Fig. 1

Neuronal recordings, orientation selectivity and crosscorrelation. a Visual stimulations, oriented gratings are presented randomly; one non-preferred grating is used for stimulus-exposure as adaptation (duration: 12 min). Visual responses are measured using intrinsic optical imaging and electrophysiological recordings. b Examples of orientation maps pre- and post-adaptation. c Model of plasticity of orientation maps and tuning curves shifts of one neuron (simulated data). d Raw (gray) and corrected (red) crosscorrelograms showing a mono-projection from neuron “a” to neuron “b”