Functional network properties of the auditory cortex

Task-specific invariant representation in auditory cortex

“…Some studies have also reported that choice related activity emerges in non-primary auditory cortex during a challenging perceptual discrimination behavior (Tsunada et al, 2015), although factors affecting choice coding may be task dependent (Bizley et al, 2013). Together, these findings are consistent with the idea that behaviorally relevant neural representations are computed hierarchically in auditory cortex (Lestang et al, 2023).…”

“…Despite the diverse task-dependent changes in sound representations across individual neurons, analysis of sound discriminability at the population level revealed striking qualitative differences between A1 and dPEG. This finding highlights the value of studying auditory coding at the level of neural populations, which provides a more complete assessment of system-wide function than individual neurons (Bagur et al, 2018; Lestang et al, 2023). In our analysis, we defined population coding accuracy as the amount of stimulus information an ideal observer could extract from simultaneously recorded population activity.…”

“…It has been proposed that auditory cortex dynamically computes representations of task-relevant sound features from non-specific spectro-temporal inputs to A1 (Lestang et al, 2023). Prior work has established that task-dependent modulation of auditory responses is larger in non-primary versus primary fields of auditory cortex (Atiani et al, 2014; Kline et al, 2023; Niwa et al, 2013).…”