What is the main source of the electrical potentials recorded from the scalp of a human subject? In other words, what are brainwaves /EEG? The natural current found in skin The movements of our eyes The summated activity of nerve cell action potentials and postsynaptic potentials The signals generated by the contraction of muscle fibers that lie under the scalp 2) A hyperpolarization/inhibition would be caused by which of the following? opening of chloride channels closing of chloride channels opening of sodium channels closing of sodium channels

“ What is the main source of the electrical potentials recorded from the scalp of a human subject? In other words, what are brainwaves /EEG? The natural current found in skin The movements of our eyes The summated activity of nerve cell action potentials and postsynaptic potentials The signals generated by the contraction of muscle fibers that lie under the scalp 2) A hyperpolarization/inhibition would be caused by which of the following? opening of chloride channels closing of chloride channels opening of sodium channels closing of sodium channels ”

“ What is the main source of the electrical potentials recorded from the scalp of a human subject? In other words, what are brainwaves /EEG? The natural current found in skin The movements of our eyes The summated activity of nerve cell action potentials and postsynaptic potentials The signals generated by the contraction of muscle fibers that lie under the scalp 2) A hyperpolarization/inhibition would be caused by which of the following? opening of chloride channels closing of chloride channels opening of sodium channels closing of sodium channels ”