The Gates of Paradise

Title bordered by stemshttps://scholarsjunction.msstate.edu/cht-sheet-music/11434/thumbnail.jp

High Yellow Cake Walk and Two-Step / music by F. Heri Klickmann; words by F. Henri Klickmann

Cover: drawing of a well-dressed African American couple dancing; Publisher: Frank K. Root and Co. (Chicago)https://egrove.olemiss.edu/sharris_c/1082/thumbnail.jp

At the Shim-Me-Sha-Wabblers\u27 Ball / music by Geo A. Lewis; words by Geo A. Lewis

Cover: drawing of African Americans dancing at a ball; Publisher: Frank K. Root and Co. (Chicago)https://egrove.olemiss.edu/sharris_c/1136/thumbnail.jp

(Some One Waits, and that is Why) I Love the Name of Dixie / music by E. Clinton Keithley; words by Jack Frost

Cover: African Americans picking cotton; Publisher: Frank K. Root and Co. (Chicago)https://egrove.olemiss.edu/sharris_c/1084/thumbnail.jp

Money / music by Wm. F. Braun; words by Walter Stephens

Cover: drawing of an African American male with outfolded pockets saying Wish I Had a Dime; Publisher: Frank K. Root and Co. (New York)https://egrove.olemiss.edu/sharris_b/1078/thumbnail.jp

You Can Have It, I Don\u27t Want It / music by Clarence Williams and Armand J. Piron ; words by May Hill

Cover: drawing of an African American male playing banjo and singing, while a rooster stares down at him; photo inset of Miss Lillian Teece; Publisher: Frank K. Root and Co. (Chicago)https://egrove.olemiss.edu/sharris_c/1123/thumbnail.jp

The Physics of the B Factories

This work is on the Physics of the B Factories. Part A of this book contains a brief description of the SLAC and KEK B Factories as well as their detectors, BaBar and Belle, and data taking related issues. Part B discusses tools and methods used by the experiments in order to obtain results. The results themselves can be found in Part C

Brief Optogenetic Inhibition of Dopamine Neurons Mimics Endogenous Negative Reward Prediction Errors

Correlative studies have strongly linked phasic changes in dopamine activity with reward prediction error signaling. But causal evidence that these brief changes in firing actually serve as error signals to drive associative learning is more tenuous. While there is direct evidence that brief increases can substitute for positive prediction errors, there is no comparable evidence that similarly brief pauses can substitute for negative prediction errors. Lacking such evidence, the effect of increases in firing could reflect novelty or salience, variables also correlated with dopamine activity. Here we provide such evidence, showing in a modified Pavlovian over-expectation task that brief pauses in the firing of dopamine neurons in rat ventral tegmental area at the time of reward are sufficient to mimic the effects of endogenous negative prediction errors. These results support the proposal that brief changes in the firing of dopamine neurons serve as full-fledged bidirectional prediction error signals