eLife Assessment
This is an important paper that reports in vivo physiological abnormalities in the hippocampus of a rat model of traumatic brain injury (TBI). In this study, authors focused on changes in theta-gamma phase coupling and action potential entrainment to theta, phenomena hypothesized to be critical for cognition. The authors provide convincing evidence of deficits in both features post-TBI and contributes new understanding to how disruptions in oscillatory coordination and spike timing may relate to cognitive impairment.