Psychology 1000 Lecture : sept 25 lecture- Synaptic Communication.docx

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Dr.Mike

Document Summary

Pass thru stomach-small intestine, caffeine goes into blood stream instantly, blood pressure, heart beat increase. Adenosines makes us drowsy: caffeine molecules have the same shape as adenasine so it tricks the brain making it think its adenosines, making people feel more awake. Diuretic drugs change the neuro-communication by acting/looking very similar to specific neurotransmitters and causing different effects. A new viral disease had been found that actually destroys the myelin sheath around a neuron. What is the likely result: slower neural conduction (myelin sheath is an insulator around axon, faster neural conduction, a lowering of threshold, decrease in hebbian synapses, smaller graded potentials. How do neurons work? (video) cortex: allows us to touch, see, and feel. Neurons send electric and chemical signals to communicate with each other. Neurons don"t touch each other, the gap in between is called synapse. There are about 100 billion neurons in the brain, processing information and hook up with other neurons to communicate.