NEURO tv is a monthly online conversation between neuroscientists, psychologists and philosophers who try to understand the brain and the mind.

Jep, and this is great! Jean-Francois Gariépy uploaded already 11 episodes of his Neuro.TV series, each of  them roughly an hour long. He organizes online video meetings with researchers discussing latest opinions and research directions in neurosience.

Scaling Brain Size, Keeping Timing: Evolutionary Preservation of Brain Rhythms by György Buzsáki, Nikos Logothetis and Wolf Singer

In this paper, they report changes of frequency of several rhythms as a function of brain weight. What I found interesting was Fig. 2 showing that most rhythms are invariant to brain weight (or equally size) except theta, suggesting that spatial properties of the hippocampus (e.g. its overall size) indeed constrain the range in which theta rhythm emerges.