Psychology 2075 Lecture 6: Sexual Arousal and Response

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Published on 22 Oct 2015
School
Western University
Department
Psychology
Course
Psychology 2075
HumanSexualityLecture6SexualArousalAndResponse

WhatisArousal?
● Arousalisaphysiologicalandpsychologicalstatethatreactstostimuli
● Sensitiveandresponsive
○ Increaseofbloodpressure
○ Sweating
● Sexualarousal:Bodypreparesforsexualactivities
● Topdownandbottomupprocesses
○ Bottomup:Fantasies
○ Topdown:Thingsgetwetorbecome
● Lotsofthingsarousepeople
○ Boobs
○ Penis
○ Butt
○ Celebrities
○ Porn

Whatplaysapart?
● Whichsensesplayarole?
● Vision
○ Girlswithnoclotheshealthyimage
○ Boyswithabsandvshapetorso
● Smell
○ Cologne
● Touch
○ Soft
● Taste
● Hearing
○ Voices–changeinpitchandsounds
● Aphrodisiacs
● Hormones
MateSelection
● Visual
○ symmetry,skintexture,waisttohipratio,torsoproportions
● Culturehasanimpact
○ Varianceinbodymarkings,shapeofbreasts,waisttohipratio
● Differenceswithsexualorientation
○ Feminizedormasculinefacialshapes
● Influenceofsocietalroles
● HOWEVER,personalpreferencehasthemostimpact
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
Vision
● .....Thebettertoseeyouwith...
● Whyisitadvantageousforustorespondsostronglytovisualinformation?
○ Gatherinformationwithouttalkingbutlooking
● Whatinformationcanweextractfromvisualcues?
○ Health,fertility,vision,smell,taste,ringfinger
● Domenrespondmoretovisualstimulithanwomen?
● Heterosexualandhomosexualmalesandfemaleswereexposedtoerotica
● Assessedgenitalandsubjectivemeasuresofarousal
● Females—reportlowerlevelsofarousal...BUT
○ Measuredarousallevelsweresimilar
● Novelty?
○ Menrespondmoretonovelstimuli

Vision
● Question:
● Dosexualarousalpatternsdifferbetweenmenandwomen?
● Aretheredifferencesbetweenheterosexualsandhomosexuals?
● Subjects:Heterosexualandhomosexualmenandwomen
● Design:Shownvariousvideosassessedgenital/subjectivearousal
● Results:
○ Malessexualarousaliscategoryspecific
○ Femalesdisplaylesscategoryspecificity—womenrespondtobothmaleand
femalesexualstimuli
○ Genderismismatchedwithsex
○ TranssexualsalsodisplayedcategoryspecificarousalChiversatel.(2007)
Smell
● Doesthenoseknowbest?
● Pheromones
○ Noodor
● Secretedexternallyandconveyinformationto,orproduceaspecificresponsein,others
ofthesamespecies—VomeronasalOrgan(VNO)
● AndrosteroneandCopulin
○ Fromsweat,vaginalsecretions
● Menstrualsynchrony
● Babiesrespondingtoparticularscentsofmother
● Attractiontoordislikeofbodyodoursofheterosexualmalesandfemalesversusgay
malesandlesbians
● Axillaryodorsmightbesexandsexualorientationspecific?
● Synthetichormoneyoucanputiton
● Heterosexuallikefemalescentsormalebodies
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
MHC
● Whymightweseethispreferenceswithmateselection??
● MajorHistocompatibilityComplex
● Setofgeneslinkedtoimmunesystem
● Morevariablesetofgenes=strongerandmoreflexibleimmunesystem
● Howdowegetoffspringwithastrongerimmunesystem?–Matewithpartnerswith
MHCdifferentthanourown
○ Attackforeigninvadersthroughtaste
● Study:smelltshirtswhatsmelledbestandnot
MHC
● CuesaboutyourMHCarehiddeninyoursmell(andtaste!
● Wedekindetal(1995)Tshirtstudy
● PreferthescentofpartnerswithMHCgenesdifferentfromtheirown
● Thisshiftswhenwomenareonthepill—theyselectthescentsofmenthathaveMHC
genesthataremoresimilarWhenonpill,seemoreandwhomgooffpill,everything
change
● Ifnotoncontraceptive,givethemcondoms
● Altersyourperceptionofothers
● WomenpairedwithMHCsimilarmenreportedlesssexualsatisfactionandweremore
likelytocheatontheirpartners
● Isthereatastetest??
● MHCisdetectedviasaliva
● BUT,impairedwithalcohol
● BUT,alteredwithbirthcontrol
● Biologicallyarousingorlearned?BOTH
● Studieslookingintoarousalresponsetogenitalsecretions–Arousalbytasteisalso
learned

Touch
● ErogenouszonesSeven!
● Especiallysensitivetotactilestimulation
● Primaryerogenouszones
● Underinfluenceofalcoholornot
● Lottobelearnedandbetaste*
● Studiesaboutthisandpeoplehavecertainpreferences
● –Areasrichlyendowedwithnerveendings
● Secondaryerogenouszones–Eroticallysensitized
● throughexperienceSpecificvsNonspecific

Taste
● Isthereatastetest??
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