Corticostriatal Field Potentials Are Modulated at Delta and Theta Frequencies during Interval-Timing Task in Rodents

Author(s)

Emmons, Eric B. ^[1] ; Ruggiero, Rafael N. ^{[1, 2]} ; Kelley, Ryan M. ^[1] ; Parker, Krystal L. ^[1] ; Narayanan, Nandakumar S. ^{[1, 3]}

Affiliation

^[1] Univ Iowa, Dept Neurol, Carver Coll Med, Iowa City, IA 52242 - USA

^[2] Univ Sao Paulo, Dept Neurosci & Behav Sci, Sao Paulo - Brazil

^[3] Univ Iowa, Carver Coll Med, Aging Mind & Brain Initiat, Iowa City, IA - USA

• Document type: Journal article
• Source: FRONTIERS IN PSYCHOLOGY; v. 7, APR 5 2016.
• Web of Science Citations: 10

Abstract

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. (AU)

• FAPESP's process: 14/22817-1 - Modulation of prefrontal cortex activity by optogenetic stimulation of ventral tegmental area during fixed interval task: examining how neuronal firing codes timing
• Grantee: Rafael Naime Ruggiero
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate