Journal
NEURON
Volume 94, Issue 4, Pages 920-+Publisher
CELL PRESS
DOI: 10.1016/j.neuron.2017.04.033
Keywords
-
Categories
Funding
- Intramural Research Program at the National Institutes of Health
- National Eye Institute
- [IBS-R015-D1]
Ask authors/readers for more resources
The striatum controls behavior in two ways: facilitation and suppression through the direct and indirect pathways, respectively. However, it is still unclear what information is processed in these pathways. To address this question, we studied two pathways originating from the primate caudate tail (CDt). We found that the CDt innervated the caudal-dorsal-lateral part of the substantia nigra pars reticulata (cdlSNr), directly or indirectly through the caudal-ventral part of the globus pallidus externus (cvGPe). Notably, cvGPe neurons receiving inputs from the CDt were mostly visual neurons that encoded stable reward values of visual objects based on long-past experiences. Their dominant response was inhibition by valueless objects, which generated disinhibition of cdlSNr neurons and inhibition of superior colliculus neurons. Our data suggest that low-value signals are sent by the CDt-indirect pathway to suppress saccades to valueless objects, whereas high-value signals are sent by the CDt-direct pathway to facilitate saccades to valuable objects.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available