Striatum interneurons track learning of attention cues

Our new paper shows how fast spiking interneurons in the striatum activate specifically when attention cues are learned. This is a rare paper where we succeed to isolate fast spiking interneurons in recordings from nonhuman primate anterior striatum while the animals performed a complex feature-based attentional learning task. Phd can. Kia Banaeie Boroujeni spearheaded the advanced analysis pipeline for this sophisticated paper – congratulations for a huge milestone in deciphering the sources of attentional control! The paper can be downloaded here. See also Research-News @ Vanderbilt covering these findings.

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The phase of firing of fronto-striatal neurons encodes learning variables

Our new paper shows that neurons in the striatum, anterior cingulate and prefrontal cortex encode learning variables in the phase of firing. We outline a powerful regression based analysis pipeline that revealed spiking activity of neurons relative to the phase of beta oscillations carries significant learning information during reversal learning. The paper can be downloaded […]

M1-selective allosteric modulation enhances cognitive flexibility

We have new research out at PNAS about enhancing cognitive flexibility with highly selective allosteric modulation of the M1 muscarinic receptor (pdf: here)! Muscarinic receptors are known to mediate pro-cognitive effects of acetylcholine, but it has remained unclear whether they differentially affect the cognitive subfunctions of attentional filtering, set shifting, and learning. To clarify the […]