Topic: recurrent cortical networks

In order to investigate the involvement of primary visual cortex (V1) in working memory (WM), parallel, multisite recordings of multiunit activity were obtained from monkey V1 while the animals performed a delayed match-to-sample (DMS) task. During the delay period, V1 population firing rate vectors maintained a lingering trace of the sample stimulus that could be reactivated by intervening impulse stimuli that enhanced neuronal firing. This fading trace of the sample did not require active engagement of the monkeys in the DMS task and was also observed in a WM-independent passive viewing task

The prefrontal cortex (PFC) exhibits prominent oscillatory activity already during early development. In the mouse PFC, these oscillations develop a beta band [15-30 Hz] component during the second postnatal week. These fast oscillations increase in frequency and amplitude with age until stabilizing in the adult-characteristic gamma band [30-80 Hz] during the fourth postnatal week. Abnormal development of fast prefrontal oscillations has been reported for mouse models of schizophrenia and autism. Here, we investigate potential drivers of PFC peak frequency acceleration through simulations of r