JAPAN 2 Lecture Notes - Lecture 11: Blood Vessel, Methylphenidate, Alcohol Dependence
Document Summary
Part of the book chapter 4 types of drugs, and articles. Alcohol and the brain- pharmacological insights for psychiatrists. Minimizing the harms of legal and illegal drugs. They act in different way (as we saw in body and behavior ) Drugs have different kinds of effect on synaptic transmission: agonists drugs that facilitate the effects of a particular neurotransmitter, bind to postsynaptic receptors and activate them. Opening an ion channel (=response): e. g. nicotine. It binds to and activate the ach receptors in skeletal muscle (=nicotinic ach receptor) Inverse antagonist same as agonist but it completely closes the ions channels causing opposing reaction: e. g. if instead of waking you up, redbull made you more tired, antagonist or receptor blockers. Drugs that inhibit the effects of a particular neurotransmitter: bind to postsynaptic receptors without activating them block access of usual neurotransmitters, e. g. curare arrow tip poison used by south american natives to paralyze their prey.
