FINAL THINGS Flashcards
(11 cards)
Opiods
Heroin is a full agonist
Naloxone is a full antagonist
Methadone is a full agonist (slow)
Radio frequency pulse
On protons that proceed in the same frequency
Magnetisation vector is tilted to the transversal plane and precessions of the proton spins are aligned
Phase encoding gradient
Gives us the y-coordinate of the measured signal
Blob regions
Respond to colour variations
Interblob regions
Orientation, motion, depth
Cells of retina
Light: ganglion cells > bipolar cells > photoreceptors
Ganglion cells generate action potentials and send axons to optic nerve
Phase encoding gradient
changes the precession frequency of excited protons, depending on their location in gradient
Frequency encoding gradient
changes in the magnetic field within the selected slice
Amphetamine
reverses uptake transporter actively expelling DA and NA out of neuron
Also prevents DA uptake
Learned heading
Path distances encoded more posteriorly
Euclidean distances encoded more anteriorly