Unit 3 Psychology Quiz

Lessons 1, 2, 4, 5, 6

The Nervous System

communication network within the body, that has three functions: receive, process and respond

Brain

Controls and runs everything our body does

Spinal Cord

Carry messages from the brain to different parts of the body

What are the two main parts of the nervous system?

Central nervous system and Peripheral nervous system

Central nervous system

The main control center that consists of the brain and spinal cord

Peripheral nervous system

Helps the central nervous system communicate with the rest of your body

Neurons

Responds to stimuli and transmit signal

Dendrites

Picks up information from other cells and transmit it to cell body

Axon

Transmit signals away from the cell body to other cells

Sensory Input

Sensory Organs: ears, eyes, mouths, tongue and skin

Motor Output

Activation of effector organs (muscles and glands) produces a response

Lesson 2

Lesson 2

Cerebrum

This controls your thinking, emotions and voluntary movement

Cerebellum

Controls Balance, coordination and movement

Cerebral Cortex

outer region of the cerebrum, containing sheets of nerve cells; gray matter of the brain

Hypothalamus

The area of the brain that produces hormones that control: Body temperature. Heart rate. Hunger. Mood

Hippocampus

learning and memory

Nerves

Connect the 2 halves of the brain

Lesson 3

Lesson 3

Sensation

When you five senses gather information and send it to your brain

Perception

the process of organizing and interpreting sensory information, enabling us to recognize meaningful objects and events

Absolute Threshold

The smallest amount of physical stimulation that is required to detect sensory input

Different Threshold

The minimum difference in physical stimulation to detect sensory input

Lesson 5

Lesson 5

4 types of drugs

Stimuli, Depressants, Opiates. and Hallucinogens

Hallucinogens

psychoactive drugs that affect perceptual experiences and evoke sensory images even without sensory input

Hallucinogens drugs are

MDMA(ecstasy), lysergic acid diethylamide(LSD), psilocybin, mushroom peyote and marijuana

Stimuli

Increase nervous system activity, in both mental and physical processes which include caffeine, Cocaine, methamphetamine and nicotine

Depressants

drugs that reduce neural activity and slow body functions, which includes alcohol

Opiates

Psychoactive drugs that reduce pain and produce a pleasurable feeling, which includes include heroin morphine and codeine

Psychoactive drugs are

mind-altering substances that change the brain neurochemistry b activating neurotransmitter systems

Lesson 6

Lesson 6

Circadian rhythms are

the regulation of biological cycles in regular daily patterns

Four stages of sleep

Stage 1: Begins when sleepers drift off and is shown on EEG as theta waves
Stage 2: breathing becomes more regular and sleepers become less sensitive to external stimulation. The EEG show burst of brain activity called sleep spindles and spikes called K-complexes
Stage 3 and 4: Slow-wave sleep- in stages 3 and 4 of deep sleep sleepers are hard to awaken and EEGs reveal large regular delta waves

REM Sleep is

Rapid eye Movements, dreaming, and paralysis of motor systems; EEGs show beta wave activity, which is associated with an awake, alert mind.

Manifest content

the actual content of the dream

Latent content

the hidden meaning of the dream

Slow-wave sleep happens in stages...

3 and 4

Lucid dreaming

certain aspects of wakefulness are maintained during a dreaming state. A person becomes aware that they are dreaming.

Collective consciousness

theoretical repository of information shared by all people across cultures