IMAGE OF THE MONTH

September 2003

Dorsal view of the brain stem of a chicken embryo which has been labeled with a voltage sensitive dye to reveal electrical activity in neural circuits. Membrane potential is color coded, with depolarization increasing towards the red. A specific branch of the left vestibular nerve has been stimulated, leading to activity in specific subpopulations of vestibular neurons (lower left), which have then activated synaptically specific populations of motoneurons in the oculomotor and trochlear motor nuclei (upper middle region). From studies performed by Joel Glover in collaboration with Yoko Momose-Sato and Katsushige Sato at the Tokyo Medical and Dental University.