Findings on Lateralisation

• What is the function of the cerebral cortex?

  • Responsible for higher cognitive functions like perception, cognition, motor control, etc.
  • Divided into different lobes that specialize in different functions
• What is the optic chiasm?

  It is where visual information crosses over.
• What are the two main divisions of the brain shown in the image?

  Cerebral Cortex and Cerebral Hemispheres
• What structure is mentioned that relates to the cross-over in motor control?

  Optic chiasm
• How does the right hemisphere communicate with the left hemisphere regarding language?

  It communicates to enable speech production
• Why is the cross-over of visual information important?

  It ensures each hemisphere receives opposite sensory information.
• What is the significance of the division of motor control in the brain?

  It ensures coordinated movements across the body
• How do the cerebral hemispheres differ in their functions?

  • Left hemisphere is dominant for language, logic, and analytical thinking
  • Right hemisphere is dominant for spatial awareness, creativity, and holistic thinking
• What is the function of Broca's area?

  It controls speech production
• What can a split-brain patient do when they see a word in their left visual field?

  Draw the word with their left hand
• How does the optic chiasm relate to language processing?

  It connects visual input to language output
• What is the function of the cerebral cortex?

  It is responsible for higher cognitive functions like perception, cognition, and motor control
• What is the name of the structure that connects the two cerebral hemispheres?

  Corpus Callosum
• What is the name of the structure that connects the two cerebral hemispheres?

  Corpus Callosum
• What are the two main divisions of the brain shown in the image?

  • Cerebral Cortex
  • Cerebral Hemispheres
• What color is the corpus callosum shown in the image?

  Red
• What does the ability to draw a ball with the left hand indicate about the hemispheres?

  They operate independently with separate consciousness
• How do the cerebral hemispheres differ in their functions?

  The left hemisphere is dominant for language, logic, and analytical thinking, while the right hemisphere is dominant for spatial awareness, creativity, and holistic thinking
• If you raise your left hand, which hemisphere is involved?

  Right hemisphere
• How does lateralization affect motor functions?

  Each hemisphere controls opposite body sides
• Which hemisphere primarily processes speaking and understanding language?

  Left hemisphere
• How does the severing of the corpus callosum affect behavior in split-brain patients?

  It leads to lateralized behaviors
• What principle does the cross-over of visual information illustrate?

  It illustrates the principle of brain lateralization.
• What is the significance of the middle (binocular) field in visual processing?

  • It is shared between both hemispheres.
  • Allows for depth perception.
  • Integrates visual information from both sides.
• What is the result of each hemisphere operating independently?

  Split-brain patients show lateralized behaviors
• What is the result of the brain functioning as two separate minds?

  It leads to dual consciousness
• What are the key areas involved in language functions?

  • Broca's area: Controls speech production
  • Wernicke's area: Enables language comprehension
• What is the purpose of the corpus callosum?

  To connect the two hemispheres
• Which hemisphere receives information from the left visual field?

  The right brain hemisphere.
• What is the function of Wernicke's area?

  It enables language comprehension
• What is the corpus callosum?

  A thick band of nerve fibers
• Why can't a split-brain patient say the word "ball" when it appears in their left visual field?

  Because it requires the left hemisphere
• What happens when the corpus callosum is severed?

  Each hemisphere operates independently
• What is the relationship between lateralization and the optic chiasm?

  Both involve cross-over for coordination
• What does the right hemisphere do when you raise your left hand?

  It sends signals to your muscles
• What happens when a word is seen on the left side of the visual field?

  Its meaning is processed in the right hemisphere
• What happens when the corpus callosum is severed?

  It prevents interhemispheric communication
• What does the optic chiasm demonstrate?

  It demonstrates lateralization of visual processing.
• How does the optic chiasm relate to motor control?

  It facilitates efficient movement coordination
• What is the term for the control of motor functions by opposite hemispheres?

  Lateralization