Results 111 to 120 of about 104,006 (269)

Integration of navigation and action selection functionalities in a computational model of cortico-basal ganglia-thalamo-cortical loops [PDF]

, 2005
This article describes a biomimetic control architecture affording an animat both action selection and navigation functionalities. It satisfies the survival constraint of an artificial metabolism and supports several complementary navigation strategies ...
Berthoz, Alain, Filliat, David, Girard, Benoît, Guillot, Agnès, Meyer, Jean-Arcady   +4 more
core   +3 more sources

Toward Harmonizing Quantification of Dopamine Neuron Imaging Biomarkers in Parkinson's Disease: The Centamine Scale

Annals of Neurology, EarlyView.
Objective Dopaminergic imaging is a key biomarker for both the investigation of the biology of Parkinson's disease and related synucleinopathies and the evaluation of potential therapies in clinical trials. This work presents a harmonized approach for quantifying dopaminergic molecular imaging tracers, such as [123I]ioflupane (dopamine transporter scan
Zhen Fan, Graham Searle, Gaia Rizzo, Justin Albani, Patrick Cella, Robert Comley, Gregory Klein, Luca Passamonti, Cristian Salinas, Adam J. Schwarz, Leonardo Iaccarino, Gilles Tamagnan, Jamie Eberling, Ken Marek, John Seibyl, Roger N. Gunn, The Parkinson's Progression Markers Initiative, Kenneth Marek, Caroline Tanner, Tanya Simuni, Andrew Siderowf, Douglas Galasko, Lana Chahine, Christopher Coffey, Kalpana Merchant, Kathleen Poston, Roseanne Dobkin, Tatiana Foroud, Brit Mollenhauer, Dan Weintraub, Ethan Brown, Karl Kieburtz, Mark Frasier, Todd Sherer, Sohini Chowdhury, Roy Alcalay, Aleksandar Videnovic, Duygu Tosun‐Turgut, Werner Poewe, Susan Bressman, Jan Hammer, Raymond James, Ekemini Riley, John Seibyl, Leslie Shaw, David Standaert, Sneha Mantri, Nabila Dahodwala, Michael Schwarzschild, Connie Marras, Hubert Fernandez, Ira Shoulson, Helen Rowbotham, Paola Casalin, Claudia Trenkwalder, Todd Sherer, Sohini Chowdhury, Mark Frasier, Jamie Eberling, Katie Kopil, Alyssa O'Grady, Maggie McGuire Kuhl, Leslie Kirsch, Tawny Willson, Charles Adler, Roy Alcalay, Amy Amara, Paolo Barone, Bastiaan Bloem, Susan Bressman, Kathrin Brockmann, Norbert Brüggemann, Lana Chahine, Kelvin Chou, Nabila Dahodwala, Alberto Espay, Stewart Factor, Hubert Fernandez, Michelle Fullard, Douglas Galasko, Robert Hauser, Penelope Hogarth, Shu‐Ching Hu, Michele Hu, Stuart Isaacson, Christine Klein, Rejko Krueger, Mark Lew, Zoltan Mari, Connie Marras, Maria Jose Martí, Nikolaus McFarland, Tiago Mestre, Brit Mollenhauer, Emile Moukheiber, Alastair Noyce, Njideka Okubadejo, Sarah O'Shea, Rajesh Pahwa, Nicola Pavese, Werner Poewe, Ron Postuma, Giulietta Riboldi, Lauren Ruffrage, Javier Ruiz Martinez, David Russell, Marie H Saint‐Hilaire, Neil Santos, Wesley Schlett47, Ruth Schneider, Holly Shill, David Shprecher, Tanya Simuni, David Standaert, Leonidas Stefanis, Yen Tai, Caroline Tanner, Arjun Tarakad, Eduardo Tolosa PhD34, Aleksandar Videnovic, Susan Ainscough, Courtney Blair, Erica Botting, Isabella Chung, Kelly Clark, Ioana Croitoru, Kelly DeLano, Iris Egner, Fahrial Esha, May Eshel, Frank Ferrari, Victoria Kate Foster, Alicia Garrido, Madita Grümmer, Bethzaida Herrera, Ella Hilt, Chloe Huntzinger, Raymond James, Farah Kausar, Christos Koros, Yara Krasowski60, Dustin Le, Ying Liu, Taina M. Marques, Helen Mejia Santana, Sherri Mosovsky, Jennifer Mule, Philip Ng, Lauren O'Brien, Abiola Ogunleye, Oluwadamilola Ojo, Obi Onyinanya, Lisbeth Pennente, Romina Perrotti, Michael Pileggi, Ashwini Ramachandran, Deborah Raymond, Jamil Razzaque, Shawna Reddie, Kori Ribb, Kyle Rizer, Janelle Rodriguez, Stephanie Roman, Clarissa Sanchez, Cristina Simonet, Anisha Singh, Elisabeth Sittig, Barbara Sommerfeld, Angela Stovall, Bobbie Stubbeman, Alejandra Valenzuela, Catherine Wandell, Diana Willeke, Karen Williams, Dilinuer Wubuli   +174 more
wiley   +1 more source

Reduction in ventral striatal activity when anticipating a reward in depression and schizophrenia: a replicated cross-diagnostic finding

Frontiers in Psychology, 2015
In the research domain framework (RDoC), dysfunctional reward expectation has been proposed to be a cross-diagnostic domain in psychiatry, which may contribute to symptoms common to various neuropsychiatric conditions, such as anhedonia or apathy ...
Gonzalo eArrondo, Nuria eSegarra, Antonio eMetastasio, Hisham eZiauddeen, Hisham eZiauddeen, Hisham eZiauddeen, Jennifer eSpencer, Jennifer eSpencer, Niels R. Reinders, Robert B. Dudas, Robert B. Dudas, Robert B. Dudas, Trevor W. Robbins, Trevor W. Robbins, Paul C. Fletcher, Paul C. Fletcher, Paul C. Fletcher, Paul C. Fletcher, Graham K. Murray, Graham K. Murray, Graham K. Murray   +20 more
doaj   +1 more source

Distinct thalamic functional connectivity and volume patterns across focal epilepsies in children: A multimodal neuroimaging study

Epilepsia, EarlyView.
Abstract Objective The thalamus is a key hub in seizure propagation, and its nuclei are emerging targets for neuromodulation. However, the contributions of individual nuclei to epileptic networks remain unclear, particularly in children, who are less studied than adults.
Xiyu Feng, Aswin Chari, Maria H. Eriksson, Freya Prentice, Xiaosong He, Hua Xie, Leigh Sepeta, M. Zubair Tahir, Jonathan D. Clayden, Martin M. Tisdall, Torsten Baldeweg, Rory J. Piper   +11 more
wiley   +1 more source

PROJECTIONS OF DORSAL AND MEDIAN RAPHE NUCLEI TO DORSAL AND VENTRAL STRIATUM [PDF]

Acta Medica Iranica, 2007
The ascending serotonergic projections are derived mainly from mesencephalic raphe nuclei. Topographical projections from mesencephalic raphe nuclei to the striatum were examined in the rat by the retrograde transport technique of HRP (horseradish ...
G. R. Hassanzadeh G. Behzadi
doaj   +1 more source

Segmentation of Striatal Brain Structures from High Resolution PET Images

International Journal of Biomedical Imaging, 2009
We propose and evaluate an automatic segmentation method for extracting striatal brain structures (caudate, putamen, and ventral striatum) from parametric C11-raclopride positron emission tomography (PET) brain images.
Ricardo J. P. C. Farinha, Ulla Ruotsalainen, Jussi Hirvonen, Lauri Tuominen, Jarmo Hietala, José M. Fonseca, Jussi Tohka   +6 more
doaj   +1 more source

Absence seizures: Update on signaling mechanisms and networks

Epilepsia Open, EarlyView.
Abstract Absence seizures (AS) are a hallmark of genetic generalized epilepsies (GGE), characterized by brief episodes of impaired consciousness accompanied by electroencephalographic spike‐and‐wave discharges (SWDs). Traditionally attributed to cortico‐thalamo‐cortical (CTC) dysrhythmia, emerging evidence suggests a more intricate pathophysiological ...
Ozlem Akman, Filiz Onat
wiley   +1 more source

Stress and Decision Making: Effects on Valuation, Learning, and Risk-taking [PDF]

, 2017
A wide range of stressful experiences can influence human decision making in complex ways beyond the simple predictions of a fight-or-flight model. Recent advances may provide insight into this complicated interaction, potentially in directions that ...
Delgado, Mauricio R., Porcelli, Anthony J.   +1 more
core   +2 more sources

The Hypoactivity Associated with the Repeated Exposure to Atrazine Is Related to Decreases in the Specific Binding to D1-DA Receptors in the Striatum of Rats

Journal of Toxicology, 2017
The herbicide atrazine (ATR) has a potential toxic effect on the neuronal circuits of the brain, specifically on two major dopaminergic pathways: the nigrostriatal and mesolimbic circuits.
José Abraham Márquez-Ramos, Isela Hernández-Plata, Mauricio Díaz-Muñoz, Verónica M. Rodríguez   +3 more
doaj   +1 more source

Effect of surgical antimicrobial prophylaxis duration for colic surgery on complications and resistome

Equine Veterinary Journal, EarlyView.
Abstract Background Based on human studies, surgical antimicrobial (AMD) prophylaxis (SAP) beyond 24 h is unnecessary and potentially detrimental. Objective To compare clinical and microbiological outcomes in patients receiving 24‐ or 72‐h of SAP for colic surgery. Study Design Prospective randomised clinical trial.
Louise L. Southwood, Alicia Long, Jairo Perez, Scott Daniel, Kyle Bittinger, Maia Aitken, Laurel Redding   +6 more
wiley   +1 more source