Neural decision correlates appear only in frontal cortex, not auditory cortex
Evidence
In summary, we propose a model in which auditory information is hierarchically organized and processed in the ventral pathway. In early parts of the auditory cortex, neural activity encodes the acoustic features of an auditory stimulus and become increasingly sensitive to complex spectrotemporal properties (Rauschecker and Tian 2000 ). In later regions of the auditory cortex, this information informs perceptual judgments. However, neural activity that reflects a listener’s perceptual judgments does not become apparent until the frontal lobe. — Dijk, Pim van, Physiology, Psychoacoustics and…, 4892
Categorization
Category: Causal Relationships
- XREF: This hierarchical processing model along the ventral auditory pathway parallels the known anatomy of the ventral visual stream (what/where distinction), which could be a useful cross-sensory comparison.
Related
- Auditory ventral-pathway processing is hierarchical, with decisions arising only in frontal cortex. (similarity 0.93)
- How feedforward and feedback signals shape auditory perception remains unknown (similarity 0.85)
- Auditory neurons become increasingly selective for complex sounds along the ventral pathway (similarity 0.85)
- Auditory perceptual decisions are encoded diffusely across frontal and parietal cortex. (similarity 0.85)
- Neurons along the auditory core-belt pathway respond to progressively more complex sound features. (similarity 0.83)
- Neural correlates of perceptual judgments emerge only in the frontal lobe (similarity 0.83)
- Key open questions concern feedback contributions and dorsal-ventral pathway integration (similarity 0.83)
- Coherent auditory perception requires both dorsal spatial and ventral identity processing (similarity 0.82)
- Choice-related cortical activity may only reflect top-down feedback rather than causal involvement (similarity 0.81)
- Contralateral ear dominance weakens higher in the auditory pathway (similarity 0.81)
- Auditory pathway neural activity linearly encodes perceived loudness, not sound level (similarity 0.81)
- AL belt neurons encode auditory evidence that drives perceptual decisions (similarity 0.80)
- Task-engaged neural recordings clarify how the ventral pathway serves perception (similarity 0.79)
- Auditory categorization is hierarchically organized along the ventral pathway (similarity 0.79)
- Higher-frequency auditory filters carry more intensity-difference information than the signal-centered filter (similarity 0.79)