PSYCH 111 Chapter Notes - Chapter 3: Endocrine System, Reuptake, Warini
Document Summary
You can only get causation from a true experiment (lab experiment) Drugs effect in many ways/mice on cocaine absorb less glucose in their brains/less nueron activity. Nuerons are the basic building blocks of the brain. Sensory neurons, motor neurons, interneurons (inbetween- make the conection between sensory and motor. 1000 dendrites per neuron/ so many possibilities for connection. Law of forward conduction/ messages can only go from dendrites to axon terminals not the other way. Action potential- electrical impulse that surges along an axon, caused by an influx of positive ions. Produce all or none response / the message either sends or doesn"t. Absolute refractory period- no way there will be another message sent. Relative refractory period- there is a chance that another message will be sent but it would require a lot of energy. Two types od messages: inhibitory (antagonists) or excitatory (agonists) Motor control over muscles, learning, memory, sleeping, and dreaming. Motivation, reward, and motor control over voluntary movement.
