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Eric Poliner, Tomomi Takeuchi, Zhi-Yan Du, Christoph Benning, Eva M Farré
Utilization of microalgae has been hampered by limited tools for creating loss-of-function mutants. Furthermore, modified strains for deployment into the field must be free of antibiotic resistance genes and face fewer regulatory hurdles if they are transgene free. The oleaginous microalga, Nannochloropsis oceanica CCMP1779, is an emerging model for microalgal lipid metabolism. We present a one-vector episomal CRISPR/Cas9 system for N. oceanica that enables the generation of marker-free mutant lines. The CEN/ARS6 region from Saccharomyces cerevisiae was included in the vector to facilitate its maintenance as circular extrachromosal DNA...
April 20, 2018: ACS Synthetic Biology
Eric Poliner, Eva M Farré, Christoph Benning
Nannochloropsis is a genus of fast-growing microalgae that are regularly used for biotechnology applications. Nannochloropsis species have a high triacylglycerol content and their polar lipids are rich in the omega-3 long-chain polyunsaturated fatty acid, eicosapentaenoic acid. Placed in the heterokont lineage, the Nannochloropsis genus has a complex evolutionary history. Genome sequences are available for several species, and a number of transcriptomic datasets have been produced, making this genus a facile model for comparative genomics...
October 2018: Plant Cell Reports
Eric Poliner, Jane A Pulman, Krzysztof Zienkiewicz, Kevin Childs, Christoph Benning, Eva M Farré
Nannochloropsis oceanica is an oleaginous microalga rich in ω3 long-chain polyunsaturated fatty acids (LC-PUFAs) content, in the form of eicosapentaenoic acid (EPA). We identified the enzymes involved in LC-PUFA biosynthesis in N. oceanica CCMP1779 and generated multigene expression vectors aiming at increasing LC-PUFA content in vivo. We isolated the cDNAs encoding four fatty acid desaturases (FAD) and determined their function by heterologous expression in S. cerevisiae. To increase the expression of multiple fatty acid desaturases in N...
January 2018: Plant Biotechnology Journal
Krzysztof Zienkiewicz, Agnieszka Zienkiewicz, Eric Poliner, Zhi-Yan Du, Katharina Vollheyde, Cornelia Herrfurth, Sofia Marmon, Eva M Farré, Ivo Feussner, Christoph Benning
BACKGROUND: Photosynthetic microalgae are considered a viable and sustainable resource for biofuel feedstocks, because they can produce higher biomass per land area than plants and can be grown on non-arable land. Among many microalgae considered for biofuel production, Nannochloropsis oceanica (CCMP1779) is particularly promising, because following nutrient deprivation it produces very high amounts of triacylglycerols (TAG). The committed step in TAG synthesis is catalyzed by acyl-CoA:diacylglycerol acyltransferase (DGAT)...
2017: Biotechnology for Biofuels
Lalit K Golani, Adrianne Wallace-Povirk, Siobhan M Deis, Jennifer Wong, Jiyuan Ke, Xin Gu, Sudhir Raghavan, Mike R Wilson, Xinxin Li, Lisa Polin, Parker W de Waal, Kathryn White, Juiwanna Kushner, Carrie O'Connor, Zhanjun Hou, H Eric Xu, Karsten Melcher, Charles E Dann, Larry H Matherly, Aleem Gangjee
Targeted antifolates with heteroatom replacements of the carbon vicinal to the phenyl ring in 1 by N (4), O (8), or S (9), or with N-substituted formyl (5), acetyl (6), or trifluoroacetyl (7) moieties, were synthesized and tested for selective cellular uptake by folate receptor (FR) α and β or the proton-coupled folate transporter. Results show increased in vitro antiproliferative activity toward engineered Chinese hamster ovary cells expressing FRs by 4-9 over the CH2 analogue 1. Compounds 4-9 inhibited de novo purine biosynthesis and glycinamide ribonucleotide formyltransferase (GARFTase)...
September 8, 2016: Journal of Medicinal Chemistry
Eric Poliner, Nicholas Panchy, Linsey Newton, Guangxi Wu, Andrew Lapinsky, Blair Bullard, Agnieszka Zienkiewicz, Christoph Benning, Shin-Han Shiu, Eva M Farré
Nannochloropsis oceanica CCMP1779 is a marine unicellular stramenopile and an emerging reference species for basic research on oleogenic microalgae with biotechnological relevance. We investigated its physiology and transcriptome under light/dark cycles. We observed oscillations in lipid content and a predominance of cell division in the first half of the dark phase. Globally, more than 60% of the genes cycled in N. oceanica CCMP1779, with gene expression peaking at different times of the day. Interestingly, the phase of expression of genes involved in certain biological processes was conserved across photosynthetic lineages...
September 2015: Plant Journal: for Cell and Molecular Biology
Seyed Reza Hashemizad, Sam Tsitrin, Polin Yadak, Yingquan He, Daniel Cuneo, Eric Paul Williamson, Devin Liner, Weining Man
Recently, disordered photonic materials have been suggested as an alternative to periodic crystals for the formation of a complete photonic bandgap (PBG). In this article we will describe the methods for constructing and characterizing macroscopic disordered photonic structures using microwaves. The microwave regime offers the most convenient experimental sample size to build and test PBG media. Easily manipulated dielectric lattice components extend flexibility in building various 2D structures on top of pre-printed plastic templates...
2014: Journal of Visualized Experiments: JoVE
Lu-Ann Papile, Jill E Baley, William Benitz, James Cummings, Waldemar A Carlo, Eric Eichenwald, Praveen Kumar, Richard A Polin, Rosemarie C Tan, Kasper S Wang
Data from large randomized clinical trials indicate that therapeutic hypothermia, using either selective head cooling or systemic cooling, is an effective therapy for neonatal encephalopathy. Infants selected for cooling must meet the criteria outlined in published clinical trials. The implementation of cooling needs to be performed at centers that have the capability to manage medically complex infants. Because the majority of infants who have neonatal encephalopathy are born at community hospitals, centers that perform cooling should work with their referring hospitals to implement education programs focused on increasing the awareness and identification of infants at risk for encephalopathy, and the initial clinical management of affected infants...
June 2014: Pediatrics
Richard A Polin, Kristi Watterberg, William Benitz, Eric Eichenwald
No abstract text is available yet for this article.
June 2014: Pediatrics
Naima G Sharaf, Eric Poliner, Ryan L Slack, Martin T Christen, In-Ja L Byeon, Michael A Parniak, Angela M Gronenborn, Rieko Ishima
In contrast to the wealth of structural data available for the mature p66/p51 heterodimeric human immunodeficiency virus type 1 reverse transcriptase (RT), the structure of the homodimeric p66 precursor remains unknown. In all X-ray structures of mature RT, free or complexed, the processing site in the p66 subunit, for generating the p51 subunit, is sequestered into a β-strand within the folded ribonuclease H (RNH) domain and is not readily accessible to proteolysis, rendering it difficult to propose a simple and straightforward mechanism of the maturation step...
October 2014: Proteins
Paul M Thompson, Jason L Stein, Sarah E Medland, Derrek P Hibar, Alejandro Arias Vasquez, Miguel E Renteria, Roberto Toro, Neda Jahanshad, Gunter Schumann, Barbara Franke, Margaret J Wright, Nicholas G Martin, Ingrid Agartz, Martin Alda, Saud Alhusaini, Laura Almasy, Jorge Almeida, Kathryn Alpert, Nancy C Andreasen, Ole A Andreassen, Liana G Apostolova, Katja Appel, Nicola J Armstrong, Benjamin Aribisala, Mark E Bastin, Michael Bauer, Carrie E Bearden, Orjan Bergmann, Elisabeth B Binder, John Blangero, Henry J Bockholt, Erlend Bøen, Catherine Bois, Dorret I Boomsma, Tom Booth, Ian J Bowman, Janita Bralten, Rachel M Brouwer, Han G Brunner, David G Brohawn, Randy L Buckner, Jan Buitelaar, Kazima Bulayeva, Juan R Bustillo, Vince D Calhoun, Dara M Cannon, Rita M Cantor, Melanie A Carless, Xavier Caseras, Gianpiero L Cavalleri, M Mallar Chakravarty, Kiki D Chang, Christopher R K Ching, Andrea Christoforou, Sven Cichon, Vincent P Clark, Patricia Conrod, Giovanni Coppola, Benedicto Crespo-Facorro, Joanne E Curran, Michael Czisch, Ian J Deary, Eco J C de Geus, Anouk den Braber, Giuseppe Delvecchio, Chantal Depondt, Lieuwe de Haan, Greig I de Zubicaray, Danai Dima, Rali Dimitrova, Srdjan Djurovic, Hongwei Dong, Gary Donohoe, Ravindranath Duggirala, Thomas D Dyer, Stefan Ehrlich, Carl Johan Ekman, Torbjørn Elvsåshagen, Louise Emsell, Susanne Erk, Thomas Espeseth, Jesen Fagerness, Scott Fears, Iryna Fedko, Guillén Fernández, Simon E Fisher, Tatiana Foroud, Peter T Fox, Clyde Francks, Sophia Frangou, Eva Maria Frey, Thomas Frodl, Vincent Frouin, Hugh Garavan, Sudheer Giddaluru, David C Glahn, Beata Godlewska, Rita Z Goldstein, Randy L Gollub, Hans J Grabe, Oliver Grimm, Oliver Gruber, Tulio Guadalupe, Raquel E Gur, Ruben C Gur, Harald H H Göring, Saskia Hagenaars, Tomas Hajek, Geoffrey B Hall, Jeremy Hall, John Hardy, Catharina A Hartman, Johanna Hass, Sean N Hatton, Unn K Haukvik, Katrin Hegenscheid, Andreas Heinz, Ian B Hickie, Beng-Choon Ho, David Hoehn, Pieter J Hoekstra, Marisa Hollinshead, Avram J Holmes, Georg Homuth, Martine Hoogman, L Elliot Hong, Norbert Hosten, Jouke-Jan Hottenga, Hilleke E Hulshoff Pol, Kristy S Hwang, Clifford R Jack, Mark Jenkinson, Caroline Johnston, Erik G Jönsson, René S Kahn, Dalia Kasperaviciute, Sinead Kelly, Sungeun Kim, Peter Kochunov, Laura Koenders, Bernd Krämer, John B J Kwok, Jim Lagopoulos, Gonzalo Laje, Mikael Landen, Bennett A Landman, John Lauriello, Stephen M Lawrie, Phil H Lee, Stephanie Le Hellard, Herve Lemaître, Cassandra D Leonardo, Chiang-Shan Li, Benny Liberg, David C Liewald, Xinmin Liu, Lorna M Lopez, Eva Loth, Anbarasu Lourdusamy, Michelle Luciano, Fabio Macciardi, Marise W J Machielsen, Glenda M Macqueen, Ulrik F Malt, René Mandl, Dara S Manoach, Jean-Luc Martinot, Mar Matarin, Karen A Mather, Manuel Mattheisen, Morten Mattingsdal, Andreas Meyer-Lindenberg, Colm McDonald, Andrew M McIntosh, Francis J McMahon, Katie L McMahon, Eva Meisenzahl, Ingrid Melle, Yuri Milaneschi, Sebastian Mohnke, Grant W Montgomery, Derek W Morris, Eric K Moses, Bryon A Mueller, Susana Muñoz Maniega, Thomas W Mühleisen, Bertram Müller-Myhsok, Benson Mwangi, Matthias Nauck, Kwangsik Nho, Thomas E Nichols, Lars-Göran Nilsson, Allison C Nugent, Lars Nyberg, Rene L Olvera, Jaap Oosterlaan, Roel A Ophoff, Massimo Pandolfo, Melina Papalampropoulou-Tsiridou, Martina Papmeyer, Tomas Paus, Zdenka Pausova, Godfrey D Pearlson, Brenda W Penninx, Charles P Peterson, Andrea Pfennig, Mary Phillips, G Bruce Pike, Jean-Baptiste Poline, Steven G Potkin, Benno Pütz, Adaikalavan Ramasamy, Jerod Rasmussen, Marcella Rietschel, Mark Rijpkema, Shannon L Risacher, Joshua L Roffman, Roberto Roiz-Santiañez, Nina Romanczuk-Seiferth, Emma J Rose, Natalie A Royle, Dan Rujescu, Mina Ryten, Perminder S Sachdev, Alireza Salami, Theodore D Satterthwaite, Jonathan Savitz, Andrew J Saykin, Cathy Scanlon, Lianne Schmaal, Hugo G Schnack, Andrew J Schork, S Charles Schulz, Remmelt Schür, Larry Seidman, Li Shen, Jody M Shoemaker, Andrew Simmons, Sanjay M Sisodiya, Colin Smith, Jordan W Smoller, Jair C Soares, Scott R Sponheim, Emma Sprooten, John M Starr, Vidar M Steen, Stephen Strakowski, Lachlan Strike, Jessika Sussmann, Philipp G Sämann, Alexander Teumer, Arthur W Toga, Diana Tordesillas-Gutierrez, Daniah Trabzuni, Sarah Trost, Jessica Turner, Martijn Van den Heuvel, Nic J van der Wee, Kristel van Eijk, Theo G M van Erp, Neeltje E M van Haren, Dennis van 't Ent, Marie-Jose van Tol, Maria C Valdés Hernández, Dick J Veltman, Amelia Versace, Henry Völzke, Robert Walker, Henrik Walter, Lei Wang, Joanna M Wardlaw, Michael E Weale, Michael W Weiner, Wei Wen, Lars T Westlye, Heather C Whalley, Christopher D Whelan, Tonya White, Anderson M Winkler, Katharina Wittfeld, Girma Woldehawariat, Christiane Wolf, David Zilles, Marcel P Zwiers, Anbupalam Thalamuthu, Peter R Schofield, Nelson B Freimer, Natalia S Lawrence, Wayne Drevets
The Enhancing NeuroImaging Genetics through Meta-Analysis (ENIGMA) Consortium is a collaborative network of researchers working together on a range of large-scale studies that integrate data from 70 institutions worldwide. Organized into Working Groups that tackle questions in neuroscience, genetics, and medicine, ENIGMA studies have analyzed neuroimaging data from over 12,826 subjects. In addition, data from 12,171 individuals were provided by the CHARGE consortium for replication of findings, in a total of 24,997 subjects...
June 2014: Brain Imaging and Behavior
Weining Man, Marian Florescu, Kazue Matsuyama, Polin Yadak, Geev Nahal, Seyed Hashemizad, Eric Williamson, Paul Steinhardt, Salvatore Torquato, Paul Chaikin
We report the first experimental demonstration of a TE-polarization photonic band gap (PBG) in a 2D isotropic hyperuniform disordered solid (HUDS) made of dielectric media with a dielectric index contrast of 1.6:1, very low for PBG formation. The solid is composed of a connected network of dielectric walls enclosing air-filled cells. Direct comparison with photonic crystals and quasicrystals permitted us to investigate band-gap properties as a function of increasing rotational isotropy. We present results from numerical simulations proving that the PBG observed experimentally for HUDS at low index contrast has zero density of states...
August 26, 2013: Optics Express
Jun Ding, Jan Bierma, Mark R Smith, Eric Poliner, Carole Wolfe, Alex N Hadduck, Severino Zara, Mallori Jirikovic, Kari van Zee, Michael H Penner, Jana Patton-Vogt, Alan T Bakalinsky
Acetic acid inhibition of yeast fermentation has a negative impact in several industrial processes. As an initial step in the construction of a Saccharomyces cerevisiae strain with increased tolerance for acetic acid, mutations conferring resistance were identified by screening a library of deletion mutants in a multiply auxotrophic genetic background. Of the 23 identified mutations, 11 were then introduced into a prototrophic laboratory strain for further evaluation. Because none of the 11 mutations was found to increase resistance in the prototrophic strain, potential interference by the auxotrophic mutations themselves was investigated...
August 2013: Applied Microbiology and Biotechnology
Anne Caclin, Anne-Lise Paradis, Cédric Lamirel, Bertrand Thirion, Eric Artiges, Jean-Baptiste Poline, Jean Lorenceau
Visual shape and motion information, processed in distinct brain regions, should be combined to elicit a unitary coherent percept of an object in motion. In an fMRI study, we identified brain regions underlying the perceptual binding of motion and shape independently of the features-contrast, motion, and shape-used to design the moving displays. These displays alternately elicited a bound (moving diamond) or an unbound (disconnected moving segments) percept, and were either physically unchanging yet perceptually bistable or physically changing over time...
2012: Journal of Vision
Jason L Stein, Sarah E Medland, Alejandro Arias Vasquez, Derrek P Hibar, Rudy E Senstad, Anderson M Winkler, Roberto Toro, Katja Appel, Richard Bartecek, Ørjan Bergmann, Manon Bernard, Andrew A Brown, Dara M Cannon, M Mallar Chakravarty, Andrea Christoforou, Martin Domin, Oliver Grimm, Marisa Hollinshead, Avram J Holmes, Georg Homuth, Jouke-Jan Hottenga, Camilla Langan, Lorna M Lopez, Narelle K Hansell, Kristy S Hwang, Sungeun Kim, Gonzalo Laje, Phil H Lee, Xinmin Liu, Eva Loth, Anbarasu Lourdusamy, Morten Mattingsdal, Sebastian Mohnke, Susana Muñoz Maniega, Kwangsik Nho, Allison C Nugent, Carol O'Brien, Martina Papmeyer, Benno Pütz, Adaikalavan Ramasamy, Jerod Rasmussen, Mark Rijpkema, Shannon L Risacher, J Cooper Roddey, Emma J Rose, Mina Ryten, Li Shen, Emma Sprooten, Eric Strengman, Alexander Teumer, Daniah Trabzuni, Jessica Turner, Kristel van Eijk, Theo G M van Erp, Marie-Jose van Tol, Katharina Wittfeld, Christiane Wolf, Saskia Woudstra, Andre Aleman, Saud Alhusaini, Laura Almasy, Elisabeth B Binder, David G Brohawn, Rita M Cantor, Melanie A Carless, Aiden Corvin, Michael Czisch, Joanne E Curran, Gail Davies, Marcio A A de Almeida, Norman Delanty, Chantal Depondt, Ravi Duggirala, Thomas D Dyer, Susanne Erk, Jesen Fagerness, Peter T Fox, Nelson B Freimer, Michael Gill, Harald H H Göring, Donald J Hagler, David Hoehn, Florian Holsboer, Martine Hoogman, Norbert Hosten, Neda Jahanshad, Matthew P Johnson, Dalia Kasperaviciute, Jack W Kent, Peter Kochunov, Jack L Lancaster, Stephen M Lawrie, David C Liewald, René Mandl, Mar Matarin, Manuel Mattheisen, Eva Meisenzahl, Ingrid Melle, Eric K Moses, Thomas W Mühleisen, Matthias Nauck, Markus M Nöthen, Rene L Olvera, Massimo Pandolfo, G Bruce Pike, Ralf Puls, Ivar Reinvang, Miguel E Rentería, Marcella Rietschel, Joshua L Roffman, Natalie A Royle, Dan Rujescu, Jonathan Savitz, Hugo G Schnack, Knut Schnell, Nina Seiferth, Colin Smith, Vidar M Steen, Maria C Valdés Hernández, Martijn Van den Heuvel, Nic J van der Wee, Neeltje E M Van Haren, Joris A Veltman, Henry Völzke, Robert Walker, Lars T Westlye, Christopher D Whelan, Ingrid Agartz, Dorret I Boomsma, Gianpiero L Cavalleri, Anders M Dale, Srdjan Djurovic, Wayne C Drevets, Peter Hagoort, Jeremy Hall, Andreas Heinz, Clifford R Jack, Tatiana M Foroud, Stephanie Le Hellard, Fabio Macciardi, Grant W Montgomery, Jean Baptiste Poline, David J Porteous, Sanjay M Sisodiya, John M Starr, Jessika Sussmann, Arthur W Toga, Dick J Veltman, Henrik Walter, Michael W Weiner, Joshua C Bis, M Arfan Ikram, Albert V Smith, Vilmundur Gudnason, Christophe Tzourio, Meike W Vernooij, Lenore J Launer, Charles DeCarli, Sudha Seshadri, Ole A Andreassen, Liana G Apostolova, Mark E Bastin, John Blangero, Han G Brunner, Randy L Buckner, Sven Cichon, Giovanni Coppola, Greig I de Zubicaray, Ian J Deary, Gary Donohoe, Eco J C de Geus, Thomas Espeseth, Guillén Fernández, David C Glahn, Hans J Grabe, John Hardy, Hilleke E Hulshoff Pol, Mark Jenkinson, René S Kahn, Colm McDonald, Andrew M McIntosh, Francis J McMahon, Katie L McMahon, Andreas Meyer-Lindenberg, Derek W Morris, Bertram Müller-Myhsok, Thomas E Nichols, Roel A Ophoff, Tomas Paus, Zdenka Pausova, Brenda W Penninx, Steven G Potkin, Philipp G Sämann, Andrew J Saykin, Gunter Schumann, Jordan W Smoller, Joanna M Wardlaw, Michael E Weale, Nicholas G Martin, Barbara Franke, Margaret J Wright, Paul M Thompson
Identifying genetic variants influencing human brain structures may reveal new biological mechanisms underlying cognition and neuropsychiatric illness. The volume of the hippocampus is a biomarker of incipient Alzheimer's disease and is reduced in schizophrenia, major depression and mesial temporal lobe epilepsy. Whereas many brain imaging phenotypes are highly heritable, identifying and replicating genetic influences has been difficult, as small effects and the high costs of magnetic resonance imaging (MRI) have led to underpowered studies...
April 15, 2012: Nature Genetics
Benjamin Thyreau, Yannick Schwartz, Bertrand Thirion, Vincent Frouin, Eva Loth, Sabine Vollstädt-Klein, Tomas Paus, Eric Artiges, Patricia J Conrod, Gunter Schumann, Robert Whelan, Jean-Baptiste Poline
In this paper we investigate the use of classical fMRI Random Effect (RFX) group statistics when analyzing a very large cohort and the possible improvement brought from anatomical information. Using 1326 subjects from the IMAGEN study, we first give a global picture of the evolution of the group effect t-value from a simple face-watching contrast with increasing cohort size. We obtain a wide activated pattern, far from being limited to the reasonably expected brain areas, illustrating the difference between statistical significance and practical significance...
May 15, 2012: NeuroImage
Frauke Nees, Jelka Tzschoppe, Christopher J Patrick, Sabine Vollstädt-Klein, Sabina Steiner, Luise Poustka, Tobias Banaschewski, Gareth J Barker, Christian Büchel, Patricia J Conrod, Hugh Garavan, Andreas Heinz, Jürgen Gallinat, Mark Lathrop, Karl Mann, Eric Artiges, Tomas Paus, Jean-Baptiste Poline, Trevor W Robbins, Marcella Rietschel, Michael N Smolka, Rainer Spanagel, Maren Struve, Eva Loth, Gunter Schumann, Herta Flor
Individual variation in reward sensitivity may have an important role in early substance use and subsequent development of substance abuse. This may be especially important during adolescence, a transition period marked by approach behavior and a propensity toward risk taking, novelty seeking and alteration of the social landscape. However, little is known about the relative contribution of personality, behavior, and brain responses for prediction of alcohol use in adolescents. In this study, we applied factor analyses and structural equation modeling to reward-related brain responses assessed by functional magnetic resonance imaging during a monetary incentive delay task...
March 2012: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
Sita Kugel Desmoulin, Lei Wang, Eric Hales, Lisa Polin, Kathryn White, Juiwanna Kushner, Mark Stout, Zhanjun Hou, Christina Cherian, Aleem Gangjee, Larry H Matherly
The proton-coupled folate transporter (PCFT) is a proton-folate symporter with an acidic pH optimum. By real-time reverse transcription-polymerase chain reaction, PCFT was expressed in the majority of 53 human tumor cell lines, with the highest levels in Caco-2 (colorectal adenocarcinoma), SKOV3 (ovarian), and HepG2 (hepatoma) cells. A novel 6-substituted pyrrolo[2,3-d]pyrimidine thienoyl antifolate (compound 1) was used to establish whether PCFT can deliver cytotoxic drug under pH conditions that mimic the tumor microenvironment...
December 2011: Molecular Pharmacology
Amir M Tahmasebi, Eric Artiges, Tobias Banaschewski, Gareth J Barker, Ruediger Bruehl, Christian Büchel, Patricia J Conrod, Herta Flor, Hugh Garavan, Jürgen Gallinat, Andreas Heinz, Bernd Ittermann, Eva Loth, Klara Mareckova, Jean-Luc Martinot, Jean-Baptiste Poline, Marcella Rietschel, Michael N Smolka, Andreas Ströhle, Gunter Schumann, Tomáš Paus
Large-scale magnetic resonance (MR) studies of the human brain offer unique opportunities for identifying genetic and environmental factors shaping the human brain. Here, we describe a dataset collected in the context of a multi-centre study of the adolescent brain, namely the IMAGEN Study. We focus on one of the functional paradigms included in the project to probe the brain network underlying processing of ambiguous and angry faces. Using functional MR (fMRI) data collected in 1,110 adolescents, we constructed probabilistic maps of the neural network engaged consistently while viewing the ambiguous or angry faces; 21 brain regions responding to faces with high probability were identified...
April 2012: Human Brain Mapping
S Schneider, J Peters, U Bromberg, S Brassen, M M Menz, S F Miedl, E Loth, T Banaschewski, A Barbot, G Barker, P J Conrod, J W Dalley, H Flor, J Gallinat, H Garavan, A Heinz, B Itterman, C Mallik, K Mann, Eric Artiges, T Paus, J-B Poline, M Rietschel, L Reed, M N Smolka, R Spanagel, C Speiser, A Ströhle, M Struve, G Schumann, C Büchel
Previous studies have observed a sex-dependent lateralization of amygdala activation related to emotional memory. Specifically, it was shown that the activity of the right amygdala correlates significantly stronger with memory for images judged as arousing in men than in women, and that there is a significantly stronger relationship in women than in men between activity of the left amygdala and memory for arousing images. Using a large sample of 235 male adolescents and 235 females matched for age and handedness, we investigated the sex-specific lateralization of amygdala activation during an emotional face perception fMRI task...
June 1, 2011: NeuroImage
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