Class Notes (1,100,000)
CA (630,000)
U of G (30,000)
PSYC (4,000)
PSYC 2740 (200)
Lecture 7

PSYC 2740 Lecture Notes - Lecture 7: Twin Study, Behavioural Genetics, Heritability


Department
Psychology
Course Code
PSYC 2740
Professor
Stephen Lewis
Lecture
7

This preview shows page 1. to view the full 4 pages of the document.
The$biological$domain:$genetics$and$personality$
!"#$%$&'(
)*&#+,-.
/0'(1,&02(20#(.2*"'($3(&#+#.(4+"(5#6.$+4%,2'(7#(-$+26$8#6.,4%
-
Genes$and$personality:$Key$issues
)+8,6$+1#+2(
9#+#2,-.(
:,33#6#+-#(7#2;##+(5#$5%#("*#(2$(4(-#624,+(-4*.#(<,+(5#6-#+24&#=
-
>#6,247,%,2'?(41$*+2($3(50#+$2'5,-(846,4+-#(,+(4(&6$*5("*#(2$(&#+$2'5,-(
846,4+-#(
-
9#+$2'5,-(846,4+-#?(,+",8,"*4%(",33#6#+-#.(,+(5#$5%#.(&#+#.
-
)+8,6$+1#+24%,2'?(41$*+2($3($7.#68#"(846,4+-#("*#(2$(#+8,6$+1#+2(
-
Hereditability$vs$environmentality$
@41,%'(.2*",#.(
-
A;,+(.2*",#.(
-
B"$52,$+(.2*",#.(
-
Behavioural$genetics$(BG)$methodilogies$
9#+#2,-(6#%42#"+#..($3(341,%'(1#17#6.(
C#6.$+4%,2'(.,1,%46,2'(
)D41,+#(-$66#%42,$+.(7#2;##+(
-
BG$methods:family$studies$
E546#+2(4+"(-0,%"6#+(FGH
-
I,7%,+&.(FGH
-
J%$.#6(6#%42,8#.(.0$*%"(048#(1$6#(5#6.$+4%,2'(.,1,%46,2,#.
964+"546#+2.(4+"(&64+"-0,%"6#+(KFH
-
Family$studies$and$shared$genes$(%)
L$+$M'&$2,-(<LN=(2;,+.(
-
).2,142#(0#6,247,%,2'(8,4(.,1,%46,2'($3(?(LN(8.(:N(2;,+.
-
>#6,247,%,2'OKPK<61MQ6"M=
R1MP-$66#%42,$+(7#2;##+(LN(2;,+.(3$6(4(264,2(
R"MP-$66#%42,$+(7#2;##+(:N(2;,+.(3$6(4(264,2(
>#6,247,%,2'(3$61*%4(
-
BG$methods:$twin$studies$
I$1#2,1#.(:N(",4&+$.#"(4.(LN
§
)+8,6$+1#+2.(3$6(LN(2;,+.(ST(",33#6#+2(8.(:N(2;,+.
)U*4%(#+8,6$+1#+2.(
-
BG$methods$twin$studies-critical$assumptions
B"$52#"(-0,%"6#+(4+"(4"$52,8#(546#+2.
B%.$?(4"$52#"(-0,%"6#+(4+"(7,620(546#+2.
)D41,+#(-$66#%42,$+(7#2;##+(
-
B..*152,$+($3(6#56#.#+242,8#+#..?(-0,%"6#+V546#+2.(6#56#.#+2(&#+#64%(
5$5*%42,$+
I#%#-2,8#(5%4-#1#+2?(4"$52,8#(-0,%"6#+(5%4-#"(;,20(546#+2.(.,1,%46(2$(20#,6(
7,620(546#+2.
W,1,242,$+.(
-
BG$methods:$adoptions$studies$
/0#6#(0#6#",2'(P(-$66#%42,$+($3(20#(264,2(7#2;##+(20#(2;,+.((
J$17,+#.(20#(.26#+&20.($3(2;,+(X(4"$52,$+(.2*",#.(
-
BG$method:$twins$raised$apart$
L#4+,+&Y(#+8,6$+1#+2(4%.$(5%4'.(4(6$%#ZZ
§
A0#6#(,.(.$1#([,+"($3(&#+#2,-(-$15$+#+2
§
A6*#(3$6(4(;,"#(64+&#($3(264,2.(
§
\*2(,2.($+%'(1$"#642#(]
C)S(1$"#%^(0#6,247,%,2'($3(5#6.$+4%,2'(264,2.(
§
>#6,247,%,2'($3(47$*2(ZF
\,&(F<&#+#64%%'(
-
Major$findings:$big$5$traits$
S#*6$2,-,.1(
-
)D2648#6.,$+
-
!+-6#4.#(20#(%,[#%,0$$"($3(.1$[,+&(4+"("6,+[,+&
I#+.42,$+(.##[,+&
-
L$"#642#(0#6,247,%,2'(3$6(.1$[,+&(4+"("6,+[,+&(047,2.(
-
A0,.(,.(-$+.,.2#+2(4-6$..(.#D#.
L$6#(0#6,247,%,2'(3$6(4%-$0$%,.1(<8.Z("4,%'("6,+[,+&(047,2.
-
Major$findings:$smoking$and$drinking
J6$..(&#+"#6(,"#+2,3,-42,$+
C.'-0$%$&,-4%(",.-$13$62(;,20($+#.(7,$%$&,-4%(.#D(
9#+"#6(,"#+2,2'(U*,2#(0#6,247%#(<Z_K=
9!:(",4&+$.,.(
-
Major$findings:$gender$identity$disorder$(GID)
`#6'(.247%#
a4MM?(7$6+(4(7$'Y(;4+2.(2$(7#(4(&,6%(6,&02(36$1(;0#+(.0#(-$*%"(24%[(
-
:$('$*(20,+[(9!:(,.(1$6#("*#(2$(20#(#+8,6$+1#+2($6(&#+#2,-.b(/0'c(
-
I0$*%"(,2(7#(4(",4&+$.,.b(/0'V;0'(+$2(b
-
GID$video
9#+#64%%'Y(+$+Q.046#"(#D5#6,#+-#.(4+"(#+8,6$+1#+2.(',#%"(",33#6#+-#.(,+(
5#6.$+4%,2'(<8.Z(.046#"=
-
Shared$vs.$non$shared$environmental$influences
9#+$2'5#Q#+8,6$+1#+2(,+2#64-2,$+
-
9#+$2'5#Q#+8,6$+1#+2(-$66#%42,$+.
-
Analyzing$how$genes$and$environment$interact$
L*.,-?(#D2648#62.
§
d*,#2?(,+26$8#62.(
§
>$;(;#%%('$*(.2*"'(,+(-#624,+(#+8,6$+1#+2.("#5#+".($+('$*6(%#8#%($3(
,+26$8#6.,$+($6(#D2648#6.,$+
L$6#(4+2,.$-,4%(5#6.$+4%,2,#.(4+"(8,$%#+-#]
B7*.#X%$;(LBTB
§
W#..(4+2,.$-,4%(5#6.$+4%,2,#.(4+"(8,$%#+-#]
B7*.#X0,&0(LBTB
§
)D415%#(K(<-$66#%42,$+=
:,33#6#+2,4%(6#.5$+.#($3(,+",8,"*4%.(;,20(",33#6#+2(&#+$2'5#.(2$(.,1,%46(
#+8,6$+1#+2(
-
Genotype$environment$interaction
L*.,-4%(47,%,2'(4+"(1*.,-4%(#+8,6$+1#+2(
§
C4..,8#?(546#+2.(56$8,"#(7$20(&#+#.(4+"(#+8,6$+1#+2.(2$(-0,%"6#+
B-2,8#([,".(14'(&#2(5*2(,+2$(.5$62.Y(,+4-2,8#(14'(+$2(
§
R#4-2,8#?(546#+2.(<$6($20#6.=(6#.5$+"(2$(-0,%"6#+(",33#6#+2%'Q74.#"($+(
-0,%"6#+e.(&#+$2'5#.(
I$1#$+#(8#6'(.$-,4%%'(4+D,$*.(;$+2(5,-[(#+8,6$+1#+2.(2042(20#6#(,.(
4(%$2($3(.$-,4%(,+2#64-2,$+.
§
B-2,8#?(5#6.$+(;,20(4(5462,-*%46(&#+$2'5#(-6#42#.(4(5462,-*%46(
#+8,6$+1#+2(
:,33#6#+2,4%(#D5$.*6#($3(,+",8,"*4%.(;,20(",33#6#+2(&#+$2'5#.(2$(",33#6#+2(
#+8,6$+1#+2.
-
Genotype$environment$correlations$
W$+&#6(:f:R(.264,+.(,+(+$8#%2'(.##[,+&
§
S#*6$2,-,.1(<4+"("#56#..,$+=(14'(7#(%,+[#"(2$(20#(.#6$2$+,+(
264+.5$62#6(&#+#(<FQ>AA=
§
)D415%#.?
L#20$".("#.,&+#"(2$(,"#+2,3'(.5#-,3,-(&#+#.(%,+#"(;,20(.5#-,3,-(264,2.(
-
Molecular$genetics$
W4#L1
A*#."4'Y( a4+*46'( gGY(KGhi
Gi?fh
You're Reading a Preview

Unlock to view full version