[Intro. to Psy Course Note] Ch 2

Brain and Behavior


What are the major divisions of the nervous system ?

  • Parasympathetic (housekeeper)
  • Sympathetic (trouble shooter)

How do nervous operate and communicate with each other ?

  • 突觸跟一堆神經傳導物質 去看講義圖片
  • if 失調
    • Alzheimer’s disease
    • Parkinson’s disease
    • Schizophrenia 思覺失調症
    • Autism
    • Anxiety
    • Depression

How does the nervous system change and grow ?

  • Neuroplasticity
  • Neurogenesis

How do the left and right hemispheres of the cerebral cortex differ ?

  • Two halves => hemispheres
  • Hemispheres are connected by corpus callosum(胼胝體)
  • Hemispheres lateralization(側化): Certain functions are controlled more by the left or right hemispheres
  • Spatial neglect 空間忽略
    • May pay not attention to one side visual space
    • May emerge in response to damage to one of the uhemispheres
  • Hemispheric dominance: left-brain/right-brain dominant
  • Handedness: right-handed 右利/left-handed 左利
  • Split-brain 腦裂
    • Corpus callosum is severed 切斷
  • Male and female brain
    • Men => front to back => go quickly from perception
    • Women => side to side => rationality, intuition

What are the different functions of the lobes of the cerebral cortex ?

  • Parietal lobe 頂葉
    • Sensation: touch, temperature, pressure
  • Occipital lobe 枕葉
    • Final destination for visual information
  • Temporal lobe 顳葉
    • Posture, coordination, muscle tone, memory of skills and habits
    • Hearing
  • Frontal lobe 額葉
    • Sense of self, motor control, higher mental abilities, cognitive activities
    • Mirror neurons 鏡神經元: 同理心
  • Motor cortex
    • Voluntary muscles 隨意肌
    • Frontal lobe
  • Somatosensory cortex
    • Parietal lobe: communicating with the opposite side of the body
  • Auditory cortex
    • Temporal lobe
  • Visual cortex
    • Occipital lobe
  • Association cortex 聯合皮質
    • High-level brain processes

What are the major parts of the subcortex ?

  • Hindbrain 後腦
    • Medulla 延髓
    • Pons 橋腦
    • Cerebellum 小腦
  • Midbrain 中腦
    • Connecting the hindbrain and forebrain
  • Reticular formation: flows from the hindbrain through the midbrain
  • Locked-in syndrome 閉鎖症候群
    • Damage to the brainstem
    • Is unable to move or communicate but still cognizant of what is happening around them
  • Thalamus 視丘: sensory info
  • Hypothalamus 下視丘: manage body’s internal state
  • Cerebellum 小腦: regulates coordinated movement
  • Brain stem: general alertness, warning system
  • Limbic system 邊緣系統: regulates emotions and motivated behavior
    • Hippocampus 海馬迴: memories
    • Amygdala 杏仁核: emotion, aggression
    • Hypothalamus 下視丘: 高級神經系統 內分泌控管
      • Sending messages to the pituitary gland (腦下垂體)

How does the endocrine system affect behavior ?

  • 去看講義 有圖有真相