Clark School Home UMD

ISR News Story

Auditory researchers publish sensory processing research in PNAS

Former ISR postdoctoral researcher Stephen David*, Professor Shihab Shamma (ECE/ISR), and ISR Associate Research Scientist Jonathan Fritz have published an article in the Dec. 21, 2011 edition of Proceedings of the National Academy of Sciences of the United States of America (PNAS).

“Task reward structure shapes rapid receptive field plasticity in auditory cortex” suggests that top-down control of sensory processing can be shaped by task reward structure in addition to required sensory discrimination.

The effects of attention on sensory processing vary across task paradigms, suggesting that the brain may use multiple strategies and mechanisms to highlight attended stimuli and link them to motor action. Working memory and motor planning signals for eye movements may drive spatial attention effects in the visual cortex.

The study’s findings predict that it should be possible to suppress visual responses with an appropriate approach behavior paradigm. The study also suggests that the form of learning influences how information is actively processed, stored, and recalled in the brain.

Developing a deeper understanding of how learned reward and motor contingencies control sensory processing may lead to more effective approaches to behavioral training and a more complete picture of how sensory information from diverse behavioral contexts is integrated into a unified representation.

* Stephen David is now an assistant professor at Oregon Health & Science University, where he heads the Laboratory of Brain, Hearing, and Behavior in the Oregon Hearing Research Center.

Related Articles:
UMD neuroscience researchers publish in the journal Neuron
Yin, Fritz, Shamma publish neuroplasticity study in Journal of Neuroscience
Researchers publish human auditory system study in PLoS Biology
Shamma, Horiuchi co-PIs on NSF cortical architectures grant
Shihab Shamma named to NIH advisory council
Shamma receives NIH grant to study spectro-temporal plasticity in the brain's neuronal networks
‘Cocktail party effect’ helps us focus in noisy environments
Simon, Ding publish auditory cortex research in PNAS
Alumna Mounya Elhilali wins ONR Young Investigators Award
Shihab Shamma is PI on €3.3M European Research Council Advanced Grant

December 23, 2011


Prev   Next

 

 

Current Headlines

Tsiropoulou to join University of New Mexico faculty

Qu Gives Keynote at WOCC 2017

Wood filter removes toxic dye from water

Prof. Alireza Khaligh to receive Outstanding Young Alumnus Award from Illinois Tech

Simon is co-editor of new Springer auditory research book

New Class Inducted into Order of the Engineer

Northrop Grumman renews as an ISR associate partner for third consecutive year

Students of Khaligh, Wu win China Scholarship Council awards

ECE Graduate Student Team, led by Prof. Khaligh, Wins 3rd place in the Allegheny Region Cleantech University Prize (CUP) Collegiate Competition 

Paley, Abshire, Martins promoted to full Professor by UMD President Wallace Loh

News Resources

Return to Newsroom

Search News

Archived News

Events Resources

Events Calendar