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Mod 13/16
The Biology of Consciousness
| Term | Definition |
|---|---|
| Two-track mind | Dual Processing (Information is often simultaneously processed on separate conscious and unconscious tracks) |
| Blindsight | A condition in which a person can respond to stimuli without consciously processing it |
| Parallel Processing | unconscious processing of many aspects of a problem simultaneously (Right hemisphere) |
| Sequential Processing | Conscious processing of one aspect of a problem at a time (Left hemisphere) |
| Example of sequential processing | Learning how to parallel park -Drive past spot -Turn wheel away from curb -Back up into spot -Turn the wheel back to straighten |
| Example of parallel processing | What color is it? How big is it? What animal is it? How far away is it? What do I need to do? How do I get my body to do it? |
| Supports growth (Importance of sleep) | pituitary gland releases human growth hormone during slow-wave sleep |
| Evolutionarily protective (Importance of sleep) | Protected from harm if you are sleeping when it’s dark → this has been passed down |
| Recuperation (Importance of sleep) | Sleep helps restore the immune system/ Weakened neurons are pruned /Neurons rest |
| Consolidates memories (Importance of Sleep) ) | Replays recent learning and strengthens neural connections. |
| Importance of Sleep | Feeds creativity |
| Circadian Rhythm | -The way our bodies roughly synchronize with the 24 hour day -Later in adolescents |
| Sleep & Age | More frequent awakenings in older adults/ Later circadian rhythm in adolescents/ Infants spend the most time in REM (dreaming) sleep |
| NREM | (non-rapid eye movement) sleep |
| NREM-1 | Brief/ Hypnagogic sensations: Feel like you are falling /Brain “powering down” |
| NREM-2 | 20 minutes/ “Sleep spindles” on EEG /Can still be awakened without much difficulty |
| NREM-3 | slow-wave sleep/ lasts for about 30 minutes /brain emits large, slow delta waves and you are hard to awaken. |
| REM (rapid eye movement) sleep | Dreams/ paradoxical sleep: because the muscles are relaxed (except for minor twitches) but other body systems are active./ Increases as night progresses |
| We cycle through the stages like a rollercoaster all night | REM-1-2-3-2-1-REM |
| Consequences of Sleep Loss | Greater interpersonal conflict/ Reduced immune response/ Higher levels of depression/anxiety/ Increased appetite/ desire for simple carbohydrates/ Shorter lifespan |
Created by:
Sophia154
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