Corticostriatal Field Potentials Are Modulated at Delta and Theta Frequencies during Interval-Timing Task in Rodents.
Organizing movements in time is a critical and highly conserved feature of mammalian behavior. Temporal control of action requires corticostriatal networks. We investigate these networks in rodents using a two-interval timing task while recording LFPs in medial frontal cortex (MFC) or dorsomedial striatum. Consistent with prior work, we found cue-triggered delta (1-4 Hz) and theta activity (4-8 Hz) primarily in rodent MFC. We observed delta activity across temporal intervals in MFC and dorsomedial striatum. Rewarded responses were associated with increased delta activity in MFC. Activity in theta bands in MFC and delta bands in the striatum was linked with the timing of responses. These data suggest both delta and theta activity in frontostriatal networks are modulated during interval timing and that activity in these bands may be involved in the temporal control of action.
Department of Neurology, Carver College of Medicine, The University of Iowa Iowa City, IA, USA.
Eric B
EB
Emmons
Department of Neurology, Carver College of Medicine, The University of IowaIowa City, IA, USA; Department of Neuroscience and Behavioral Sciences, University of São PauloSão Paulo, Brazil.
Rafael N
RN
Ruggiero
Department of Neurology, Carver College of Medicine, The University of Iowa Iowa City, IA, USA.
Ryan M
RM
Kelley
Department of Neurology, Carver College of Medicine, The University of Iowa Iowa City, IA, USA.
Krystal L
KL
Parker
Department of Neurology, Carver College of Medicine, The University of IowaIowa City, IA, USA; Aging Mind and Brain Initiative, Carver College of Medicine, The University of IowaIowa City, IA, USA.
Nandakumar S
NS
Narayanan
Parkinson’s disease; dorsomedial striatum; interval timing; local field potential; medial frontal cortex; prefrontal cortex; striatum; temporal control