One New Theory Concerned with Dopamine Levels in the Brain

question 42

Multiple Choice

One new theory concerned with dopamine levels in the brain and schizophrenia suggests that:

• A)the limbic system may have too much dopamine and the cortex may have too little dopamine.
• B)hallucinations and other positive symptoms of schizophrenia are the result of decreased levels of dopamine levels throughout the whole brain.
• C)the limbic system may have too little dopamine and the cortex may have too much dopamine.
• D)hallucinations and other positive symptoms of schizophrenia are the result of decreased levels of dopamine in the fluid-filled cavities called ventricles.

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Definitions:

Nociceptors

Sensory receptors that detect harmful stimuli, sending pain signals to the brain in response to potentially damaging or dangerous conditions.

Pitch

The perceived frequency of a sound, determining how high or low it sounds.

Auditory Canal

The tube that runs from the outer ear to the middle ear, transmitting sound waves to the eardrum.

Cochlea

A spiral-shaped cavity located within the inner ear, instrumental in converting sound vibrations into nerve impulses for auditory perception.