Simple cell definitions

Simple cell

1) Visual system
Found on https://www.crosswordclues.com/clue/simple-cell

---

Simple cell

A simple cell in the primary visual cortex is a cell that responds primarily to oriented edges and gratings (bars of particular orientations). These cells were discovered by Torsten Wiesel and David Hubel in the late 1950s. Hubel and Wiesel named these cells `simple,` as opposed to `complex cell`, because they shared the following properties: ...
Found on http://en.wikipedia.org/wiki/Simple_cell

---