Papers for the month of April 2015

"Conceptual art made simple for neuroaesthetics"
Frontiers in Human Neuroscience, 9:267

Mouse over here for a brief summary or click to open article in a new tab.Cognitive neuroscience and conceptual art share some interesting common ground. Both are concerned with very basic questions about meaning and objecthood. By focusing on reductionist and contrastive aspects of conceptual art, perhaps neuroscience methods can be applied to the investigation of such questions using everyday objects.

Crowder, E.

"Macaque monkeys experience visual crowding"
Journal of Vision, 15:5

Mouse over here for a brief summary or click to open article in a new tab.In peripheral vision, objects that are easily discriminated on their own become less discriminable in the presence of surrounding clutter. This phenomenon is known as crowding.The neural mechanisms underlying crowding are not well understood. Better insight might come from single-neuron recording in nonhuman primates, provided they exhibit crowding; however, previous demonstrations of crowding have been confined to humans. In the present study, we set out to determine whether crowding occurs in rhesus macaque monkeys. We found that animals trained to identify a target letter among flankers displayed three hallmarks of crowding as established in humans. First, at a given eccentricity, increasing the spacing between the target and the flankers improved recognition accuracy. Second, the critical spacing, defined as the minimal spacing at which target discrimination was reliable, was proportional to eccentricity. Third, the critical spacing was largely unaffected by object size. We conclude that monkeys, like humans, experience crowding. These findings open the door to studies of crowding at the neuronal level in the monkey visual system.

Finley JM, Long A, Bastian AJ

"Spatial and Temporal Control Contribute to Step Length Asymmetry During Split-Belt Adaptation and Hemiparetic Gait"
Neuralrehabilitation and Neural Repair, N/A:N/A

Mouse over here for a brief summary or click to open article in a new tab.We show that spatial and temporal deficits in the control of the limb contribute to the step length asymmetry in the gait of post-stroke patients.


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