New TICS Review out!

Neurons are noisy. Even when we view successive presentations of the same stimulus, the responses of a given neuron will vary. Moreover, this noise is correlated between neurons. Because correlated variability cannot be removed by averaging over the population, it can distort population responses to different stimuli, reducing the certainty of what stimulus occurred at any given moment. Researchers typically discard this variability by averaging the responses of neurons to many stimulus presentations. Trial averaging is part of the methodological backbone of attention experiments in both monkey electrophysiology and human neuroimaging. However, our brains do not have this luxury. From one moment to the next, we make sense of our environments in real time. How then does the brain compensate for neuronal variability? For more information, follow the link here