PS101 Lecture Notes - Lecture 3: Olfactory Bulb, Prefrontal Cortex, Twin Study
Document Summary
Change from resting to action potential allows information to travel: absolute refractory period (downtime, rest and re-strengthen, all-or-(cid:374)o(cid:374)e la(cid:449) (cid:894)a (cid:374)eu(cid:396)o(cid:374) fi(cid:396)es o(cid:396) it does(cid:374)"t(cid:895) Lock and key fit is necessary (at receptor sites) if it fits the neurotransmitter will be absorbed by post- synaptic neuron. If not absorbed (no fit) it follows reuptake process. Neural networks: patterns of neural networks (serve as perceptions, thoughts, behaviour, memories), increases in experience, increase our neural networks mostly done before the age of 25, elimination of less active synapses. Synaptic pruning: get rid of pathways we no longer need (lets brain reach its full capacity), ^ information that gets passed along through the networks. *synapse: space between the pre-post synaptic neurons, like a bridge. Peripheral nervous system: sends messages to central nervous system. Peripheral nervous system: somatic nervous system (voluntary movement) Examining the brain: eeg (electroencephalograph, lesioning, electrical stimulation, tms (transcranial magnetic stimulation, brain imaging, ct, pet, mri,fmri.
