PSYCH 2AA3 Lecture Notes - Lecture 3: Functional Magnetic Resonance Imaging, Frontal Lobe, Myelin
23 Sep 2017
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Document Summary
Neuron: a cell that specializes in receiving and transmitting information. Cell body: located at the centre of the neuron, is the basic biological machinery that keeps the neuron alive. Dendrites: the receiving end of the neuron, receives input from other neurons. Axon: send information to other neurons, the axon is wrapped in myelin. Myelin: a fatty sheath that allows it to transmit information more rapidly. Terminal buttons: small knob at the end of the axon, releases neurotransmitters- chemicals that carry information to nearby neurons. Synapse: the gap between one neuron and the next, neurotransmitters cross synapse to carry information between neurons. The frontal cortex is responsible for personality, carrying out plans. Left hemisphere is for language and reasonings skills. The right hemisphere is for perception, spatial representation and motor skills. Electroencephalography (eeg) - measuring the brains electrical activity from electrodes placed on the scalp. Functional magnetic resonance imaging (fmri) - uses magnetic elds to track the blood.
