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Perceived size matters

Philipp Sterzer, Geraint Rees
2006 Nature Neuroscience  
Activity in early visual processing areas is often thought to reflect physical input from the retina, rather than conscious perception.  ...  The general usefulness of this approach notwithstanding, future studies will have to take into account the possibility that visual context can dynamically modify this retinotopy, even in early visual areas  ...  Activity at the earliest stages of cortical processing does not therefore simply reflect the pattern of light falling on the retina.  ... 
doi:10.1038/nn0306-302b pmid:16498422 fatcat:s3nstjut5vd2jicfjzcbbrpb2e

Memory Strength Effects in fMRI Studies: A Matter of Confidence

Greig I. de Zubicaray, Katie L. McMahon, Simon Dennis, John C. Dunn
2011 Journal of Cognitive Neuroscience  
■ To investigate potentially dissociable recognition memory responses in the hippocampus and perirhinal cortex, fMRI studies have often used confidence ratings as an index of memory strength.  ...  The results are consistent with predictions of single-process models of recognition memory. ■  ...  The authors are grateful to two anonymous reviewers for their helpful comments on the manuscript.  ... 
doi:10.1162/jocn.2010.21601 pmid:21126157 fatcat:c3vnqi7bnzeflovwqmbad23smm

Gender Differences in Visuospatial Working Memory —Does Emotion Matter?

Andrés A. González-Garrido, Fabiola R. Gómez-Velázquez, Henrique Sequeira, Julieta Ramos-Loyo, Adriana L. López-Franco
2013 International Journal of Psychological Studies  
Sex-based differences in visuospatial working memory (VSWM) processing have been documented previously.  ...  However, there is a significant lack of empirical data on the gender-related effects on both cognitive load, and the emotional content of spatially-remembered objects in VSWM.  ...  Evidence from several fMRI studies using dual-task designs (de Fockert, Rees, Frith, & Lavie, 2001; Rissman, Gazzaley, & D'Esposito, 2009 ) has shown that top-down signals related to working memory may  ... 
doi:10.5539/ijps.v5n1p11 fatcat:wbnqoi4k5fgnfpttsi6yzsjmmq

Association of the Ser704Cys DISC1 polymorphism with human hippocampal formation gray matter and function during memory encoding

Annabella Di Giorgio, Giuseppe Blasi, Fabio Sambataro, Antonio Rampino, Apostolos Papazacharias, Francesco Gambi, Raffaella Romano, Grazia Caforio, Miriam Rizzo, Valeria Latorre, Teresa Popolizio, Bhaskar Kolachana (+4 others)
2008 European Journal of Neuroscience  
formation (HF) gray matter volume and function (as assessed with functional MRI) as well as HF functional coupling with the neural network engaged during encoding of recognition memory.  ...  Further, Ser/Ser subjects exhibited greater engagement of the HF together with greater HF-dorsolateral prefrontal cortex functional coupling during memory encoding, in spite of similar behavioral performance  ...  Acknowledgments We are thankful to Riccarda Lomuscio, BA, and Leonardo Fazio, PhD, for help with acquisition of the data, and to Paolo Taurisano, PhD, for help with fMRI data analysis.  ... 
doi:10.1111/j.1460-9568.2008.06482.x pmid:19046394 pmcid:PMC2865560 fatcat:ankkgwtjbfah3ivpxokj6yq3di

Declined functional connectivity of white matter during rest and working memory tasks associates with cognitive impairments in schizophrenia [article]

Yurui Gao, Muwei Li, Anna S Huang, Adam W Anderson, Zhaohua Ding, Stephan H Heckers, Neil D Woodward, John C Gore
2020 medRxiv   pre-print
METHODS: Resting-state and spatial working memory task fMRI images were acquired on 67 healthy subjects and 84 patients with schizophrenia.  ...  Furthermore, working memory tasks expose FC deficits in more WM bundles and more cognitive associates in schizophrenia than resting state does.  ...  We also thank the Advanced Computing Center for Research and Education (ACCRE) at Vanderbilt University for distributed computation.  ... 
doi:10.1101/2020.05.16.20091397 fatcat:yyay7knbzzf5lkvlabzyedvcze

Diffusion-Informed Spatial Smoothing of fMRI Data in White Matter Using Spectral Graph Filters [article]

David Abramian, Martin Larsson, Anders Eklund, Iman Aganj, Carl-Fredrik Westin, Hamid Behjat
2020 bioRxiv   pre-print
Brain activation mapping using functional magnetic resonance imaging (fMRI) has been extensively studied in brain gray matter (GM), whereas in large disregarded for probing white matter (WM).  ...  filters conventionally used for smoothing fMRI data are inadequate for denoising the WM BOLD signal as they are incapable of adapting to the underlying domain of the BOLD signal in white matter.  ...  Spatial smoothing tailored to fMRI data in white matter Typical fMRI analysis pipelines rely on the assumption that the BOLD signal exhibits isotropic spatial profiles at focal activated regions (Carp  ... 
doi:10.1101/2020.10.25.353920 fatcat:lq2yq72nuzdo7e6gtk6zizvbb4

Automated white matter fiber tract identification in patients with brain tumors

Lauren J. O'Donnell, Yannick Suter, Laura Rigolo, Pegah Kahali, Fan Zhang, Isaiah Norton, Angela Albi, Olutayo Olubiyi, Antonio Meola, Walid I. Essayed, Prashin Unadkat, Pelin Aksit Ciris (+4 others)
2017 NeuroImage: Clinical  
Acknowledgements We gratefully acknowledge the funding provided by the following National Institutes of Health (NIH) grants: U01 CA199459, R03 NS088301, P41 EB015898, National Center for Image-Guided Therapy  ...  This does not correct for echo-planar imaging distortions, which are expected to be on the order of 2 mm in the phase-encode direction in patient data (Treiber et al., 2016) , and are generally neglected  ...  All tracts were detected by both methods except for P3 right AF, which was not detected by the expert selection using anatomical ROIs.  ... 
doi:10.1016/j.nicl.2016.11.023 pmid:27981029 pmcid:PMC5144756 fatcat:3oxbuvzj2nd2hkxvk437omnvie

Diffusion-Informed Spatial Smoothing of fMRI Data in White Matter Using Spectral Graph Filters

David Abramian, Martin Larsson, Anders Eklund, Iman Aganj, Carl-Fredrik Westin, Hamid Behjat
2021 NeuroImage  
Brain activation mapping using functional magnetic resonance imaging (fMRI) has been extensively studied in brain gray matter (GM), whereas in large disregarded for probing white matter (WM).  ...  We use the proposed filters to spatially smooth fMRI data in WM, as an alternative to the conventional practice of using isotropic Gaussian filters.  ...  In the present study, we only explored spatial smoothing of taskbased fMRI data within the context of activation mapping, whereas DSS can be readily applied to WM resting-state fMRI data, where recent  ... 
doi:10.1016/j.neuroimage.2021.118095 pmid:34000402 pmcid:PMC8356807 fatcat:7lh42ipdezdqjk7zqaxjrwp7p4

Recognizing what matters: Value improves recognition by selectively enhancing recollection

Joseph P. Hennessee, Alan D. Castel, Barbara J. Knowlton
2017 Journal of Memory and Language  
These point-values were used to simulate some information being more important than other information. They found that although young adults can recall more  ...  In Experiment 3, recognition of words was accompanied by a test of memory for incidental details. Across all experiments, participants were more likely to recognize items with higher pointvalue.  ...  The findings of Experiment 3 were presented at the 56 th Psychonomics Annual Meeting, Chicago, IL.  ... 
doi:10.1016/j.jml.2016.12.004 pmid:28827894 pmcid:PMC5562370 fatcat:cstgg4e53rboroffcvwf3ipycy

Digital Matters: Processes of Normalization in Medical Imaging

Hannah Fitsch, Kathrin Friedrich
2018 Catalyst Feminism Theory Technoscience  
In particular, the ideas of Joseph Fourier informed the development of fMRI imaging algorithms, which are currently applied in experimental contexts.  ...  Second, we analyze how the application of these algorithms enables and determines practices in fMRI-based research.  ...  How does the use of imaging processes change our understanding of living matter if imaging technologies seemingly allow us to open up the human body to analysis in real time?  ... 
doi:10.28968/cftt.v4i2.29911 fatcat:lw6wax6dljgynnm2rogmjawhz4

White matter pathways and social cognition

Yin Wang, Athanasia Metoki, Kylie H. Alm, Ingrid R. Olson
2018 Neuroscience and Biobehavioral Reviews  
The combination of an in-depth literature review and the empirical investigation gives us an unprecedented, well-defined landscape of white matter pathways underlying major social brain networks.  ...  Researchers have traditionally focused their attention on functional response properties of these gray matter networks and neglected the vital role of white matter connections in establishing such networks  ...  The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institute of Mental Health or the National Institutes of Health.  ... 
doi:10.1016/j.neubiorev.2018.04.015 pmid:29684403 pmcid:PMC5993647 fatcat:udy4rbl3gnfsfgi34aztppipi4

Non-linearity matters: a deep learning solution to the generalization of hidden brain patterns across population cohorts [article]

Mariam Zabihi, Seyed Mostafa Kia, Thomas Wolfers, Richard Dinga, Alberto Llera, Danilo Bzdok, Christian Beckmann, Andre marquand
2021 bioRxiv   pre-print
The increasing number of neuroimaging scans in recent years has facilitated the use of complex nonlinear approaches to analyzing such data.  ...  employed a 3-dimensional autoencoder with an architecture designed from the ground up for task-fMRI data.  ...  memory.  ... 
doi:10.1101/2021.03.10.434856 fatcat:cv3ymi57czhgxgqk3faou3dfay

White Matter and Social Cognition [article]

Yin Wang, Athanasia Metoki, Kylie H. Alm, Ingrid R. Olson
2017 bioRxiv   pre-print
Social neuroscience has traditionally focused its attention on functional response properties of these gray matter networks and neglected the vital role of white matter (WM) connections in establishing  ...  The combination of an in-depth literature review and the empirical investigation gives us an unprecedented, well-defined landscape of WM pathways underlying major social brain networks.  ...  The plotted data were extracted from https://www.ncbi.nlm.nih.gov/pubmed/ on 4/30/2017, using the search term "(social) AND (gray matter OR fMRI OR functional imaging)" for gray matter research (gray bars  ... 
doi:10.1101/179473 fatcat:wdwtjmnibvfxloegcuyby23aiy

Metaphor comprehension in Alzheimer's disease: Novelty matters

Martina Amanzio, Giuliano Geminiani, Daniela Leotta, Stefano Cappa
2008 Brain and Language  
This ability was not related to global cognitive deterioration or to deficits in the cognitive domains of attention, memory and language comprehension.  ...  The relationship between novel metaphor comprehension and performance in the visual-spatial planning task of the Behavioral Assessment of the Dysexecutive Syndrome (BADS) suggests that executive impairment  ...  Acknowledgment We wish to thank Professor Costanza Papagno for her useful comments on a previous version of the paper.  ... 
doi:10.1016/j.bandl.2007.08.003 pmid:17897706 fatcat:v53laqxfqraknlj7bifcyh3w4q

Structural Differences in Hippocampal and Prefrontal Gray Matter Volume Support Flexible Context-Dependent Navigation Ability

T. I. Brown, A. S. Whiteman, I. Aselcioglu, C. E. Stern
2014 Journal of Neuroscience  
Our findings provide novel evidence that individual differences in gray matter volume in the hippocampus and dorsolateral prefrontal cortex correlate with our ability rapidly to learn and flexibly navigate  ...  We related differences in flexible navigation performance to differences in brain morphology in healthy young adults using voxel-based morphometry.  ...  We also analyzed a correlate of Critical Decision learning rate using a signal detection theory-based approach.  ... 
doi:10.1523/jneurosci.2202-13.2014 pmid:24501370 pmcid:PMC3913873 fatcat:mm5xvhos6bg3boc7v34iyz4xfe
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