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Lecture 4

PSY100H1 Lecture Notes - Lecture 4: Naan, Morphine, Indian Anna


Department
Psychology
Course Code
PSY100H1
Professor
Alison Luby
Lecture
4

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PSY100 Lecture #4 Jan 30, 2012
Kadavulai vendukindrain indha saniyangal kathaikaamal iruka. Aravaasi mulai sakiru ivangalodu
paichodu. Sapidum saapadu kooda koopa vasanam varukirathu. Eppadi palkalaikalakammukku
vandangal endrum theriyevillai. Muka puthakamai kilassukul papangal. Avangal adutha aakalin
mukavariye sinnapillai inipodu thedum saniyan pol parparkal. Ketka ketka veruppu varido. Pasikum
nerathil sapadai patti kathaikirangkal. Kilassu thodanga innum iruvathu nimitham irukindrathu. Indha
mozhiyil pesinaal thaan avangalukku theriyadu avangalai patti pesukirain endru. Pana pisasukala
nadikirangal. Perazhagi endrum nadikarangal. Oru aanin padathai pattu oru semenai “Ithu un
kadhulikum aan thozhana” endru kettu antha athu vida semenai sollira “aam anai nangal vezhiyei nangal
sellavillai. Avangal sirukkum pozhluthu pani naiygal pol siripangal. Sakaporain pol irukindrathu. En madi-
mel-il enno vilayadinen. Anda gundu kuthuthal vilayathu. Atha pattu avangallum atha patti
kathakathodanginal. Avangal oru padiyenukku “Nee munthi asingama irundai. Athu sirikavendiya
vishiyam allava endru adutha sanniyangalluku solkiral. En kaluthai arukaporen kathachukondu irundal.
Saniyangal narukathiku thaan poovangal. Ithil irrukum sila angilam varthaikal mozhi matrum
seiyapaathein (ennaku theriyum seriyana varthai illai). Intha mozhiyil naan kathakake kovam pokuthu.
Avangal pettaikal paatu sirikirangal. Munjaiyil sooduthaneer uthavendrum. Avangal ulaga mulu silanthi
patti kovapadurarkal, athu illama vazhalatham kilassil, anna athu palkalaikalakathin ulaga mulu silanthi.
Ippoluthuku avalam thaan, intha mulakettai genmangalluku oru alavu illai. Vannakam!
Properties of Psychoactive Drugs
. Four classes: depressants, stimulants, opiates/narcotics, and psychedelic/hallucinogens
. Depressants range from stimulation to sedation (e.g. alcohol)
. Using it a lot develops a tolerance
. If your tolerance is too high and you stop taking it, it ends in withdrawal
. Stimulants (e.g. coffee, nicotine, cocaine, amphetamines)
. Opiates/narcotics (e.g. morphine, heroin)
. Psychedelics/hallucinogens (e.g. marijuana, ecstasy/MDMA [which also has stimulant properties so
hard to place]) Serotonin like substance leads to stopping the production of Serotonin
Sensation and Perception
. Sensation is a detection of physical energy which sends the information to the brain (mostly data
rather than an image)
. Perception is the interpretation of those signals (making an image for it)
Sensation & Perception Processes
. Transduction making energy input (e.g. sound) into neural activity (i.e. an action potential)
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