What Is the Function of an Electroencephalogram

question 155

Multiple Choice

What is the function of an electroencephalogram?

• A) It is a record of action potential activity in the cerebral cortex.
• B) It represents the momentary collective postsynaptic activity in the cerebral cortex.
• C) It displays smaller brain waves when the eyes are open than when the eyes are closed.
• D) It displays smaller brain waves in brain death.

Recognize the molecular mechanisms by which various stimuli (e.g., chemical, mechanical) activate specific sensory receptors, leading to the opening or closing of ion channels.

Grasp the principle of sensory adaptation and its behavioral implications, such as the ability to ignore constant stimuli while remaining sensitive to new information.

Explain the distinction between different types of sensory receptors (e.g., chemoreceptors, mechanoreceptors, thermoreceptors, photoreceptors) based on the type of stimulus they detect.

Identify how sensory intensity and sensation type are encoded within the nervous system through the frequency of action potentials and the specificity of receptor cell types.