Functions of the Nervous System

This video provides a comprehensive review of Unit 1 for AP Psychology, covering the biological basis of behavior. It discusses the nature vs. nurture debate, the nervous system, neural transmission, and the effects of psychoactive drugs. The video also explores brain structures, sleep and consciousness, and sensory systems. It emphasizes the importance of active learning and provides resources for further study.

Which concept suggests that both genetic and environmental factors influence human behavior?

• Heredity

• Nature and Nurture

• Nature vs. Nurture

• Environmental Determinism

What is the primary function of the peripheral nervous system?

• To connect the CNS to the body's organs and muscles

• To regulate emotions

• To process sensory information

• To control voluntary movements

Which type of neuron is responsible for sending signals from sensory receptors to the central nervous system?

• Afferent neurons

• Motor neurons

• Interneurons

• Efferent neurons

What happens during an action potential in a neuron?

• The neuron enters a resting state

• The neuron absorbs neurotransmitters

• The neuron fires and sends an impulse down the axon

• The neuron becomes hyperpolarized

Which neurotransmitter is primarily associated with muscle action and memory?

• Dopamine

• Serotonin

• Acetylcholine

• GABA

What is the role of the cerebellum in the brain?

• Regulating emotions

• Coordinating voluntary movements and balance

• Processing auditory information

• Controlling the endocrine system

What is the primary function of the thalamus?

• To relay sensory information to the cerebral cortex

• To process emotions

• To control voluntary movements

• To regulate sleep-wake cycles

Which sleep stage is characterized by rapid eye movement and vivid dreams?

• Non-REM Stage 3

• Non-REM Stage 2

• REM Sleep

• Non-REM Stage 1

What is the term for the smallest amount of stimulation needed to detect a sensation 50% of the time?

• Sensory adaptation

• Absolute threshold

• Difference threshold

• Habituation

Which theory suggests that dreams help process and strengthen our memories?

• Activation synthesis theory

• Cognitive theory

• Restoration theory

• Consolidation theory