To summarize, successful memory relies on two cognitive processes. First, a deployment of attention causes generalized decreases in low-frequency power, potentially decreasing neural noise correlations and allowing the brain to represent higher information content [52,74]. These neural dynamics are found in memory and non-memory tasks, because attention is critical to both. Second, memory-related increases in theta power manifests as a peak in the power spectrum and increased inter-regional connectivity. The theta peak is detectable so long as a correction is made for the underlying tilt in the power spectrum.
