Key open questions concern feedback contributions and dorsal-ventral pathway integration

Evidence

First, as alluded to above, understanding how feedforward versus feedback information contributes to neural correlates of perceptual judgments remains an open question. Second, the degree to which different types of auditory judgements differentially engage different components of the ventral pathway has yet to be fully articulated. A third question is to identify how the different computational processes (e.g., perceptual grouping, attention, decision-making, and categorization) that underlie auditory perception interact with one another. For example, it remains an open issue as to whether and how attention differentially modulates neural correlates of auditory perception at different hierarchical levels of the ventral auditory pathway (e.g., A1 versus AL) … Finally, it is important to identify the manner by which the dorsal and ventral auditory pathways interact in order to form a consistent and coherent representation of the auditory scene. — Dijk, Pim van, Physiology, Psychoacoustics and…, 4878

Categorization

• QUESTION: Feedforward vs feedback separation is the fundamental open methodological problem in choice-activity research.