AUTHOR=Petro Lucy S., Vizioli Luca , Muckli Lars 

TITLE=Contributions of cortical feedback to sensory processing in primary visual cortex

JOURNAL=Frontiers in Psychology

VOLUME=Volume 5 - 2014

YEAR=2014

URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2014.01223

DOI=10.3389/fpsyg.2014.01223

ISSN=1664-1078

ABSTRACT=<p>Closing the structure-function divide is more challenging in the brain than in any other organ (<xref ref-type="bibr" rid="B63">Lichtman and Denk, 2011</xref>). For example, in early visual cortex, feedback projections to V1 can be quantified (e.g., <xref ref-type="bibr" rid="B15">Budd, 1998</xref>) but the understanding of feedback function is comparatively rudimentary (<xref ref-type="bibr" rid="B75">Muckli and Petro, 2013</xref>). Focusing on the function of feedback, we discuss how textbook descriptions mask the complexity of V1 responses, and how feedback and local activity reflects not only sensory processing but internal brain states.</p>