Spatial location cues alone can segregate identical sounds into separate perceived sources
Evidence
It is important to briefly comment on the contribution of the dorsal (“spatial”) pathway to auditory perception (Rauschecker 2012 ; Cloutman 2013 ). Spatial information can act as a grouping cue to assist the segregation of an acoustic stimulus into discrete sounds. For example, when a rhythmic sequence of identical sound bursts is presented from a single location, it is often perceived as one source. But, when the sound sequence is presented from two different locations, it can be perceived as two sounds (Middlebrooks and Onsan 2012 ; Middlebrooks and Bremen 2013 ). Such findings suggest that a mixture of spatial and non-spatial auditory cues from both the dorsal and ventral pathways may be needed in order to create a coherent auditory-perceptual representation that guides behavior. — Dijk, Pim van, Physiology, Psychoacoustics and…, 4883
Categorization
- XREF: Spatial source segregation parallels visual grouping by location and ties into dorsal-ventral ‘where vs what’ pathway debates from neuroscience of vision. — connects to: Listeners segregate mixed sounds into separate sources using many cues; Contralateral efferent-mediated processing can spatially segregate concurrent speech sources by ear; Perceptual segregation of target sounds may arise from temporal coherence with cortical oscillations — Dijk, Pim van, Physiology, Psychoacoustics and…, 4768 (+2 more)
- corroborated: 2 independent passages support this claim — Dijk, Pim van, Physiology, Psychoacoustics and…, 4883