[Comp-neuro] Frontiers Research Topic: "Feedforward and Feedback Processes in Vision"

[Hulusi Kafaligonul]

Dear Colleagues,
We have recently initiated a Frontiers Research Topic "Feedforward and 
Feedback Processes in Vision".  The abstract submission deadline is Jan. 
30, 2014. Please let us know if you are interested in submitting a 
manuscript or if you have any further questions.
Best,
Hulusi Kafaligonul

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*Feedforward and Feedback Processes in Vision*
(http://www.frontiersin.org/Journal/SpecialTopicDetail.aspx?name=perception_science&st=2406&sname=Feedforward_and_Feedback_Proce)

*Topic Editors:*
Hulusi Kafaligonul, Bilkent University, Ankara, Turkey
Bruno G. Breitmeyer, University of Houston, Houston, USA
Haluk Ög(men, University of Houston, Houston, USA

Deadline for abstract submission:  January 30, 2014
Deadline for full article submission:  May 30, 2014

*Abstract:*
The visual system consists of hierarchically organized distinct 
anatomical areas functionally specialized for processing different 
aspects of a visual object (Felleman & Van Essen, 1991). These visual 
areas are interconnected through ascending feedforward projections, 
descending feedback projections, and projections from neural structures 
at the same hierarchical level (Lamme et al., 1998).  Accumulating 
evidence from anatomical, functional and theoretical studies suggests 
that these three projections play fundamentally different roles in 
perception.  However, their distinct functional roles in visual 
processing are still subject to debate (Lamme & Roelfsema, 2000).
The focus of this Research Topic is the roles of feedforward and 
feedback projections in vision. Even though the notions of feedforward, 
feedback, and reentrant processing are widely accepted, it has been 
found difficult to distinguish their individual roles on the basis of a 
single criterion.  We welcome empirical contributions, theoretical 
contributions and reviews that fit into any one (or a combination) of 
the following domains: 1) their functional roles for perception of 
specific features of a visual object 2) their contributions to the 
distinct modes of visual processing (e.g., pre-attentive vs. attentive, 
conscious vs. unconscious) 3) recent techniques/methodologies to 
identify distinct functional roles of feedforward and feedback 
projections and corresponding neural signatures. We believe that the 
current Research Topic will not only provide recent information about 
feedforward/feedback processes in vision but also contribute to the 
understanding fundamental principles of cortical processing in general.

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