HMB200H1 Lecture Notes - Lecture 17: Striatum, Frontal Lobe, Long-Term Depression
Document Summary
Lecture 17: mental disorders and limbic systems. Amygdala and hippocampus talks to each other by way of limbic system pathways. Important in anxiety and depression. Mental disorders: anxiety disorders, related to amygdala and tranquilizers, depression. Schizophrenia: delusion thoughts related to higher human executive functions, diagnostic and statistical manual (dsm5) of american psychiatry association. Psychiatrists reorganize all diagnosis every 5 years. Phobias: specific fears, often learned. Treated by psychotherapy progressive desensitization . learned fears that involved particular experience. When a normal fear inhibits your ability to do certain things = phobia. Treatment: extinction therapy or progressive desensitization. Exposed to it more and more = desensitized. Increase realistic experience to that fear to de- sensitize pavlovian cues. Pavlovian process = extinction therapy. Can eventually come closer and closer to contact to lose the fear: no drugs required, fast. Panic attacks: severe sympathetic overreactions to uncomfortable situations. Post- traumatic stress: fear brought on by specific life threatening trauma, e. g. , violence or accident.
