TY - JOUR
T1 - Purkinje cell microzones mediate distinct kinematics of a single movement
AU - Blot, François G C
AU - White, Joshua J
AU - van Hattem, Amy
AU - Scotti, Licia
AU - Balaji, Vaishnavi
AU - Adolfs, Youri
AU - Pasterkamp, R Jeroen
AU - De Zeeuw, Chris I
AU - Schonewille, Martijn
N1 - © 2023. The Author(s).
PY - 2023/7/19
Y1 - 2023/7/19
N2 - The classification of neuronal subpopulations has significantly advanced, yet its relevance for behavior remains unclear. The highly organized flocculus of the cerebellum, known to fine-tune multi-axial eye movements, is an ideal substrate for the study of potential functions of neuronal subpopulations. Here, we demonstrate that its recently identified subpopulations of 9+ and 9- Purkinje cells exhibit an intermediate Aldolase C expression and electrophysiological profile, providing evidence for a graded continuum of intrinsic properties among PC subpopulations. By identifying and utilizing two Cre-lines that genetically target these floccular domains, we show with high spatial specificity that these subpopulations of Purkinje cells participate in separate micromodules with topographically organized connections. Finally, optogenetic excitation of the respective subpopulations results in movements around the same axis in space, yet with distinct kinematic profiles. These results indicate that Purkinje cell subpopulations integrate in discrete circuits and mediate particular parameters of single movements.
AB - The classification of neuronal subpopulations has significantly advanced, yet its relevance for behavior remains unclear. The highly organized flocculus of the cerebellum, known to fine-tune multi-axial eye movements, is an ideal substrate for the study of potential functions of neuronal subpopulations. Here, we demonstrate that its recently identified subpopulations of 9+ and 9- Purkinje cells exhibit an intermediate Aldolase C expression and electrophysiological profile, providing evidence for a graded continuum of intrinsic properties among PC subpopulations. By identifying and utilizing two Cre-lines that genetically target these floccular domains, we show with high spatial specificity that these subpopulations of Purkinje cells participate in separate micromodules with topographically organized connections. Finally, optogenetic excitation of the respective subpopulations results in movements around the same axis in space, yet with distinct kinematic profiles. These results indicate that Purkinje cell subpopulations integrate in discrete circuits and mediate particular parameters of single movements.
KW - Purkinje Cells/physiology
KW - Biomechanical Phenomena
KW - Eye Movements
KW - Cerebellum/physiology
KW - Movement
U2 - 10.1038/s41467-023-40111-5
DO - 10.1038/s41467-023-40111-5
M3 - Article
C2 - 37468512
SN - 2041-1723
VL - 14
SP - 4358
JO - Nature Communications
JF - Nature Communications
IS - 1
ER -