01:830:331 Lecture 23: lecture 23
24 Jul 2016
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~main excitatory neurotransmitter in brain and spinal cord. ~two main types of glutamate receptors you need to know. ~nmda receptor its ion channels allow both sodium and calcium into cell, but only opens if there is glutamate and the membrane is already depolarized. ~ampa receptor most common, controls sodium channel, so it causes epsp, normal synaptic activity. ~main inhibitory neurotransmitter in brain and spinal cord. ~the presence of an inhibitory nt is needed because otherwise there could be excitation everywhere at once and that"s a seizure. ~muscimol is a direct antagonist of gabaa receptors. ~problem with tabula rasa as it relates to sensation and perception. ~mind isn"t really a blank slate, there are some things that we are hard-wired with. ~and there are limitations on what we can learn/do because of our biology. ~our perceptions are not always an accurate reflection of reality. ~study of s&p is the origin of psychology. Empiricists think we acquire knowledge through experience and perception.
