PSYC 455 Lecture Notes - Lecture 7: Resting Potential, Potassium Channel, Lithium Chloride

• School: Concordia University
• Department: Psychology
• Course: PSYC 455
• Professor: Wayne Brake

Document Summary

Lecture 7 neuroscience review: neuroscience review, drugs are a mystery, licl: Treat(cid:373)e(cid:374)t for (cid:271)ipolar disorder (cid:271)ut (cid:449)e do(cid:374)"t k(cid:374)o(cid:449) (cid:373)u(cid:272)h a(cid:271)out its a(cid:272)tio(cid:374)s: estrogen: Estroge(cid:374) e(cid:374)ha(cid:374)(cid:272)e the effe(cid:272)ti(cid:448)e(cid:374)ess of a(cid:374)tips(cid:455)(cid:272)hoti(cid:272)s, (cid:271)ut (cid:449)e do(cid:374)"t k(cid:374)o(cid:449) why or how: the membrane, semi-permeable: Ions with a (cid:272)harge do(cid:374)"t easil(cid:455) pass it because of its fatty nature: A- (other anions): proteins span the membrane: Allow certain ions to enter thanks to: Electrostatic forces (i. e. opposites attract; ion with negative charge will be more likely to diffuse into an environment that is positive and positive ions will want to flow out of a positive environment). Diffusion forces (i. e. ion will diffuse away from an environment with a high concentration of that ion to an area where there is a low concentration): hypothetical membrane example: A membrane with equal positive and negative ions/charge on the inside and outside (i. e. with a net charge of 0mv): If we add a potassium channel on the membrane: