Audio Transcript Auto-generated
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Hello Today we'll be talking about the major methods used
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to study the brain observable behaviors.
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Thes techniques are key to the field of neuroscience as
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they allow researchers to connect specific experiences.
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The structures and functions of the brain in the first
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three categories discussed well describe methods used to examine the
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effects on the brain.
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After changing a subjects experience.
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First monitoring electrical activity E g or electroencephalogram fee is
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used by neuroscientists.
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Directly. Monitor electrical activity.
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When neurons are active, there is a difference in charge
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between the top of the neuron.
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Also knows the cell body and the bottom of the
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neuron or the synaptic terminals.
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E g measures the changes in charge separation in the
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movement of charged particles in response to a behavior.
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For example, if you have a selections of neurons that
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are all active at the same time, then you're gonna
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have a decent amount of positive charge on one end.
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A decent amount of negative charge on the other end.
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E G data allows us to look at the size
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and timing of positivity relation to whatever the stimulus is
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e e g data.
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Give us information about signal timing, order of operations and
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signal magnitude.
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Because of this, E g exemplifies great temporal resolution but
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poor spatial resolution.
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In other words, it's easy for us to tell when
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the signal occurred in the brain, but not exactly where
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it occurred in the brain.