BIOL 1080 Lecture Notes - Lecture 8: Phineas Gage, Paramagnetism, Functional Magnetic Resonance Imaging
30 Apr 2013
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Lecture 8 : imaging and how the cns works. Positron emission tomography (pet) tracks glucose uptake (glucose tracer) , allows for metabolism to be seen functional magnetic resonance imaging (fmri) tracks blood flow (deoxyhemoglobin is paramagnetic) It has become apparent with the above techniques that areas of activity (function) do not always precisely coincide with defined anatomical zones. Slide 6: parts of the limbic system (emotions and memory) Cerebrum, thalamus, hypothalamus, hippocampus (memory and spatial learning), amygdala (processing of emotions ) and olfactory lobe. Slides 8 13 : neurotransmitter driven network (behavioral modification network) Networks identified by neurons using the same neurotransmitter. Norepinephrine network : modulates attention, arousal, sleep wake, learning, memory, pain, anxiety and mood. Serotonin network: modulates locomotion, pain, sleep-wake cycle, and emotions. Dopamine network: modulates motor controls and reward centers. (can be used to increase the lifespan of parkinson"s patients)
