Lecture Collection | Human Behavioral Biology

(June 2, 2010) Professor Robert Sapolsky gives the final lecture in the Human Biology 160 class. He uses the lecture to wrap up any loose ends and show how the themes of the class connects without the more complex concepts that were brought up throughout the course. Stanford University: http://www.stanford.edu/ Stanford Department of Biology: http://biology.stanford.edu/ Stanford University Channel on YouTube: http://www.youtube.com/stanford

(May 26, 2010) Professor Robert Sapolsky finishes his lecture on language and then dives into his discussion about schizophrenia. He discusses environmental factors as well as genetic characteristics that could apply to people who are affected. He describes schizophrenia as a disease of thought disorder and inappropriate emotional attributes. Stanford University: http://www.stanford.edu/ Stanford Department of Biology: http://biology.stanford.edu/ Stanford University Channel on YouTube: http://www.youtube.com/stanford

(May 21, 2010) Professor Robert Sapolsky gives a lecture on language. He describes the similarities and differences between different human and animal languages. He focuses on how we use language to communicate with each other, how we communicate with animals, and how animals commute with each other. Stanford University: http://www.stanford.edu/ Stanford Department of Biology: http://biology.stanford.edu/ Stanford University Channel on YouTube: http://www.youtube.com/stanford

(May 21, 2010) Professor Robert Sapolsky gives a lecture on emergence and complexity. He details how a small difference at one place in nature can have a huge effect on a system as time goes on. He calls this idea fractal magnification and applies it to many different systems that exist throughout nature. Stanford University: http://www.stanford.edu/ Stanford Department of Biology: http://biology.stanford.edu/ Stanford University Channel on YouTube: http://www.youtube.com/stanford

(May 19, 2010) Professor Robert Sapolsky gives what he calls "one of the most difficult lectures of the course" about chaos and reductionism. He references a book that he assigned to his students. This lecture focuses on reduction science and breaking things down to their component parts in order to understand them best. Stanford University: http://www.stanford.edu/ Stanford Department of Biology: http://biology.stanford.edu/ Stanford University Channel on YouTube: http://www.youtube.com/stanford

(May 17, 2010) Professor Robert Sapolsky completes his fourth and final part of a discussion about aggression and violence. He discusses how hormones and evolution have shaped this behavior into the way humans interact today. Stanford University: http://www.stanford.edu/ Stanford Department of Biology: http://biology.stanford.edu/ Stanford University Channel on YouTube: http://www.youtube.com/stanford

(May 14, 2010) Robert Sapolsky continues his neurobiological exploration of human aggression. He discusses correlations between neurotransmitter prevalence and aggression levels, aggressive activity differences from genetic variance, societal factors and application, amplification from alcohol, and crime and punishment. Stanford University: http://www.stanford.edu/ Stanford Department of Biology: http://biology.stanford.edu/ Stanford University Channel on YouTube: http://www.youtube.com/stanford

(June 2, 2010) Professor Robert Sapolsky gives the final lecture in the Human Biology 160 class. He uses the lecture to wrap up any loose ends and show how the themes of the class connects without the more complex concepts that were brought up throughout the course. Stanford University: http://www.stanford.edu/ Stanford Department of Biology: http://biology.stanford.edu/ Stanford University Channel on YouTube: http://www.youtube.com/stanford

(May 12, 2010) Robert Sapolsky continues his lectures about aggression in humans but also continues to talk about other emotions and what goes on in the brain to cause these various emotions. Stanford University: http://www.stanford.edu/ Stanford Department of Biology: http://biology.stanford.edu/ Stanford University Channel on YouTube: http://www.youtube.com/stanford

(May 10, 2010) Robert Sapolsky completes his talk on sexual behavior in humans as well as other species, focusing on characteristics that create attractiveness. He then switches subject and talks about human aggression and how this has evolved and developed in different cultures. Stanford University: http://www.stanford.edu/ Stanford Department of Biology: http://biology.stanford.edu/ Stanford University Channel on YouTube: http://www.youtube.com/stanford

(March 29, 2010) Stanford professor Robert Sapolsky gave the opening lecture of the course entitled Human Behavioral Biology and explains the basic premise of the course and how he aims to avoid categorical thinking. Stanford University http://www.stanford.edu Stanford Department of Biology http://biology.stanford.edu/ Stanford University Channel on YouTube http://www.youtube.com/stanford

(March 31, 2010) Stanford professor Robert Sapolsky lectures on the biology of behavioral evolution and thoroughly discusses examples such as The Prisoner's Dilemma. Stanford University http://www.stanford.edu Stanford Department of Biology http://biology.stanford.edu/ Stanford University Channel on YouTube http://www.youtube.com/stanford

(April 2, 2010) Robert Sapolsky continues his two-part series on evolution focusing on individual and kin selection, behavioral logic, competitive infanticide, male/female animal hierarchies, sex-ratio fluctuation, intersexual competition, imprinted genes, sperm competition, inbred-founder populations, group and multi-level selection, and punctuated equilibrium. Stanford University http://www.stanford.edu Stanford Department of Biology http://biology.stanford.edu/ Stanford University Channel on YouTube http://www.youtube.com/stanford

(April 5, 2010) Robert Sapolsky makes interdisciplinary connections between behavioral biology and molecular genetic influences. He relates protein synthesis and point mutations to microevolutionary change, and discusses conflicting theories of gradualism and punctuated equilibrium and the influence of epigenetics on development theories. Stanford University http://www.stanford.edu Stanford Department of Biology http://biology.stanford.edu/ Stanford University Channel on YouTube http://www.youtube.com/stanford

(April 12, 2010) Robert Sapolsky introduces a two-part series exploring the controversial scientific practice of inferring behavior to genetics. He covers classical techniques in behavior genetics and flaws, the significance of environmental factors, non genetic inheritance of traits, and multigenerational effects and relationship to epigenetic differences. Stanford University http://www.stanford.edu Stanford Department of Biology http://biology.stanford.edu/ Stanford University Channel on YouTube http://www.youtube.com/stanford

(April 14, 2010) Robert Sapolsky continues his series addressing the link between behavior and genetics. He covers the complex endeavor of gene isolation and variability and heritability and wrongly eliminated environmental influences in heritability tests -- finding that genes and environment are infinitely interconnected and co-dependent on each other. Stanford University http://www.stanford.edu Stanford Department of Biology http://biology.stanford.edu/ Stanford University Channel on YouTube http://www.youtube.com/stanford

(April 16, 2010) Robert Sapolsky discusses various methods of innate recognition of relatives between animals and humans through protein signatures, olfactory cellular mechanisms, cognitive, and sensory processes. He explores the importance of relatedness in animal mating/ovulation cycles and other phenomena that show how organisms identify each other. Stanford University http://www.stanford.edu Stanford Department of Biology http://biology.stanford.edu/ Stanford University Channel on YouTube http://www.youtube.com/stanford

(May 7, 2010) Robert Sapolsky delivers the second part of his two-part lecture on sexual behavior. He discusses how this behavior has evolved into the intricate and complex system that exists today. Stanford University: http://www.stanford.edu/ Stanford Department of Biology: http://biology.stanford.edu/ Stanford University Channel on YouTube: http://www.youtube.com/stanford

May 5, 2010) Robert Sapolsky explores behavioral patterns of human reproduction. He focuses on proximal and distal motivations, orgasm and fertility facilitation, non-reproductive sex, hormonal and cerebral sexual functions, and the differences and similarities between humans and animals in various physiological realms. Stanford University: http://www.stanford.edu/ Stanford Department of Biology: http://biology.stanford.edu/ Stanford University Channel on YouTube: http://www.youtube.com/stanford

(April 28, 2010) Robert Sapolsky continues the exploration of endocrinology and neurology. He looks at more complicated systems of communication within neurobiology, the limbic system's role in personality and behavior, abnormal behavior possibilities within these systems, and individual organism variation and imprinting. Stanford University http://www.stanford.edu/ Stanford Department of Biology http://biology.stanford.edu/ Stanford University Channel on YouTube http://www.youtube.com/stanford