Manuel Giannoni Guzman

Manuel Giannoni Guzman

Postdoctoral Fellow, McMahon Lab


Day length (photoperiod) has been shown to impact the presence and prevalence of mood disorders, such as seasonal affective disorder. Previous work from our laboratory has shown that seasonal photoperiods have long-lasting effects on the firing rate of mouse serotonergic neurons of the dorsal raphe and affective behaviors. My current endeavors focus on understanding how changes in key K+ and Ca++ currents in the dorsal raphe neurons contribute to the observed differences in firing rate between photoperiods.