www.psychexamreview.com In this video I consider racial differences in average IQ scores. This controversy reached a peak with the publication of "The Bell Curve" by Richard Herrnstein and Charles Murray in 1994. This led to publication of several papers on race and IQ stating that IQ is considered valid, reliable, and heritable, and that while group differences exist, the causes of these differences are not clearly understood. While concepts of race, environmental and societal forces, and genes may or may not all contribute to observed differences between groups, it's important to remember that knowing an individual's group membership doesn't tell one anything about that individual's IQ score. The Bell Curve Explained (Charles Murray): http://www.aei.org/spotlight/the-bell-curve-explained/ Don’t forget to subscribe to the channel to see future videos! Have questions or topics you’d like to see covered in a future video? Let me know by commenting or sending me an email! Check out my book, Master Introductory Psychology, an alternative to a traditional textbook: http://amzn.to/2eTqm5s ... https://www.youtube.com/watch?v=g3hPTLn60ak

www.psychexamreview.com In this video I describe how hunger is turned on (the orexigenic signal) and off (the anorexigenic signal) and how hormones and other cues influence motivation to eat. The lateral hypothalamus is involved in turning on hunger, while the ventromedial hypothalamus is involved in signaling satiety. Other hormones such as ghrelin, leptin, and insulin also influence motivation to eat, in addition to other cues like visual stimuli. Like these videos? Consider supporting Psych Exam Review on Patreon: www.patreon.com/PsychExamReview Don’t forget to subscribe to the channel to see future videos! Have questions or topics you’d like to see covered in a future video? Let me know by commenting or sending me an email! Need more explanation? Check out my full psychology guide: Master Introductory Psychology: http://amzn.to/2eTqm5s ... https://www.youtube.com/watch?v=P47xxTYJZn8