States of Brain Activity—Sleep, Brain Waves, Epilepsy, Psychoses, and Dementia

All of us are aware of the many different states of brain activity, including sleep, wakefulness, extreme excitement, and even different levels of mood such as exhilaration, depression, and fear. All these states result from different activating or inhibiting forces generated usually within the brain. Here, we present brief surveys of specific states of brain activity.The term consciousness refers to subjective awareness of the external world and self, including awareness of the private inner world of one’s mind—that is, awareness of thoughts, perceptions, dreams, and so on. Even though the final level of awareness resides in the cerebral cortex and a crude sense of awareness is detected by the thalamus, conscious experience depends on the integrated functioning of many parts of the nervous system.

At the end of this lesson, students will be able to;

  1. To explain the sleep-wake cycle, types of sleep, patterns of sleep and theories of sleep
  2. To understand brain waves and their significance
  3. To understand neurological lesions especially Epilepsy-types,neural mechanisms involved and Alzheimer’s Disease
  4. To understand psychiatric disorders like like Psychosis, Schizophrenia

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cns-2.pdf (1.32 MB )