:none ECoG Misako Komatsu 0000-0003-4464-4484 Laboratory for Molecular Analysis of Higher Brain Function, RIKEN Center for Brain Science Department of Ultrastructural Research, National Center of Neurology and Psychiatry Connectome Analysis Unit, Integrative Computational Brain Science Collaboration Division, RIKEN Center for Brain Science JPN 2021 2021-01-14 Noritaka Ichinohe 0000-0003-4464-4484 Laboratory for Molecular Analysis of Higher Brain Function, RIKEN Center for Brain Science Department of Ultrastructural Research, National Center of Neurology and Psychiatry 1 MAT en 3.8 GB Creative Commons Attribution 4.0 International (CC BY 4.0) We used auditory stimuli of different durations (AD) and frequencies (AF). In AD, 10 types of pure sinusoidal tones (1 ms rise/fall) with different durations (10, 25, 50, 75, 100, 125, 150, 175, 200, and 225 ms; 1000 Hz; 2000 stimuli in total) were randomly presented with an equal probability of 10%. In AF, 10 types of tones with different frequencies (700, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500, and 1600 Hz; 50 ms; 1000 stimuli in total) were presented with an equal probability of 10%. <br/>Epidural ECoG recordings were taken in the passive listening condition while monkeys were in awake and ketamine (30 mg/kg i.m.) administrated conditions. ECoG data were sampled at 1KHz. <br/>Data format information can be found on [TychoWiki](http://wiki.neurotycho.org/Auditory_Oddball_Details). Japan Agency for Medical Research and Development (AMED) https://doi.org/10.13039/100009619