Single-neuron spike train recordings from macaque prefrontal cortex during a visual working memory task before and after training.

This dataset contains the recordings from prefrontal cortex of four monkeys. It encompasses two
tasks (spatial task and feature task) and both pre-training and post-training recordings.
This dataset is published together with the following manuscript that performs dimensionality
reduction of several PFC datasets:
* Kobak, D., Brendel, W., Constantinidis, C., Feierstein, C. E., Kepecs, A., Mainen, Z. F.,
Romo, R., Qi, X.-L., Uchida, N., and Machens, C. K. (2016). Demixed principal component analysis
of neural population data. eLife, in press.
Original publications associated with the data are:
* Meyer, T., Qi, X. L., Stanford, T. R., and Constantinidis, C. (2011). Stimulus selectivity in
dorsal and ventral prefrontal cortex after training in working memory tasks.
The Journal of Neuroscience, 31(17), 6266-6276.
Qi, X. L., Meyer, T., Stanford, T. R., and Constantinidis, C. (2011). Changes in Prefrontal Neuronal
Activity after Learning to Perform a Spatial Working Memory Task. Cerebral cortex, 21(12), 2722-2732.