Modular organization of intrinsic connections associated with spectral tuning in cat auditory cortex.
basic_science · Level V
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- Record sourced from PubMed, PMID 11438747.
- Also identified by PMC identifier 35464.
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Abstract
Many response properties in primary auditory cortex (AI) are segregated spatially and organized topographically as those in primary visual cortex. Intensive study has not revealed an intrinsic, anatomical organizing principle related to an AI functional topography. We used retrograde anatomic tracing and topographic physiologic mapping of acoustic response properties to reveal long-range (> or = 1.5 mm) convergent intrinsic horizontal connections between AI subregions with similar bandwidth and characteristic frequency selectivity. This suggests a modular organization for processing spectral bandwidth in AI.
Medical subject headings
- Auditory Cortex