Psychology Chapter 3: The Biological Bases of Behavior
Subject:
Psychology [1]
The Neural Impulse: Using Energy to Send Information pg75
• Neuron At Rest
-The Neuron at rest is a small battery, from the uneven Ion charges from the fluid around it of Sodium (Na) and Potassium (K).
-Resting Potential – The Stable, Negative Charge when the Cell is inactive.
•The Action Potential
- Action Potential – A very brief shift in a Neuron’s electrical charge that travels along an axon.
-Absolute Refractory Period – Minimum length of time after an action potential during which another action potential cannot begin. Only about 1 or 2 Milliseconds.
-All-Or-None Law – Neural Impulses either Fire or don’t fire. There is no Half-Fire. A faster Rate of transmission means a stronger Stimulus.
•The Synapse