Daydreaming may actually help us learn and remember better
A serendipitous discovery a couple of decades ago put the spotlight on areas of the brain virtually silent when engaged in a task and most active when a person is not really doing anything. Studies of this 'Default Mode Network' (DMN) have increased exponentially, yet its role in information processing is still unclear. Interestingly, during sleep or resting wakefulness, an area of the brain fundamental to learning and memory demonstrates something similar, replaying earlier experiences by re-engaging the same sequential cell activations. REPLAY_DMN is investigating whether DMN and memory replay are interrelated. Experiments imaging brain activity from the network scale down to the single-neuron level in alert behaving mice will inform a computational model of memory formation and consolidation.
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