietal: Touch and body awareness.

  • Occipital: Visual processing.

  • Temporal: Hearing and speech comprehension.

Specialized Brain Areas:

• Motor Cortex: Controls voluntary movement.

• Somatosensory Cortex: Processes touch sensations.

• Association Areas: Handle higher thinking, learning, and memory.

Mind-Brain Connection:

• Biology and psychology are deeply linked.

• Understanding brain function is essential to understand human behavior.