Psych 1010 Ch 2

receive and send signals from sense organs and other neurons. About 100 billion (like computers)

Sensory: respond to sensory like eyes, ears, nose, throat, and touch

Motor: brain and spinal cord to muscles for movement

Interneurons: link sensory and motor neurons. (*Most neurons)

Big clumps of neurons

release chemicals when neurons connect

Controls activities and integrates inputs

Receive info from other Neurons.

shifting change that moves down the axon. Basis of neural communication.

If neuron is sufficiently stimulated it fires. Either the action occurs or it does not.

fatty substance that helps impulses travel down axon

Where communication between neurons occur

affects motivation, rewards movements, and learning. Treat Parkinsons, ADHD, Depression, Schizo

Drugs: Cocaine, Amphetamine

Mood and sleep. Treats OCD, insomnia, depression

Drugs: Prozac, tricyclia

mimics effects of neurotransmitters

Blocks a particular receptor

Allows brain to affect organs of the body and receives info from them

• Smooth muscle
• Digestion / circulation

• Sympathetic and Parasympathetic
• (Emergencies)   (Slows things down)

Carries info from skin and sensory organs to central nervous systems. Includes somatic motor system.

Lobes and Landmarks

Vision

Distance, movement, touch

Makes us human different. Planning, specific memories, speech control, emotion

Contains motor strip

Sound, memory, and language

Large bundle of axons that connects two halves of the brain together

pinkish gray outer layer of brain

- Most mental processes

Creases of the brain

Areas of brain that bulge

emotion, motivation, fighting, fleeing, feeding, and sex.

Storing new memories

fear and anger

store new information elsewhere in the brain

most common type of neuroimaging