How does the brain combine information from body external sensory stimulation with information on the internal state of the individual such as hunger, fear or stress? The Yaksi lab investigated this question by looking at an equivalent of the habenula in mammals - the dorsal habenula (dHb) in zebrafish. In their recent publication, Suresh Kumar Jetti, Nuria Vendrell Llopis and Emre Yaksi conclude that the habenula acts as a switch board for sensory information, thus regulating behavior in response to external stimuli. Read more at vib.be.
Spontaneous Activity Governs Olfactory Representations in Spatially Organized Habenular Microcircuits
Jetti et al, Current Biology 2014