Simulated field potentials capture multiple simultaneous processes underlying human temporal attention
Essential cognitive processes like attention, memory, and decision-making require the brain to perform many operations simultaneously. Disentangling the neural mechanisms underlying these processes is challenging because they often unfold concurrently with similar dynamics. In auditory temporal expectation, these mechanisms include the accumulation of incoming sensory information in the auditory…
Human neural mechanisms underpinning essential cognitive processes, such as attention, memory, and decision-making, often occur simultaneously. These processes are challenging to separate due to their concurrent and similar dynamics, particularly in auditory temporal expectation. Researchers have now developed a method to simulate each trial's predicted field potential by combining known field potential physiology with components of cognitive theories related to the task, such as sensory input, top-down bias, and sensory anticipation.
The simulated field potentials closely matched neural activity in auditory regions, as well as regions associated with auditory temporal perception, which include the parietal, temporal, and prefrontal cortices. By differentiating individual cognitive mechanisms through simulation, the researchers identified neural signatures of attentional bias and anticipatory sensory activity in multiple cortical regions. These neural signatures accurately predicted trial-by-trial perceptual accuracy and confidence.
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