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Fischer and Reh provide evidence that Müller glia in the retina of postnatal chickens have the potential to re-enter the cell cycle and generate new neurons, which are distributed throughout the inner and outer nuclear layers of the retina. Shown here is a vertical section of the chicken retina that has been double labeled for cellular retinoic acid binding protein (orange) and calretinin (green). See page 247.
Studies of populations of receptor proteins suggest that their number and location are highly regulated. Single-particle tracking of glycine receptors now reveals the direct movement of receptors between different clusters of the anchoring protein gephyrin.
The blood–brain barrier forms a buffer against the systemic circulation. Now drugs administered to the brain are shown to be exported by a transporter to act at peripheral sites.
A modeling study shows that inhibitory synapse plasticity, guided by simple activity-dependent rules, can lead to appropriate phase relationships within an oscillating network.
An electrophysiological study in monkey primary visual cortex reveals that a late component of neural activity is correlated with perceptual awareness of an object.