Processing along dorsal and ventral streams in the brain
13.10.2011 um 09:00 bis
14.10.2011 um 18:00
|Wo||FRIAS, Albertstr. 19, Conference Room|
|Name||Dr. Gesa von Essen|
Organisation: Cornelius Weiller (University of Freiburg), Michel Rijntjes (University of Freiburg) and Karin Schilling (University of Hamburg-Eppendorf)
Abstract: Cognitive and neuropsychological hypotheses have extended the original concept of “where“ and “what“ pathways in the visual system to other domains, e.g. acoustic processing as well higher cognitive functions as language syntax, suggesting a general principle organization of the brain. Sophisticated tracking methods and modern in-vivo techniques have visualized the anatomical structure in various species, as song birds, primates and humans. Various connecting fibre systems have been delineated, the differential role of which is just about emerging. It is now possible to assess networks underlying cognitive functions rather than just isolated cortical areas (lesion method, traditional functional imaging). Function may be inferred from the connected cortical regions. The anatomical range of egions, which participate in the streams has extended to the frontal lobe and the network includes medial and subcortical structures. The computational procedures within both streams are almost unknown. The conference aims to bring together scientists from diverse areas as anatomy, technology, cognitive neuroscience, neurology, computational neuroscience and humanities.
Contact: Cornelius Weiller firstname.lastname@example.org
DAY 1 (Thursday 13.10), 9.00-17.30
Cornelius Weiller, Michel Rijntjes: Welcome + Introduction
THE DUAL PATHWAY AND THE MODALITIES
Richard Wise: Language
Ferdinand Binkofski: Motor System
Kenneth Heilman: Attention
Matthias Oechslin: Music
Rik Vandenberghe: Memory
Elise Klein: Calculation
FUNCTION AND ANATOMY
Michael Petrides: How many fibre tracts constitute the dorsal and ventral streams? Are these uninterrupted tracts or not?
Lauren Cloutman: To what extent do the dual pathways ‘talk’ to each other, integrating/sharing information across the two systems? How/where does this take place?
Dwight Kravitz: Which regions do they connect and therefore which functions do they subserve?
Do the connecting regions determine the specific functions of each pathway?
Josef Rauschecker: Are there differential computational abilities in both streams?
Matt Lambon Ralph: Are two tract systems enough to explain existing data or is there any anatomical,
lesional, functional or psychological evidence that points to more than two tracts?
DAY 2 (Friday 14.10), 9.00-17.30
OTHER STRUCTURES AND PATIENTS
Larry Edelstein: What is the role of the claustrum in the ventral stream?
Richard Binney: What is the role of the uncinate fasciculus in the context of the dual stream hypothesis, and with regard to language?
Jean-François Démonet: What is special in the dorsal/ventral organization of language functions in the dominant (left) hemisphere and how about the dorsal/ventral systems in the homologous right hemisphere?
Laurel Buxbaum: How has our knowledge of processing in the 2 streams informed our understanding of clinical disorders of action in brain-lesioned patients, and vice versa?
DEVELOPMENT / EVOLUTION / COMPARATIVE ANATOMY
Angela Friederici: Is there a developmental difference in dorsal and ventral pathways?
Dietrich Stout: At what level of evolution can a dual pathway be found? What does this imply for the functional division of processing in two streams?
Nicolas Giret: Are there comparative anatomical or functional findings of dorsal and ventral streams in songbirds?
SEMANTIC REPRESENTATION, INNER SPEECH AND CONSCIOUSNESS
What, if any, is the relation between the ventral/dorsal pathway approach and our understanding of semantic representations, inner speech and consciousness?
SUMMARY, WHAT NEXT?
Cornelius Weiller , Michel Rijntjes