AP Psychology - Unit 3 Review

What is the primary function of the neurotransmitter dopamine?

• Regulating sleep

• Regulating movement, attention and learning, and is a part of the pleasure system

• Regulating mood and hunger

• Regulating fear and aggression

An _______ _______ is when the neuron's membrane potential has reached the threshold and a signal is sent down the neuronal axon

Which answer correctly describes the process of producing a reflex?

• Sensory receptors receive stimulus and delivers it to a sensory neuron. The sensory neuron sends signal to an interneuron in the spinal cord, where it's processed. The interneuron then sends a signal now the motor neuron, causing muscles to move.

• Sensory receptors receive the stimulus and send it to the brain, where the somatosensory cortex processes it and sends a signal down a motor neuron

• A feeling of fear activates norepinephrine release, which causes motor neurons to fire and contract muscles to move

• A reflex response does not involve the nervous system

In the peripheral nervous system, the __________ system is responsible for arousal, while the _____________ system calms the body down

Which lobe is responsible for functions such as higher-level cognition and planning, personality, behavior, and contains the motor cortex?

• Frontal lobe

• Parietal lobe

• Temporal lobe

• Occipital lobe

What area of the brain is responsible for controlling the pituitary gland in the endocrine system and regulating hunger, thirst, sexual behavior, and reward?

• Corpus callosum

• Nucleus accumbens

• Somatosensory cortex

• Hypothalamus

What are the brain's association areas and how do they separate humans from other mammals?

• Areas of the brain that are not involved in motor or sensory functions; allows for tasks like planning and higher-level thinking

• The limbic system; allows for humans to regulate fear and act on impulses, whereas other organisms cannot

• I don't know.

• Both options are correct

A demyelinating disorder, such as multiple sclerosis, would cause all of the following EXCEPT...

• A reduction of white matter in the central nervous system

• An increased rate of neuronal conduction

• A slower propagation of signals along the axon

• A deficiency of sensation

• A decreased neuronal insulation

A split-brain patient has a picture of a dog flashed to his right hemisphere and a cat to his left hemisphere. He will be able to identify...

• cat using his left hand

• dog using his right hand

• dog using either hand

• cat using either hand

• cat using his right hand

Which of the following is most closely associated to the idea of epigenetics?

• Eye color

• Height at birth

• Gene expression being influenced by environmental factors

• Phenotypes purely based on gene expression