AFNI: software for analysis and visualization of functional magnetic resonance neuroimages
Computers and Biomedical Research
Conceptual Representations of Action in the Lateral Temporal Cortex
Journal of Cognitive Neuroscience
Investigating the Neural Basis of the Auditory Continuity Illusion
Journal of Cognitive Neuroscience
Listening to Action-related Sentences Activates Fronto-parietal Motor Circuits
Journal of Cognitive Neuroscience
Neural Circuits Involved in the Recognition of Actions Performed by Nonconspecifics: An fMRI Study
Journal of Cognitive Neuroscience
Neural Substrates of Action Event Knowledge
Journal of Cognitive Neuroscience
Neural Specialization for Letter Recognition
Journal of Cognitive Neuroscience
Functional Anatomical Correlates of Controlled and Automatic Processing
Journal of Cognitive Neuroscience
Domain-Specific Knowledge Systems in the Brain: The Animate-Inanimate Distinction
Journal of Cognitive Neuroscience
Lefties Get It “Right” When Hearing Tool Sounds
Journal of Cognitive Neuroscience
Face-specific processing in the human fusiform gyrus
Journal of Cognitive Neuroscience
Common blood flow changes across visual tasks: Ii. decreases in cerebral cortex
Journal of Cognitive Neuroscience
Seeing sounds and hearing sights: The influence of prior learning on current perception
Journal of Cognitive Neuroscience
Categorization of environmental sounds
Biological Cybernetics
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In contrast to visual object processing, relatively little is known about how the human brain processes everyday real-world sounds, transforming highly complex acoustic signals into representations of meaningful events or auditory objects. We recently reported a fourfold cortical dissociation for representing action (nonvocalization) sounds correctly categorized as having been produced by human, animal, mechanical, or environmental sources. However, it was unclear how consistent those network representations were across individuals, given potential differences between each participant's degree of familiarity with the studied sounds. Moreover, it was unclear what, if any, auditory perceptual attributes might further distinguish the four conceptual sound-source categories, potentially revealing what might drive the cortical network organization for representing acoustic knowledge. Here, we used functional magnetic resonance imaging to test participants before and after extensive listening experience with action sounds, and tested for cortices that might be sensitive to each of three different high-level perceptual attributes relating to how a listener associates or interacts with the sound source. These included the sound's perceived concreteness, effectuality (ability to be affected by the listener), and spatial scale. Despite some variation of networks for environmental sounds, our results verified the stability of a fourfold dissociation of category-specific networks for real-world action sounds both before and after familiarity training. Additionally, we identified cortical regions parametrically modulated by each of the three high-level perceptual sound attributes. We propose that these attributes contribute to the network-level encoding of category-specific acoustic knowledge representations.