1. Dendrites
1.1. Get signals from other neurons
1.1.1. Requires minimum charge(like a gun, it fires or it doesn't)
1.1.1.1. In order to regulate intensity it increases/decreases 1- amount of neurons fired, 2- rate at which they fire
1.2. Types
1.2.1. Inhibatory
1.2.1.1. Decrease % neuron will fire (-)
1.2.2. Excitatory
1.2.2.1. Increase % neuron will fire (+)
2. Neurotransmitters
2.1. Synapse gap
2.2. Chemicals
2.2.1. Way of communicating between cells
2.2.2. Drugs can change communication:
2.2.2.1. Agonists - Increases effect of neuro transmitter
2.2.2.1.1. Adds NT OR
2.2.2.1.2. Stops clean up of NT OR
2.2.2.1.3. Fakes effect of NT
2.2.2.1.4. Amphetamines (coke, speed, etc.)
2.2.2.1.5. Prozac (anti-depression)
2.2.2.2. Antagonists - Slows effects of NT
2.2.2.2.1. Destroy NT OR
2.2.2.2.2. Hard to create more OR
2.2.2.2.3. Block connections on dendrite for NT
2.2.2.2.4. Curare - blocks motor NT - paralyzes
2.2.2.2.5. Alcohol - inhibits 1- inhibitory then 2- excitatory
3. Types
3.1. Sensory
3.1.1. Information gatherers
3.1.2. Intensity is coded by # & frequency of neurons fired
3.2. Motor
3.2.1. Control movement
3.3. Inter
3.3.1. Connect the two
3.3.1.1. Sensation + action
3.3.2. Do thinking
4. How is the brain wired?
4.1. There are many
4.1.1. 1 Trillion+
4.1.2. Interconnected - but not wired
4.2. They come in all shapes and sizes
4.2.1. Sometimes feet long
4.3. They have certain qualities
4.3.1. Can regrow in some parts
4.3.2. Damage resistant
4.3.3. Massively Parallel Distributing Processing
4.3.3.1. Neural Networks
4.3.3.2. Interconnectedness
4.3.3.3. A.I.
4.3.4. Extremely fast