Receptive Field Properties of Koniocellular On/Off Neurons in the Lateral Geniculate Nucleus of Marmoset Monkeys
Calvin D Eiber, Abrar S Rahman, Alexander NJ Pietersen, Natalie Zeater, Bogdan Dreher, Samuel G Solomon, Paul R Martin
The Journal of Neuroscience | SOC NEUROSCIENCE | Published : 2018
The koniocellular (K) layers of the primate dorsal lateral geniculate nucleus house a variety of visual receptive field types, not all of which have been fully characterized. Here we made single-cell recordings targeted to the K layers of diurnal New World monkeys (marmosets). A subset of recorded cells was excited by both increments and decrements of light intensity (on/off-cells). Histological reconstruction of the location of these cells confirmed that they are segregated to K layers; we therefore refer to these cells as K-on/off cells. The K-on/off cells show high contrast sensitivity, strong bandpass spatial frequency tuning, and their response magnitude is strongly reduced by stimuli l..View full abstract
Awarded by National Health and Medical Research Council
Awarded by Australian Research Council Centre of Excellence for Integrative Brain Function (ARC Centre Grant)
This work was supported by a National Health and Medical Research Council Project Grant (1042609) and the Australian Research Council Centre of Excellence for Integrative Brain Function (ARC Centre Grant CE140100007). We thank K. Cheong and A. Camp for help with data acquisition, and A. Demir and R. Masri for technical assistance.