Cartoon Model of Co-Tuning (Top) and Differential Tuning (Bottom) of Excitation and Inhibition (image) Max Planck Florida Institute for Neuroscience Share Print E-Mail Caption Subthreshold direction selectivity is inherited from synaptic conductances when co-tuned. Differential tuning of excitation (Ge) and inhibition (Gi) can preferentially suppress excitation and enhance subthreshold selectivity. With differential tuning, inhibition can be either bidirectional or oppositely tunned for direction relative to excitation. Credit Max Planck Florida Institute for Neuroscience Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.