@article{2418, keywords = {Animals, Male, Rats, Conditioning, Operant, Evoked Potentials, Visual, Functional Neuroimaging, Head, Immobilization, Molecular Imaging, Visual Cortex}, author = {Benjamin Scott and Carlos Brody and David Tank}, title = {Cellular resolution functional imaging in behaving rats using voluntary head restraint.}, abstract = {
High-throughput operant conditioning systems for rodents provide efficient training on sophisticated behavioral tasks. Combining these systems with technologies for cellular resolution functional imaging would provide a powerful approach to study neural dynamics during behavior. Here we describe an integrated two-photon microscope and behavioral apparatus that allows cellular resolution functional imaging of cortical regions during epochs of voluntary head restraint. Rats were trained to initiate periods of restraint up to 8 s in duration, which provided the mechanical stability necessary for in vivo imaging while allowing free movement between behavioral trials. A mechanical registration system repositioned the head to within a few microns, allowing the same neuronal populations to be imaged on each trial. In proof-of-principle experiments, calcium-dependent fluorescence transients were recorded from GCaMP-labeled cortical neurons. In contrast to previous methods for head restraint, this system can be incorporated into high-throughput operant conditioning systems.
}, year = {2013}, journal = {Neuron}, volume = {80}, pages = {371-84}, month = {2013 Oct 16}, issn = {1097-4199}, doi = {10.1016/j.neuron.2013.08.002}, language = {eng}, }