(1811) Cytokine changes in the horizontal diagonal band of Broca in the septum after running and stroke: a correlation to glial activation.   Ang ET, Wong PT, Moochhala S and Ng YK.   2004.   Neuroscience, volume 129, pages 337-347.

(1812) Role of cerebellar interpositus nucleus in the genesis and control of reflex and conditioned eyelid responses.   Jiminez-Diaz L, de Dios Navarro-Lopez J, Gruart A and Delgado-Garcia JM.   2004.   Journal of Neuroscience, volume 24, pages 9138-9145.

(1813) Social transmission of face preferences among humans.   Jones BC, Debruine LM, Little AC, Burriss RP and Feinberg DR.   2007.   Proceedings. Biological Sciences / The Royal Society, volume 274, pages 899-903.   Perhaps the men had homosexual preferences. The crucial control was men looking at men looking pictures of women, with variation of how the men looked at the pictures of women.

(1814) Upstream reciprocity and the evolution of gratitude.   Nowak MA and Roch S.   2007.   Proceedings. Biological Sciences / The Royal Society, volume 274, pages 605-609.

(1815) Tag-based indirect reciprocity by incomplete social information.   Masuda N and Ohtsuki H.   2007.   Proceedings. Biological Sciences / The Royal Society, volume 274, pages 689-695.

(1816) Detecting kin selection at work using inclusive fitness.   Grafen A.   2007.   Proceedings. Biological Sciences / The Royal Society, volume 274, pages 713-719.   An index of validity is required to resolve these contradictory findings.

(1817) Partner choice creates competitive altruism in humans.   Barclay P and Willer R.   2007.   Proceedings. Biological Sciences / The Royal Society, volume 274, pages 749-753.

(1818) A quantitative, theoretical framework for understanding mammalian sleep.   Savage VM and West GB.   2007.   Proceedings of the National Academy of Sciences of the United States of America, volume 104, pages 1051-1056.

(1819) Decoding the neural substrates of reward-related decision making with functional MRI.   Hampton AN and O'Doherty JP.   2007.   Proceedings of the National Academy of Sciences of the United States of America, volume 104, pages 1377-1382.

(1820) Patients with hippocampal amnesia cannot imagine new experiences.   Hassabis D, Kumaran D, Vann SD and Maguire EA.   2007.   Proceedings of the National Academy of Sciences of the United States of America, volume 104, pages 1726-1731.