Cortical structure and function are closely linked, shaping the neural basis of human behavior. This study explores how cortical surface area (SA), a structural feature, influences computational properties in human visual perception. Using a combination of psychophysical, neuroimaging, and computational modeling approaches, we find that variations in SA across the parietal and frontal cortices are linked to distinct behavioral patterns in a motion perception task. These differences in behavior correspond to specific parameters within a divisive normalization model, indicating a unique contribution of SA to the spatial organization of cortical circuitry. This work highlights the importance of cortical architecture in modifying computational processes that underlie perception, enhancing our understanding of how structural differences can influence neural function and behavior.
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http://dx.doi.org/10.1016/j.isci.2024.110490 | DOI Listing |
Proc Natl Acad Sci U S A
January 2025
Department of Psychology, University of Pennsylvania, Philadelphia, PA 19104.
Human brain evolution is marked by a disproportionate expansion of cortical regions associated with advanced perceptual and cognitive functions. While this expansion is often attributed to the emergence of novel specialized brain areas, modifications to evolutionarily conserved cortical regions also have been linked to species-specific behaviors. Distinguishing between these two evolutionary outcomes has been limited by the ability to make direct comparisons between species.
View Article and Find Full Text PDFJ Orthop Case Rep
January 2025
Department of Orthopedics, Stanley Medical College, Chennai, Tamil Nadu, India.
Introduction: Osteochondroma is a bony lesion arising from the surface of the bone. It com-prises a large percentage of all benign bone tumors. A unique feature of this tumor is the conti-nuity of cortical and medullary components between the normal bony tissue and aberrant tissue of osteochondroma.
View Article and Find Full Text PDFRes Vet Sci
January 2025
Clinic for Small Animal Surgery and Reproduction, Ludwig-Maximilians University Munich, Germany. Electronic address:
This study aims to provide an initial database to gain more detailed knowledge of the trabecular and cortical bone structure of pelvic and femur bones in cats and smaller dogs. Additionally, the bony microarchitecture between cats and smaller dogs was compared to identify possible differences between those species. These findings could potentially improve the development of non-cemented total hip replacement (THR).
View Article and Find Full Text PDFCell Death Differ
January 2025
The Sainsbury Laboratory, University of East Anglia, Norwich, UK.
Fungi are the most important group of plant pathogens, responsible for many of the world's most devastating crop diseases. One of the reasons they are such successful pathogens is because several fungi have evolved the capacity to breach the tough outer cuticle of plants using specialized infection structures called appressoria. This is exemplified by the filamentous ascomycete fungus Magnaporthe oryzae, causal agent of rice blast, one of the most serious diseases affecting rice cultivation globally.
View Article and Find Full Text PDFInvest Ophthalmol Vis Sci
January 2025
Department of Physics, Boise State University, Boise, Idaho, United States.
Purpose: To elucidate the mechanical properties of the bovine lens cortical membrane (CM), the nuclear membrane (NM) containing cholesterol bilayer domains (CBDs), and whole bovine lenses.
Methods: The total lipids (lipids plus cholesterol) from the cortex and nucleus of a single bovine lens were isolated using the monophasic methanol extraction method. Supported CMs and NMs were prepared from total lipids extracted from the cortex and nucleus, respectively, using a rapid solvent exchange method and probe-tip sonication, followed by the fusion of unilamellar vesicles on a flat, freshly cleaved mica surface.
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