Affordable Access

Publisher Website

Visual receptive field types in the nucleus dorsalateralis anterior of the pigeon's thalamus

Brain Research
Publication Date
DOI: 10.1016/0006-8993(76)90187-6


Abstract Extracellular recordings were made from cells in the dorsolateral thalamus (DLLv, DLLd, DLAmc) of the pigeon, and their receptive field properties analyzed with stationary and moving visual stimuli. One hundred and ten cells were classified as follows on the basis of their responses. I. On-center and off-center cells (56%). Most of the units in this class had a powerful inhibitory surround which decreased the activity generated at the field center and in some cases gave rise to firing when stimulated alone. II. On-off center cells (16%). These gave on-off responses to static stimulation. More than half of them had an inhibitory surround which suppressed both on and off discharge, or in other cases either the on or the off burst of the center response. This group of cells also responded strongly to motion independently of direction. III. Cells sensitive only to motion (28%). The discharges to movements of units in this class were not affected by the direction of motion. The visual properties of the thalamic units are discussed in conjuction with previous results in the optic tectum of the pigeon.

There are no comments yet on this publication. Be the first to share your thoughts.