PSYC 2400 Lecture Notes - Lecture 3: John B. Larson, Lasso Of Truth, Dsm-5

• School: Carleton University
• Department: Psychology
• Course: PSYC 2400
• Professor: Adelle Forth

Document Summary

If the powder was dry, then the suspect was guilty: both te(cid:272)h(cid:374)i(cid:395)ues (cid:396)el(cid:455) o(cid:374) the sa(cid:373)e (cid:272)o(cid:373)(cid:373)o(cid:374) p(cid:396)i(cid:374)(cid:272)iple . Common principle: if lying or guilty -> feel nervous, anxious -> less saliva -> dry mouth, the (cid:449)hole p(cid:396)e(cid:373)ise of the pol(cid:455)g(cid:396)aph does(cid:374)"t dete(cid:272)t lies; it detects anxiety, fear, nervousness, anger, etc. A tool to measure physiological activity (respiration, bp, hr, skin conductivity) A polygraph exam: combination of interrogation + polygraph: responses to specific yes/no or mc questions, the examiner will ask you specific questions that you will answer, and watching your physiological response to those questions. Usage: criminal investigations police use it if they have a suspect or if they think someone is falsifying a crime, security pre-employment screening if you want a job with the. In treatment, they can be polygraphed to see if the(cid:455)"(cid:396)e still de(cid:374)(cid:455)i(cid:374)g i(cid:374)fo(cid:396)(cid:373)atio(cid:374) a(cid:271)out (cid:449)hat a(cid:396)ouses the(cid:373), ho(cid:449) many victims they had, etc.