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Liu W, Kohn N, Fernández G. Probing the neural dynamics of mnemonic representations after the initial consolidation. Neuroimage 2020; 221:117213. [PMID: 32739553 DOI: 10.1016/j.neuroimage.2020.117213] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 07/22/2020] [Accepted: 07/26/2020] [Indexed: 12/22/2022] Open
Abstract
Memories are not stored as static engrams, but as dynamic representations affected by processes occurring after initial encoding. Previous studies revealed changes in activity and mnemonic representations in visual processing areas, parietal lobe, and hippocampus underlying repeated retrieval and suppression. However, these neural changes are usually induced by memory modulation immediately after memory formation. Here, we investigated 27 healthy participants with a two-day functional Magnetic Resonance Imaging study design to probe how established memories are dynamically modulated by retrieval and suppression 24 h after learning. Behaviorally, we demonstrated that established memories can still be strengthened by repeated retrieval. By contrast, repeated suppression had a modest negative effect, and suppression-induced forgetting was associated with individual suppression efficacy. Neurally, we demonstrated item-specific pattern reinstatements in visual processing areas, parietal lobe, and hippocampus. Then, we showed that repeated retrieval reduced activity amplitude in the ventral visual cortex and hippocampus, but enhanced the distinctiveness of activity patterns in the ventral visual cortex and parietal lobe. Critically, reduced activity was associated with enhanced representation of idiosyncratic memory traces in the ventral visual cortex and precuneus. In contrast, repeated memory suppression was associated with reduced lateral prefrontal activity, but relative intact mnemonic representations. Our results replicated most of the neural changes induced by memory retrieval and suppression immediately after learning and extended those findings to established memories after initial consolidation. Active retrieval seems to promote episode-unique mnemonic representations in the neocortex after initial encoding but also consolidation.
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Cabanelas E, Panadero R, Baumman A, Alves MP, Summerfield A, García-Dios D, Díaz P, Remesar S, Fernández G, Morrondo MP, Díez-Baños P, López CM. Cytokine expression in bovine PBMC cultures stimulated with Hypoderma lineatum antigens. Vet Parasitol 2020; 283:109165. [PMID: 32535488 DOI: 10.1016/j.vetpar.2020.109165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 06/04/2020] [Accepted: 06/06/2020] [Indexed: 10/24/2022]
Abstract
Hypoderma antigens are involved in host inflammation and immune response, conditioning larvae survival. In this study, peripheral blood mononuclear cell (PBMC) cultures from Hypoderma sensitized and unsensitized cattle were performed to determine the effect of H. lineatum antigens and incubation time (18, 24, 48 h) on IFN-γ, TNF-α, IL-10 and IL-4 mRNA gene expression determined by RT-qPCR. TNF-α and IL-4 gene expression were higher in Hypoderma previously sensitized PBMCs, suggesting that a mixed Th1/Th2 response may play a significant role in host defence reactions against Hypoderma exhibited by previously infested cattle. Incubation time had a significant effect on IL-10 and TNF-α gene expression, which decreased over time. Regarding to H. lineatum antigens, the crude larval extract and the purified fraction hypodermin B (HB) produced a significant reduction of the mRNA expression levels of the proinflammatory cytokine, IFN-γ; moreover, the HB had a stimulating effect on the mRNA gene expression of the anti-inflammatory cytokine IL-10, demonstrating that the parasite would modulate the host defence mechanisms by avoiding harmful immune responses that would limit its survival into the host tissues.
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Reverberi S, Kohn N, Fernández G. No evidence for an effect of explicit relevance instruction on consolidation of associative memories. Neuropsychologia 2020; 143:107491. [PMID: 32422141 DOI: 10.1016/j.neuropsychologia.2020.107491] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 04/23/2020] [Accepted: 05/05/2020] [Indexed: 12/24/2022]
Abstract
Newly encoded memories are stabilized over time through a process or a set of processes termed consolidation, which happens preferentially during sleep. However, not all memories profit equally from this offline stabilization. Previous research suggested that one factor, which determines whether a memory will benefit from sleep consolidation, is future relevance. The aim of our current study was to replicate these findings and expand them to investigate their neural underpinnings. In our experiment, 38 participants learned two sets of object-location associations. The two sets of stimuli were presented to each participant intermixed and in random order. After study, participants performed a baseline retention test and were thereafter instructed that, after a delay containing sleep, they would be tested and rewarded only on one of the two sets of stimuli. This relevance instruction was revoked, however, immediately before the test. Thus, this manipulation affected memory consolidation while having no influence on encoding and retrieval. This retention interval was monitored via actigraphy recordings. While the study session was purely behavioral, the test session was conducted in an MRI scanner, thus we collected neuroimaging data at retrieval of relevant compared with non-relevant items. Behaviorally, we found no effect of the relevance manipulation on memory retention, confidence rating, or reaction time. At a neural level, no effect of relevance on memory retrieval-related brain operations was observed. Contrary to our expectations, the relevance manipulation did not result in improved consolidation, nor in improved subsequent performance at retrieval. These findings challenge previously published results and suggest that future relevance as manipulated here may not be sufficient to produce enhanced memory consolidation.
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Przeździk I, Faber M, Fernández G, Beckmann CF, Haak KV. Gradient mapping in the human hippocampus: Reply to Poppenk. Cortex 2020; 128:318-321. [PMID: 32402493 DOI: 10.1016/j.cortex.2020.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 04/05/2020] [Indexed: 11/27/2022]
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Duan H, Fernández G, van Dongen E, Kohn N. The effect of intrinsic and extrinsic motivation on memory formation: insight from behavioral and imaging study. Brain Struct Funct 2020; 225:1561-1574. [PMID: 32350643 PMCID: PMC7286947 DOI: 10.1007/s00429-020-02074-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 04/18/2020] [Indexed: 01/20/2023]
Abstract
Motivation can be generated intrinsically or extrinsically, and both kinds of motivation show similar facilitatory effects on memory. However, effects of extrinsic and intrinsic motivation on memory formation have not been studied in combination and thus, it is unknown whether they interact and how such interplay is neurally implemented. In the present study, both extrinsic monetary reward and intrinsic curiosity enhanced memory performance, without evidence for an interaction. Functional magnetic resonance imaging revealed that curiosity-driven activity in the ventral striatal reward network appears to work cooperatively with the fronto-parietal attention network, while enhancing memory formation. In contrast, the monetary reward-modulated subsequent memory effect revealed deactivation in parietal midline regions. Thus, curiosity might enhance memory performance by allocation of attentional resources and reward-related processes; while, monetary reward does so by suppression of task-irrelevant processing.
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Everaerd DS, Henckens MJAG, Bloemendaal M, Bovy L, Kaldewaij R, Maas FMWM, Mulders PCR, Niermann HCM, van de Pavert I, Przezdzik I, Fernández G, Klumpers F, de Voogd LD. Good vibrations: An observational study of real-life stress induced by a stage performance. Psychoneuroendocrinology 2020; 114:104593. [PMID: 32014640 DOI: 10.1016/j.psyneuen.2020.104593] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 01/21/2020] [Accepted: 01/22/2020] [Indexed: 10/25/2022]
Abstract
Stressors induce physiological changes in the brain and periphery that support adaptive defensive responses. The consequences of psychological stress on cognitive functioning are often measured in laboratory settings using experimentally induced stress that leads to mainly negative subjective feelings. There is a need for verification of these studies using real-life stressors that may potentially induce both positive and negative subjective feelings. In an observational study, we investigated real-life stress induced by voluntary stage performance at a large-scale music festival, including 126 participants (60 female, age range = 16-57 years). Our primary measurements involved salivary cortisol, heart rate, blood pressure, and positive and negative affect. In addition, participants completed a 2-back working memory task and a speeded decision-making task. We found that stage performance significantly increased salivary cortisol - with a particularly low number of cortisol non-responders - and heart rate, even when controlling for potential confounding factors, such as sleep, movement, and alcohol use. Interestingly, stage performance significantly decreased negative affect while increasing positive affect. This positively experienced stressor ("eustressor") was related to impaired working memory performance: the stronger the increases in cortisol, the slower participants responded to targets. Decision-making, however, was not affected. In conclusion, we show how stressful experiences in real-life can lead to positive affect, but still have a similar negative impact on cognitive functioning. We suggest that future research should focus more on the consequences of real-life stressors, and the consequences of eustress, in order to extend our understanding of the concept of psychological stress.
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Müller N, Dresler M, Janzen G, Beckmann C, Fernández G, Kohn N. Medial prefrontal decoupling from the default mode network benefits memory. Neuroimage 2020; 210:116543. [DOI: 10.1016/j.neuroimage.2020.116543] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 01/07/2020] [Accepted: 01/10/2020] [Indexed: 01/14/2023] Open
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Grasby KL, Jahanshad N, Painter JN, Colodro-Conde L, Bralten J, Hibar DP, Lind PA, Pizzagalli F, Ching CRK, McMahon MAB, Shatokhina N, Zsembik LCP, Thomopoulos SI, Zhu AH, Strike LT, Agartz I, Alhusaini S, Almeida MAA, Alnæs D, Amlien IK, Andersson M, Ard T, Armstrong NJ, Ashley-Koch A, Atkins JR, Bernard M, Brouwer RM, Buimer EEL, Bülow R, Bürger C, Cannon DM, Chakravarty M, Chen Q, Cheung JW, Couvy-Duchesne B, Dale AM, Dalvie S, de Araujo TK, de Zubicaray GI, de Zwarte SMC, den Braber A, Doan NT, Dohm K, Ehrlich S, Engelbrecht HR, Erk S, Fan CC, Fedko IO, Foley SF, Ford JM, Fukunaga M, Garrett ME, Ge T, Giddaluru S, Goldman AL, Green MJ, Groenewold NA, Grotegerd D, Gurholt TP, Gutman BA, Hansell NK, Harris MA, Harrison MB, Haswell CC, Hauser M, Herms S, Heslenfeld DJ, Ho NF, Hoehn D, Hoffmann P, Holleran L, Hoogman M, Hottenga JJ, Ikeda M, Janowitz D, Jansen IE, Jia T, Jockwitz C, Kanai R, Karama S, Kasperaviciute D, Kaufmann T, Kelly S, Kikuchi M, Klein M, Knapp M, Knodt AR, Krämer B, Lam M, Lancaster TM, Lee PH, Lett TA, Lewis LB, Lopes-Cendes I, Luciano M, Macciardi F, Marquand AF, Mathias SR, Melzer TR, Milaneschi Y, Mirza-Schreiber N, Moreira JCV, Mühleisen TW, Müller-Myhsok B, Najt P, Nakahara S, Nho K, Loohuis LMO, Orfanos DP, Pearson JF, Pitcher TL, Pütz B, Quidé Y, Ragothaman A, Rashid FM, Reay WR, Redlich R, Reinbold CS, Repple J, Richard G, Riede BC, Risacher SL, Rocha CS, Mota NR, Salminen L, Saremi A, Saykin AJ, Schlag F, Schmaal L, Schofield PR, Secolin R, Shapland CY, Shen L, Shin J, Shumskaya E, Sønderby IE, Sprooten E, Tansey KE, Teumer A, Thalamuthu A, Tordesillas-Gutiérrez D, Turner JA, Uhlmann A, Vallerga CL, van derMeer D, van Donkelaar MMJ, van Eijk L, van Erp TGM, van Haren NEM, van Rooij D, van Tol MJ, Veldink JH, Verhoef E, Walton E, Wang M, Wang Y, Wardlaw JM, Wen W, Westlye LT, Whelan CD, Witt SH, Wittfeld K, Wolf C, Wolfers T, Wu JQ, Yasuda CL, Zaremba D, Zhang Z, Zwiers MP, Artiges E, Assareh AA, Ayesa-Arriola R, Belger A, Brandt CL, Brown GG, Cichon S, Curran JE, Davies GE, Degenhardt F, Dennis MF, Dietsche B, Djurovic S, Doherty CP, Espiritu R, Garijo D, Gil Y, Gowland PA, Green RC, Häusler AN, Heindel W, Ho BC, Hoffmann WU, Holsboer F, Homuth G, Hosten N, Jack CR, Jang M, Jansen A, Kimbrel NA, Kolskår K, Koops S, Krug A, Lim KO, Luykx JJ, Mathalon DH, Mather KA, Mattay VS, Matthews S, Van Son JM, McEwen SC, Melle I, Morris DW, Mueller BA, Nauck M, Nordvik JE, Nöthen MM, O’Leary DS, Opel N, Martinot MLP, Pike GB, Preda A, Quinlan EB, Rasser PE, Ratnakar V, Reppermund S, Steen VM, Tooney PA, Torres FR, Veltman DJ, Voyvodic JT, Whelan R, White T, Yamamori H, Adams HHH, Bis JC, Debette S, Decarli C, Fornage M, Gudnason V, Hofer E, Ikram MA, Launer L, Longstreth WT, Lopez OL, Mazoyer B, Mosley TH, Roshchupkin GV, Satizabal CL, Schmidt R, Seshadri S, Yang Q, Alvim MKM, Ames D, Anderson TJ, Andreassen OA, Arias-Vasquez A, Bastin ME, Baune BT, Beckham JC, Blangero J, Boomsma DI, Brodaty H, Brunner HG, Buckner RL, Buitelaar JK, Bustillo JR, Cahn W, Cairns MJ, Calhoun V, Carr VJ, Caseras X, Caspers S, Cavalleri GL, Cendes F, Corvin A, Crespo-Facorro B, Dalrymple-Alford JC, Dannlowski U, de Geus EJC, Deary IJ, Delanty N, Depondt C, Desrivières S, Donohoe G, Espeseth T, Fernández G, Fisher SE, Flor H, Forstner AJ, Francks C, Franke B, Glahn DC, Gollub RL, Grabe HJ, Gruber O, Håberg AK, Hariri AR, Hartman CA, Hashimoto R, Heinz A, Henskens FA, Hillegers MHJ, Hoekstra PJ, Holmes AJ, Hong LE, Hopkins WD, Pol HEH, Jernigan TL, Jönsson EG, Kahn RS, Kennedy MA, Kircher TTJ, Kochunov P, Kwok JBJ, Le Hellard S, Loughland CM, Martin NG, Martinot JL, McDonald C, McMahon KL, Meyer-Lindenberg A, Michie PT, Morey RA, Mowry B, Nyberg L, Oosterlaan J, Ophoff RA, Pantelis C, Paus T, Pausova Z, Penninx BWJH, Polderman TJC, Posthuma D, Rietschel M, Roffman JL, Rowland LM, Sachdev PS, Sämann PG, Schall U, Schumann G, Scott RJ, Sim K, Sisodiya SM, Smoller JW, Sommer IE, St Pourcain B, Stein DJ, Toga AW, Trollor JN, Van der Wee NJA, van ‘t Ent D, Völzke H, Walter H, Weber B, Weinberger DR, Wright MJ, Zhou J, Stein JL, Thompson PM, Medland SE. The genetic architecture of the human cerebral cortex. Science 2020; 367:eaay6690. [PMID: 32193296 PMCID: PMC7295264 DOI: 10.1126/science.aay6690] [Citation(s) in RCA: 350] [Impact Index Per Article: 87.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 02/10/2020] [Indexed: 12/15/2022]
Abstract
The cerebral cortex underlies our complex cognitive capabilities, yet little is known about the specific genetic loci that influence human cortical structure. To identify genetic variants that affect cortical structure, we conducted a genome-wide association meta-analysis of brain magnetic resonance imaging data from 51,665 individuals. We analyzed the surface area and average thickness of the whole cortex and 34 regions with known functional specializations. We identified 199 significant loci and found significant enrichment for loci influencing total surface area within regulatory elements that are active during prenatal cortical development, supporting the radial unit hypothesis. Loci that affect regional surface area cluster near genes in Wnt signaling pathways, which influence progenitor expansion and areal identity. Variation in cortical structure is genetically correlated with cognitive function, Parkinson's disease, insomnia, depression, neuroticism, and attention deficit hyperactivity disorder.
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Panadero R, López CM, Remesar S, Cabanelas E, Varas G, Markina F, Díaz P, García-Dios D, Prieto A, Fernández G, Díez-Baños P, Morrondo P. Temporal and spatial spread of Hypoderma actaeon infection in roe deer from peninsular Spain determined by an indirect enzyme-linked immunosorbent assay. MEDICAL AND VETERINARY ENTOMOLOGY 2020; 34:44-48. [PMID: 31444796 DOI: 10.1111/mve.12404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 08/05/2019] [Accepted: 08/06/2019] [Indexed: 06/10/2023]
Abstract
The host switching of Hypoderma actaeon (Diptera: Oestridae), a specific parasite of red deer (Cervus elaphus), towards roe deer (Capreolus capreolus) has been recently reported in Spain. To provide information about the temporal and spatial spreading of H. actaeon infection in roe deer, 244 serum samples from animals hunted in Spain between 2013 and 2018 were analysed by an indirect enzyme-linked immunosorbent assay. The overall seropositivity was 13.9%. Seropositivity was higher in continental (27.7%) and mountainous (12%) areas from central Spain, followed by southern-Mediterranean (11.2%) and northern-oceanic regions (3.5%). Differences were significant between central-continental and northern-oceanic regions (P = 0.003). No differences were found according to the sex and age of roe deer (P > 0.05). In 2013, all seropositive animals were concentrated in two distant areas in central and southern Spain, suggesting that the host switch could have occurred independently in both regions. Changes in the pattern of distribution of red deer and roe deer could have favoured the spreading of this myiasis towards roe deer, indicating that roe deer may become infested by H. actaeon in areas where both cervids coexist at high densities.
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Bovy L, Berkers RMWJ, Pottkämper JCM, Varatheeswaran R, Fernández G, Tendolkar I, Dresler M. Transcranial Magnetic Stimulation of the Medial Prefrontal Cortex Decreases Emotional Memory Schemas. Cereb Cortex 2020; 30:3608-3616. [PMID: 31925421 PMCID: PMC7232999 DOI: 10.1093/cercor/bhz329] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 11/12/2019] [Accepted: 12/11/2019] [Indexed: 11/13/2022] Open
Abstract
Mood-congruent memory bias is a critical characteristic of depression, but the underlying neural mechanism is largely unknown. Negative memory schemas might enhance encoding and consolidation of negative experiences, thereby contributing to the genesis and perpetuation of depressive pathology. To investigate this relationship, we aimed to perturb medial prefrontal cortex (mPFC) processing, using neuronavigated transcranial magnetic stimulation (TMS) targeting the mPFC. Forty healthy volunteers first underwent a negative mood induction to activate negative schema processing after which they received either active inhibitory (N = 20) or control (N = 20) stimulation to the mPFC. Then, all participants performed the encoding of an emotional false memory task. Recall and recognition performance was tested the following morning. Polysomnographic data were recorded continuously during the night before and after encoding. We observed a significantly lower false recognition of negative critical lures following mPFC inhibition, but no differences in veridical memory. These findings were supported by reaction time data, showing a relative slower response to negative compared with positive critical lures. The current findings support previous causal evidence for a role of the mPFC in schema memory processing and further suggest a role of the mPFC in memory bias.
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van der Meer D, Rokicki J, Kaufmann T, Córdova-Palomera A, Moberget T, Alnæs D, Bettella F, Frei O, Doan NT, Sønderby IE, Smeland OB, Agartz I, Bertolino A, Bralten J, Brandt CL, Buitelaar JK, Djurovic S, van Donkelaar M, Dørum ES, Espeseth T, Faraone SV, Fernández G, Fisher SE, Franke B, Haatveit B, Hartman CA, Hoekstra PJ, Håberg AK, Jönsson EG, Kolskår KK, Le Hellard S, Lund MJ, Lundervold AJ, Lundervold A, Melle I, Monereo Sánchez J, Norbom LC, Nordvik JE, Nyberg L, Oosterlaan J, Papalino M, Papassotiropoulos A, Pergola G, de Quervain DJF, Richard G, Sanders AM, Selvaggi P, Shumskaya E, Steen VM, Tønnesen S, Ulrichsen KM, Zwiers MP, Andreassen OA, Westlye LT. Brain scans from 21,297 individuals reveal the genetic architecture of hippocampal subfield volumes. Mol Psychiatry 2020; 25:3053-3065. [PMID: 30279459 PMCID: PMC6445783 DOI: 10.1038/s41380-018-0262-7] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 08/09/2018] [Accepted: 09/06/2018] [Indexed: 11/09/2022]
Abstract
The hippocampus is a heterogeneous structure, comprising histologically distinguishable subfields. These subfields are differentially involved in memory consolidation, spatial navigation and pattern separation, complex functions often impaired in individuals with brain disorders characterized by reduced hippocampal volume, including Alzheimer's disease (AD) and schizophrenia. Given the structural and functional heterogeneity of the hippocampal formation, we sought to characterize the subfields' genetic architecture. T1-weighted brain scans (n = 21,297, 16 cohorts) were processed with the hippocampal subfields algorithm in FreeSurfer v6.0. We ran a genome-wide association analysis on each subfield, co-varying for whole hippocampal volume. We further calculated the single-nucleotide polymorphism (SNP)-based heritability of 12 subfields, as well as their genetic correlation with each other, with other structural brain features and with AD and schizophrenia. All outcome measures were corrected for age, sex and intracranial volume. We found 15 unique genome-wide significant loci across six subfields, of which eight had not been previously linked to the hippocampus. Top SNPs were mapped to genes associated with neuronal differentiation, locomotor behaviour, schizophrenia and AD. The volumes of all the subfields were estimated to be heritable (h2 from 0.14 to 0.27, all p < 1 × 10-16) and clustered together based on their genetic correlations compared with other structural brain features. There was also evidence of genetic overlap of subicular subfield volumes with schizophrenia. We conclude that hippocampal subfields have partly distinct genetic determinants associated with specific biological processes and traits. Taking into account this specificity may increase our understanding of hippocampal neurobiology and associated pathologies.
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Satizabal CL, Adams HHH, Hibar DP, White CC, Knol MJ, Stein JL, Scholz M, Sargurupremraj M, Jahanshad N, Roshchupkin GV, Smith AV, Bis JC, Jian X, Luciano M, Hofer E, Teumer A, van der Lee SJ, Yang J, Yanek LR, Lee TV, Li S, Hu Y, Koh JY, Eicher JD, Desrivières S, Arias-Vasquez A, Chauhan G, Athanasiu L, Rentería ME, Kim S, Hoehn D, Armstrong NJ, Chen Q, Holmes AJ, den Braber A, Kloszewska I, Andersson M, Espeseth T, Grimm O, Abramovic L, Alhusaini S, Milaneschi Y, Papmeyer M, Axelsson T, Ehrlich S, Roiz-Santiañez R, Kraemer B, Håberg AK, Jones HJ, Pike GB, Stein DJ, Stevens A, Bralten J, Vernooij MW, Harris TB, Filippi I, Witte AV, Guadalupe T, Wittfeld K, Mosley TH, Becker JT, Doan NT, Hagenaars SP, Saba Y, Cuellar-Partida G, Amin N, Hilal S, Nho K, Mirza-Schreiber N, Arfanakis K, Becker DM, Ames D, Goldman AL, Lee PH, Boomsma DI, Lovestone S, Giddaluru S, Le Hellard S, Mattheisen M, Bohlken MM, Kasperaviciute D, Schmaal L, Lawrie SM, Agartz I, Walton E, Tordesillas-Gutierrez D, Davies GE, Shin J, Ipser JC, Vinke LN, Hoogman M, Jia T, Burkhardt R, Klein M, Crivello F, Janowitz D, Carmichael O, Haukvik UK, Aribisala BS, Schmidt H, Strike LT, Cheng CY, Risacher SL, Pütz B, Fleischman DA, Assareh AA, Mattay VS, Buckner RL, Mecocci P, Dale AM, Cichon S, Boks MP, Matarin M, Penninx BWJH, Calhoun VD, Chakravarty MM, Marquand AF, Macare C, Kharabian Masouleh S, Oosterlaan J, Amouyel P, Hegenscheid K, Rotter JI, Schork AJ, Liewald DCM, de Zubicaray GI, Wong TY, Shen L, Sämann PG, Brodaty H, Roffman JL, de Geus EJC, Tsolaki M, Erk S, van Eijk KR, Cavalleri GL, van der Wee NJA, McIntosh AM, Gollub RL, Bulayeva KB, Bernard M, Richards JS, Himali JJ, Loeffler M, Rommelse N, Hoffmann W, Westlye LT, Valdés Hernández MC, Hansell NK, van Erp TGM, Wolf C, Kwok JBJ, Vellas B, Heinz A, Olde Loohuis LM, Delanty N, Ho BC, Ching CRK, Shumskaya E, Singh B, Hofman A, van der Meer D, Homuth G, Psaty BM, Bastin ME, Montgomery GW, Foroud TM, Reppermund S, Hottenga JJ, Simmons A, Meyer-Lindenberg A, Cahn W, Whelan CD, van Donkelaar MMJ, Yang Q, Hosten N, Green RC, Thalamuthu A, Mohnke S, Hulshoff Pol HE, Lin H, Jack CR, Schofield PR, Mühleisen TW, Maillard P, Potkin SG, Wen W, Fletcher E, Toga AW, Gruber O, Huentelman M, Davey Smith G, Launer LJ, Nyberg L, Jönsson EG, Crespo-Facorro B, Koen N, Greve DN, Uitterlinden AG, Weinberger DR, Steen VM, Fedko IO, Groenewold NA, Niessen WJ, Toro R, Tzourio C, Longstreth WT, Ikram MK, Smoller JW, van Tol MJ, Sussmann JE, Paus T, Lemaître H, Schroeter ML, Mazoyer B, Andreassen OA, Holsboer F, Depondt C, Veltman DJ, Turner JA, Pausova Z, Schumann G, van Rooij D, Djurovic S, Deary IJ, McMahon KL, Müller-Myhsok B, Brouwer RM, Soininen H, Pandolfo M, Wassink TH, Cheung JW, Wolfers T, Martinot JL, Zwiers MP, Nauck M, Melle I, Martin NG, Kanai R, Westman E, Kahn RS, Sisodiya SM, White T, Saremi A, van Bokhoven H, Brunner HG, Völzke H, Wright MJ, van 't Ent D, Nöthen MM, Ophoff RA, Buitelaar JK, Fernández G, Sachdev PS, Rietschel M, van Haren NEM, Fisher SE, Beiser AS, Francks C, Saykin AJ, Mather KA, Romanczuk-Seiferth N, Hartman CA, DeStefano AL, Heslenfeld DJ, Weiner MW, Walter H, Hoekstra PJ, Nyquist PA, Franke B, Bennett DA, Grabe HJ, Johnson AD, Chen C, van Duijn CM, Lopez OL, Fornage M, Wardlaw JM, Schmidt R, DeCarli C, De Jager PL, Villringer A, Debette S, Gudnason V, Medland SE, Shulman JM, Thompson PM, Seshadri S, Ikram MA. Genetic architecture of subcortical brain structures in 38,851 individuals. Nat Genet 2019; 51:1624-1636. [PMID: 31636452 PMCID: PMC7055269 DOI: 10.1038/s41588-019-0511-y] [Citation(s) in RCA: 152] [Impact Index Per Article: 30.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 09/05/2019] [Indexed: 12/15/2022]
Abstract
Subcortical brain structures are integral to motion, consciousness, emotions and learning. We identified common genetic variation related to the volumes of the nucleus accumbens, amygdala, brainstem, caudate nucleus, globus pallidus, putamen and thalamus, using genome-wide association analyses in almost 40,000 individuals from CHARGE, ENIGMA and UK Biobank. We show that variability in subcortical volumes is heritable, and identify 48 significantly associated loci (40 novel at the time of analysis). Annotation of these loci by utilizing gene expression, methylation and neuropathological data identified 199 genes putatively implicated in neurodevelopment, synaptic signaling, axonal transport, apoptosis, inflammation/infection and susceptibility to neurological disorders. This set of genes is significantly enriched for Drosophila orthologs associated with neurodevelopmental phenotypes, suggesting evolutionarily conserved mechanisms. Our findings uncover novel biology and potential drug targets underlying brain development and disease.
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Przeździk I, Faber M, Fernández G, Beckmann CF, Haak KV. The functional organisation of the hippocampus along its long axis is gradual and predicts recollection. Cortex 2019; 119:324-335. [DOI: 10.1016/j.cortex.2019.04.015] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 02/01/2019] [Accepted: 04/15/2019] [Indexed: 01/08/2023]
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Díaz P, Remesar S, Venzal JM, Vázquez-López ME, Fernández G, López C, Díez-Baños P, Morrondo P, Panadero R. Occurrence of Borrelia and Borreliella species in Ixodes ricinus collected from roe deer in northwestern Spain. MEDICAL AND VETERINARY ENTOMOLOGY 2019; 33:427-430. [PMID: 30730054 DOI: 10.1111/mve.12364] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 12/11/2018] [Accepted: 12/19/2018] [Indexed: 06/09/2023]
Abstract
Ixodes ricinus, comprising the predominant tick species in Europe, can transmit important human pathogens, including Borreliella spp., the causal agent of Lyme borreliosis. One hundred and seventy five roe deer hunted in two areas (plateau and mountain) of Galicia (northwest Spain) were examined for the presence of ticks; all roe deer were infested by I. ricinus. Nymphs (n = 1000), males (n = 1449) and females (n = 1000) of I. ricinus were analysed in pools of up to 10 ticks to detect both Borreliella and Borrelia DNA. The average number of I. ricinus per roe deer was similar in both areas, regardless of the life stage; although the percentage of Borreliella and Borrelia positive pools was higher in ticks collected from roe deer hunted in the plateau area, no significant differences were detected. Sequence analysis at the flagellin gene allowed the identification of four Borreliella species (Borreliella afzelii, Borreliella garinii, Borreliella lusitaniae and Borreliella valaisiana) and Borrelia miyamotoi in adult males; only B. valaisiana and B. miyamotoi were detected in nymphs and all females were negative. All Borreliella and Borrelia species found in roe deer were previously identified in questing I. ricinus collected in the same study area, although the prevalence was lower in the present study. The analysis of male I. ricinus ticks collected from roe deer gives a good estimation of Borreliella diversity in questing ticks.
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Wagner IC, van Buuren M, Fernández G. Thalamo-cortical coupling during encoding and consolidation is linked to durable memory formation. Neuroimage 2019; 197:80-92. [DOI: 10.1016/j.neuroimage.2019.04.055] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 04/19/2019] [Indexed: 01/08/2023] Open
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Díaz JM, Prieto A, López G, Díaz P, López C, Quintela LÁ, Morrondo P, Fernández G. Association of Ureaplasma diversum with reproductive disease in cattle. N Z Vet J 2019; 67:249-256. [PMID: 31131738 DOI: 10.1080/00480169.2019.1623733] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Aims: To examine the association between the detection of Ureaplasma diversum in vaginal swabs from dairy cows in north western Spain with the diagnosis of granular vulvovaginitis (GVV) and reproductive performance, and the association with subclinical endometritis (SE) in slaughterhouse material. The presence of this microorganism in cases of abortion was also investigated. Methods: From 106 dairy farms in the province of Lugo, 40 herds were randomly selected. Vaginal swabs were obtained from 10 randomly selected cows per farm, then pooled for analysis to detect the presence of U. diversum by quantitative real-time PCR (qPCR). In five of these herds samples from the 10 animals were individually tested for U. diversum, and the presence of GVV lesions and their reproductive efficiency (number of inseminations to achieve pregnancy over two subsequent pregnancies) were determined. Vaginal swabs from uteri of cattle obtained at a slaughterhouse (n = 100) were tested for U. diversum and the presence of SE, defined as >5% polymorphonuclear cells in cytobrush smears, was determined. Sixteen farms with abortion problems submitted samples for culture and PCR testing including for U. diversum. Results: Of the 40 herds, 39 (98%) tested positive for U. diversum. On the five farms, 25/50 (50%) cows tested positive for U. diversum, and more cows with GGV-lesions (16/25; 64%) tested positive than cows without lesions (9/25; 36%) (p = 0.047). There were more cows with poor reproductive efficacy that tested positive (8/11; 57%) than tested negative (3/17; 18%) for U. diversum (p = 0.029). Of the 100 uteri, five tested positive for U. diversum and there were more uteri with SE that tested positive (3/19; 16%) than uteri without SE (2/81; 2%) (p = 0.036). U. diversum was also diagnosed in 4/16 farms with abortion problems and liver appeared to be the best tissue for detecting U. diversum DNA in the fetuses analysed. Conclusions and Clinical Relevance: Infection with U. diversum was present in most of herds investigated and it was statistically associated with GVV, SE and poor reproductive performance. It was also detected in abortions and the liver may also be an additional tissue to be considered in the diagnosis of U. diversum abortion by PCR. The possible association with different diseases in the same area suggests that different presentations should be considered when studying the implications of U. diversum on the reproductive diseases of cattle.
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Cousins JN, Fernández G. The impact of sleep deprivation on declarative memory. PROGRESS IN BRAIN RESEARCH 2019; 246:27-53. [PMID: 31072562 DOI: 10.1016/bs.pbr.2019.01.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Sleep plays a crucial role in memory stabilization and integration, yet many people obtain insufficient sleep. This review assesses what is known about the level of sleep deprivation that leads to impairments during encoding, consolidation and retrieval of declarative memories, and what can be determined about the underlying neurophysiological processes. Neuroimaging studies that deprived sleep after learning have provided some of the most compelling evidence for sleep's role in the long-term reorganization of memories in the brain (systems consolidation). However, the behavioral consequences of losing sleep after learning-shown by increased forgetting-appear to recover over time and are unaffected by more common forms of partial sleep restriction across several nights. The capacity to encode new memories is the most vulnerable to sleep loss, since long-term deficits have been observed after total and partial sleep deprivation, while retrieval mechanisms are relatively unaffected. The negative impact of sleep loss on memory has been explored extensively after a night of total sleep deprivation, but further research is needed on the consequences of partial sleep loss over many days so that impairments may be generalized to more common forms of sleep loss.
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Gunz P, Tilot AK, Wittfeld K, Teumer A, Shapland CY, van Erp TGM, Dannemann M, Vernot B, Neubauer S, Guadalupe T, Fernández G, Brunner HG, Enard W, Fallon J, Hosten N, Völker U, Profico A, Di Vincenzo F, Manzi G, Kelso J, St Pourcain B, Hublin JJ, Franke B, Pääbo S, Macciardi F, Grabe HJ, Fisher SE. Neandertal Introgression Sheds Light on Modern Human Endocranial Globularity. Curr Biol 2019; 29:895. [PMID: 30836076 DOI: 10.1016/j.cub.2019.02.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Galarza Vallejo A, Kroes MCW, Rey E, Acedo MV, Moratti S, Fernández G, Strange BA. Propofol-induced deep sedation reduces emotional episodic memory reconsolidation in humans. SCIENCE ADVANCES 2019; 5:eaav3801. [PMID: 30906867 PMCID: PMC6426467 DOI: 10.1126/sciadv.aav3801] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 01/31/2019] [Indexed: 05/29/2023]
Abstract
The adjustment of maladaptive thoughts and behaviors associated with emotional memories is central to treating psychiatric disorders. Recent research, predominantly with laboratory animals, indicates that memories can become temporarily sensitive to modification following reactivation, before undergoing reconsolidation. A method to selectively impair reconsolidation of specific emotional or traumatic memories in humans could translate to an effective treatment for conditions such as posttraumatic stress disorder. We tested whether deep sedation could impair emotional memory reconsolidation in 50 human participants. Administering the intravenous anesthetic propofol following memory reactivation disrupted memory for the reactivated, but not for a non-reactivated, slideshow story. Propofol impaired memory for the reactivated story after 24 hours, but not immediately after propofol recovery. Critically, memory impairment occurred selectively for the emotionally negative phase of the reactivated story. One dose of propofol following memory reactivation selectively impaired subsequent emotional episodic memory retrieval in a time-dependent manner, consistent with reconsolidation impairment.
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van Buuren M, Wagner IC, Fernández G. Functional network interactions at rest underlie individual differences in memory ability. ACTA ACUST UNITED AC 2018; 26:9-19. [PMID: 30559115 PMCID: PMC6298542 DOI: 10.1101/lm.048199.118] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 11/17/2018] [Indexed: 11/24/2022]
Abstract
Intrinsic network interactions may underlie individual differences in the ability to remember. The default mode network (DMN) comprises subnetworks implicated in memory, and interactions between the DMN and frontoparietal network (FPN) were shown to support mnemonic processing. However, it is unclear if such interactions during resting-state predict episodic memory ability. We investigated whether intrinsic network interactions within and between the DMN and FPN are related to individual differences in memory performance. Resting-state activity was measured using functional MRI in healthy young adults followed by a memory test for object–location associations that were studied 3 d earlier. We identified two subnetworks within the DMN, the main-DMN and the medial temporal lobe, retrosplenial cortex (MTL_RSC)-DMN. Further, we found regions forming the FPN. Memory performance was associated with lower connectivity within the MTL_RSC-DMN, and stronger connectivity between the main-DMN and FPN. Exploratory whole-brain analysis revealed stronger MTL connectivity with the left posterior parietal cortex that was related to better memory performance. Furthermore, we found increased task-evoked activation during successful retrieval within the main-DMN and FPN, but not within the MTL_RSC-DMN. In sum, lower intrinsic connectivity within the MTL_RSC-DMN, combined with stronger connectivity between the main-DMN and FPN, explain individual differences in memory ability.
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Gunz P, Tilot AK, Wittfeld K, Teumer A, Shapland CY, van Erp TGM, Dannemann M, Vernot B, Neubauer S, Guadalupe T, Fernández G, Brunner HG, Enard W, Fallon J, Hosten N, Völker U, Profico A, Di Vincenzo F, Manzi G, Kelso J, St Pourcain B, Hublin JJ, Franke B, Pääbo S, Macciardi F, Grabe HJ, Fisher SE. Neandertal Introgression Sheds Light on Modern Human Endocranial Globularity. Curr Biol 2018; 29:120-127.e5. [PMID: 30554901 PMCID: PMC6380688 DOI: 10.1016/j.cub.2018.10.065] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 09/21/2018] [Accepted: 10/31/2018] [Indexed: 12/15/2022]
Abstract
One of the features that distinguishes modern humans from our extinct relatives and ancestors is a globular shape of the braincase [1-4]. As the endocranium closely mirrors the outer shape of the brain, these differences might reflect altered neural architecture [4, 5]. However, in the absence of fossil brain tissue, the underlying neuroanatomical changes as well as their genetic bases remain elusive. To better understand the biological foundations of modern human endocranial shape, we turn to our closest extinct relatives: the Neandertals. Interbreeding between modern humans and Neandertals has resulted in introgressed fragments of Neandertal DNA in the genomes of present-day non-Africans [6, 7]. Based on shape analyses of fossil skull endocasts, we derive a measure of endocranial globularity from structural MRI scans of thousands of modern humans and study the effects of introgressed fragments of Neandertal DNA on this phenotype. We find that Neandertal alleles on chromosomes 1 and 18 are associated with reduced endocranial globularity. These alleles influence expression of two nearby genes, UBR4 and PHLPP1, which are involved in neurogenesis and myelination, respectively. Our findings show how integration of fossil skull data with archaic genomics and neuroimaging can suggest developmental mechanisms that may contribute to the unique modern human endocranial shape.
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Martínez-González MA, Buil-Cosiales P, Corella D, Bulló M, Fitó M, Vioque J, Romaguera D, Martínez JA, Wärnberg J, López-Miranda J, Estruch R, Bueno-Cavanillas A, Arós F, Tur JA, Tinahones F, Serra-Majem L, Martín V, Lapetra J, Vázquez C, Pintó X, Vidal J, Daimiel L, Delgado-Rodríguez M, Matía P, Ros E, Fernández-Aranda F, Botella C, Portillo MP, Lamuela-Raventós RM, Marcos A, Sáez G, Gómez-Gracia E, Ruiz-Canela M, Toledo E, Alvarez-Alvarez I, Díez-Espino J, Sorlí JV, Basora J, Castañer O, Schröder H, Navarrete-Muñoz EM, Zulet MA, García-Rios A, Salas-Salvadó J, Corella D, Estruch R, Fitó M, Martínez-González MA, Ros E, Salas-Salvadó J, Babio N, Ros E, Sánchez-Tainta A, Martínez-González MA, Fitó M, Schröder H, Marcos A, Corella D, Wärnberg J, Martínez-González MA, Estruch R, Fernández-Aranda F, Botella C, Salas-Salvadó J, Razquin C, Bes-Rastrollo M, Sanchez Tainta A, Vázquez Z, SanJulian Aranguren B, Goñi E, Goñi L, Barrientos I, Canales M, Sayón-Orea MC, Rico A, Basterra Gortari J, Garcia Arellano A, Lecea-Juarez O, Carlos Cenoz-Osinaga J, Bartolome-Resano J, Sola-Larraza† A, Lozano-Oloriz E, Cano-Valles B, Eguaras S, Güeto V, Pascual Roquet-Jalmar E, Galilea-Zabalza I, Lancova H, Ramallal R, Garcia-Perez ML, Estremera-Urabayen V, Ariz-Arnedo MJ, Hijos-Larraz C, Fernandez Alfaro C, Iñigo-Martinez B, Villanueva Moreno R, Martin-Almendros S, Barandiaran-Bengoetxea L, Fuertes-Goñi C, Lezaun-Indurain A, Guruchaga-Arcelus MJ, Olmedo-Cruz O, Iñigo-Martínez B, Escriche-Erviti L, Ansorena-Ros R, Sanmatin-Zabaleta R, Apalategi-Lasa J, Villanueva-Telleria J, Hernández-Espinosa MM, Arroyo-Bergera I, Herrera-Valdez L, Dorronsoro-Dorronsoro L, González JI, Sorlí JV, Portolés O, Fernández-Carrión R, Ortega-Azorín C, Barragán R, Asensio EM, Coltell O, Sáiz C, Osma R, Férriz E, González-Monje I, Giménez-Fernández F, Quiles L, Carrasco P, San Onofre N, Carratalá-Calvo A, Valero-Barceló C, Antón F, Mir C, Sánchez-Navarro S, Navas J, González-Gallego I, Bort-Llorca L, Pérez-Ollero L, Giner-Valero M, Monfort-Sáez R, Nadal-Sayol J, Pascual-Fuster V, Martínez-Pérez M, Riera C, Belda MV, Medina A, Miralles E, Ramírez-Esplugues MJ, Rojo-Furió M, Mattingley G, Delgado MA, Pages MA, Riofrío Y, Abuomar L, Blasco-Lafarga N, Tosca R, Lizán L, Guillem-Saiz P, Valcarce AM, Medina MD, Monfort R, de Valcárcel S, Tormo N, Felipe-Román O, Lafuente S, Navío EI, Aldana G, Crespo JV, Llosa JL, González-García L, Raga-Marí R, Pedret Llaberia R, Gonzalez R, Sagarra Álamo R, París Palleja F, Balsells J, Roca JM, Basora Gallisa T, Vizcaino J, Llobet Alpizarte P, Anguera Perpiñá C, Llauradó Vernet M, Caballero C, Garcia Barco M, Morán Martínez MD, García Rosselló J, Del Pozo A, Poblet Calaf C, Arcelin Zabal P, Floresví X, Ciutat Benet M, Palau Galindo A, Cabré Vila JJ, Dolz Andrés F, Boj Casajuana J, Ricard M, Saiz F, Isach A, Sanchez Marin Martinez M, Bulló M, Babio N, Becerra-Tomás N, Mestres G, Basora J, Mena-Sánchez G, Barrubés Piñol L, Gil Segura M, Papandreou C, Rosique Esteban N, Chig S, Abellán Cano I, Ruiz García V, Salas-Huetos A, Hernandez P, Canudas S, Camacho-Barcia L, García-Gavilán J, Diaz A, Castañer O, Muñoz MA, Zomeño MD, Hernaéz A, Torres L, Quifer M, Llimona R, Gal LA, Pérez A, Farràs M, Elosua R, Marrugat J, Vila J, Subirana I, Pérez S, Muñoz MA, Goday A, Chillaron Jordan JJ, Flores Lerroux JA, Benaiges Boix D, Farré M, Menoyo E, Muñoz-Aguayo D, Gaixas S, Blanchart G, Sanllorente A, Soria M, Valussi J, Cuenca A, Forcano L, Pastor A, Boronat A, Tello S, Cabañero M, Franco L, Schröder H, De la Torre R, Medrano C, Bayó J, García MT, Robledo V, Babi P, Canals E, Soldevila N, Carrés L, Roca C, Comas MS, Gasulla G, Herraiz X, Martínez A, Vinyoles E, Verdú JM, Masague Aguade M, Baltasar Massip E, Lopez Grau M, Mengual M, Moldon V, Vila Vergaz M, Cabanes Gómez Ciurana R, Gili Riu M, Palomeras Vidal A, Garcia de la Hera M, González Palacios S, Torres Collado L, Valera Gran D, Compañ Gabucio L, Oncina Canovas A, Notario Barandiaran L, Orozco Beltran D, Pertusa Martínez S, Cloquell Rodrigo B, Hernándis Marsán MV, Asensio A, Altozano Rodado MC, Ballester Baixauli JJ, Fernándis Brufal N, Martínez Vergara MC, Román Maciá J, Candela García I, Pedro Cases Pérez E, Tercero Maciá C, Mira Castejón LA, de los Ángeles García García I, Zazo JM, Gisbert Sellés C, Sánchez Botella C, Fiol M, Moñino M, Colom A, Konieczna J, Morey M, Zamanillo R, Galmés AM, Pereira V, Martín MA, Yáñez A, Llobera J, Ripoll J, Prieto R, Grases F, Costa A, Fernández-Palomeque C, Fortuny E, Noris M, Munuera S, Tomás F, Fiol F, Jover A, Janer JM, Vallespir C, Mattei I, Feuerbach N, del Mar Sureda M, Vega S, Quintana L, Fiol A, Amador M, González S, Coll J, Moyá A, Abete I, Cantero I, Cristobo C, Ibero-Baraibar I, Lezáun Burgui MD, Goñi Ruiz N, Bartolomé Resano R, Cano Cáceres E, Elcarte López T, Echarte Osacain E, Pérez Sanz B, Blanco Platero I, Andueza Azcárate SA, Gimeno Aznar A, Ursúa Sesma E, Ojeda Bilbao B, Martinez Jarauta J, Ugalde Sarasa L, Rípodas Echarte B, Güeto Rubio MV, Fernández-Crehuet Navajas J, Gutiérrez Bedmar M, García Rodriguez A, Mariscal Larrubia A, Carnero Varo M, Muñoz Bravo C, Barón-López FJ, Fernández García JC, Pérez-Farinós N, Moreno-Morales N, del C Rodríguez-Martínez M, Pérez-López J, Benavente-Marín JC, Crespo Oliva E, Contreras Fernández E, Carmona González FJ, Carabaño Moral R, Torres Moreno S, Martín Ruíz MV, Alcalá Cornide M, Fuentes Gómez V, Criado García J, Jiménez Morales AI, Delgado Casado N, Ortiz Morales A, Torres Peña JD, Gómez Delgado FJ, Rodríguez Cantalejo F, Caballero Villaraso J, Alcalá JF, Peña Orihuela PJ, Quintana Navarro G, Casas R, Domenech M, Viñas C, Castro-Barquero S, Ruiz-León AM, Sadurní M, Frontana G, Villanueva P, Gual M, Soriano R, Camafort M, Sierra C, Sacanella E, Sala-Vila A, Cots JM, Sarroca I, García M, Bermúdez N, Pérez A, Duaso I, de la Arada A, Hernández R, Simón C, de la Poza MA, Gil I, Vila M, Iglesias C, Assens N, Amatller M, Rams LL, Benet T, Fernández G, Teruel J, Azorin A, Cubells M, López D, Llovet JM, Gómez ML, Climente P, de Paula L, Soto J, Carbonell C, Llor C, Abat X, Cama A, Fortuny M, Domingo C, Liberal AI, Martínez T, Yañez E, Nieto MJ, Pérez A, Lloret E, Carrazoni C, Belles AM, Olmos C, Ramentol M, Capell MJ, Casas R, Giner I, Muñoz A, Martín R, Moron E, Bonillo A, Sánchez G, Calbó C, Pous J, Massip M, García Y, Massagué MC, Ibañez R, Llaona J, Vidal T, Vizcay N, Segura E, Galindo C, Moreno M, Caubet M, Altirriba J, Fluxà G, Toribio P, Torrent E, Anton JJ, Viaplana A, Vieytes G, Duch N, Pereira A, Moreno MA, Pérez A, Sant E, Gené J, Calvillo H, Pont F, Puig M, Casasayas M, Garrich A, Senar E, Martínez A, Boix I, Sequeira E, Aragunde V, Riera S, Salgado M, Fuentes M, Martín E, Ubieto A, Pallarés F, Sala C, Abilla A, Moreno S, Mayor E, Colom T, Gaspar A, Gómez A, Palacios L, Garrigosa R, García Molina L, Riquelme Gallego B, Cano Ibañez N, Maldonado Calvo A, López Maldonado A, Garrido EM, Baena Dominguez A, García Jiménez F, Thomas Carazo E, Jesús Turnes González A, González Jiménez F, Padilla Ruiz F, Machado Santiago J, Martínez Bellón MD, Pueyos Sánchez A, Arribas Mir L, Rodríguez Tapioles R, Dorador Atienza F, Baena Camus L, Osorio Martos C, Rueda Lozano D, López Alcázar M, Ramos Díaz F, Cruz Rosales Sierra M, Alguacil Cubero P, López Rodriguez A, Guerrero García F, Tormo Molina J, Ruiz Rodríguez F, Rekondo J, Salaverria I, Alonso-Gómez A, Belló MC, Loma-Osorio A, Tojal L, Bruyel P, Goicolea L, Sorto C, Casi Casanellas A, Arnal Otero ML, Ortueta Martínez De Arbulo J, Vinagre Morgado J, Romeo Ollora J, Urraca J, Sarriegui Carrera MI, Toribio FJ, Magán E, Rodríguez A, Castro Madrid S, Gómez Merino MT, Rodríguez Jiménez M, Gutiérrez Jodra M, López Alonso B, Iturralde Iriso J, Pascual Romero C, Izquierdo De La Guerra A, Abbate M, Aguilar I, Angullo E, Arenas A, Argelich E, Bibiloni MM, Bisbal Y, Bouzas C, Busquets C, Capó X, Carreres S, De la Peña A, Gallardo L, Gámez JM, García B, García C, Julibert A, Llompart I, Mascaró CM, Mateos D, Montemayor S, Pons A, Ripoll T, Rodríguez T, Salaberry E, Sureda A, Tejada S, Ugarriza L, Valiño L, Bernal López MR, Macías González M, Ruiz Nava J, Fernández García JC, Muñoz Garach A, Vilches Pérez A, González Banderas A, Alcaide Torres J, Vargas Candela A, León Fernández M, Hernández Robles R, Santamaría Fernández S, Marín JM, Valdés Hernández S, Villalobos JC, Ortiz A, Álvarez-Pérez J, Díaz Benítez EM, Díaz-Collado F, Sánchez-Villegas A, Pérez-Cabrera J, Casañas-Quintana LT, García-Guerra RB, Bautista-Castaño I, Ruano-Rodríguez C, Sarmiento de la Fe F, García-Pastor JA, Macías-Gutiérrez B, Falcón-Sanabria I, Simón-García C, Santana-Santana AJ, Álvarez-Álvarez JB, Díaz-González BV, Castillo Anzalas JM, Sosa-Also RE, Medina-Ponce J, Abajo Olea S, Adlbi Sibai A, Aguado Arconada A, Álvarez L, Carriedo Ule E, Escobar Fernández M, Ferradal García JI, Fernández Vázquez JP, García González M, González Donquiles C, González Quintana C, González Rivero F, Lavinia Popescu M, López Gil JI, López de la Iglesia J, Marcos Delgado A, Merino Acevedo C, Reguero Celada S, Rodríguez Bul M, Vilorio-Marqués L, Santos-Lozano JM, Miró-Moriano L, Domínguez-Espinaco C, Vaquero-Díaz S, García-Corte FJ, Santos-Calonge A, Toro-Cortés C, Pelegrina-López N, Urbano-Fernández V, Ortega-Calvo M, Lozano-Rodríguez J, Rivera-Benítez I, Caballero-Valderrama M, Iglesias-Bonilla P, Román-Torres P, Corchado-Albalat Y, Mayoral-Sánchez E, de Cos AI, Gutierrez S, Artola S, Galdon A, Gonzalo I, Más S, Sierra R, Luca B, Prieto L, Galera A, Gimenez-Gracia M, Figueras R, Poch M, Freixedas R, Trias F, Sarasa I, Fanlo M, Lafuente H, Liceran M, Rodriguez-Sanchez A, Pallarols C, Monedero J, Corbella X, Corbella E, Altés A, Vinagre I, Mestres C, Viaplana J, Serra M, Vera J, Freitas T, Ortega E, Pla I, Ordovás JM, Micó V, Berninches L, Concejo MJ, Muñoz J, Adrián M, de la Fuente Y, Albertos C, Villahoz E, Cornejo ML, Gaforio JJ, Moraleda S, Liétor N, Peis JI, Ureña T, Rueda M, Ballesta MI, Moreno Lopera C, Aragoneses Isabel C, Sirur Flores MA, Ceballos de Diego M, Bescos Cáceres T, Peña Cereceda Y, Martínez Abad M, Cabrera Vela R, González Cerrajero M, Rubio Herrera MA, Torrego Ellacuría M, Barabash Bustelo A, Ortiz Ramos M, Garin Barrutia U, Baños R, García-Palacios A, Cerdá Micó C, Estañ Capell N, Iradi A, Fandos Sánchez M. Cohort Profile: Design and methods of the PREDIMED-Plus randomized trial. Int J Epidemiol 2018; 48:387-388o. [PMID: 30476123 DOI: 10.1093/ije/dyy225] [Citation(s) in RCA: 166] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/08/2018] [Indexed: 01/04/2023] Open
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Liu W, Kohn N, Fernández G. Intersubject similarity of personality is associated with intersubject similarity of brain connectivity patterns. Neuroimage 2018; 186:56-69. [PMID: 30389630 DOI: 10.1016/j.neuroimage.2018.10.062] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 10/16/2018] [Accepted: 10/24/2018] [Indexed: 11/25/2022] Open
Abstract
Personality is a central high-level psychological concept that defines individual human beings and has been associated with a variety of real-world outcomes (e.g., mental health and academic performance). Using 2 h, high resolution, functional magnetic resonance imaging (fMRI) resting state data of 984 (primary dataset N = 801, hold-out dataset N = 183) participants from the Human Connectome Project (HCP), we investigated the relationship between personality (five-factor model, FFM) and intrinsic whole-brain functional connectome. We found a pattern of functional brain connectivity ("global personality network") related to personality traits. Consistent with the heritability of personality traits, the connectivity strength of this global personality network is also heritable (more similar between monozygotic twin pairs compared to the dizygotic twin pairs). Validated by both the repeated family-based 10-fold cross-validation and hold-out dataset, our intersubject network similarity analysis allowed us to identify participants' pairs with similar personality profiles. Across all the identified pairs of participants, we found a positive correlation between the network similarity and personality similarity, supporting our "similar brain, similar personality" hypothesis. Furthermore, the global personality network can be used to predict the individual subject's responses in the personality questionnaire on an item level. In sum, based on individual brain connectivity pattern, we could predict different facets of personality, and this prediction is not based on localized regions, but rather relies on the individual connectivity pattern in large-scale brain networks.
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Fernández G, Morris RGM. Memory, Novelty and Prior Knowledge. Trends Neurosci 2018; 41:654-659. [PMID: 30274601 DOI: 10.1016/j.tins.2018.08.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 08/08/2018] [Indexed: 12/21/2022]
Abstract
Over the 40 years that TINS has been in existence, there has been substantial progress in understanding the types, organisation, and neural mechanisms of memory. The selectivity of memory maintenance and retention remains a puzzle, and we here summarise two contributions of our own research to this enigma: the striking impact of the novelty and surprise often of other events happening around the time that a new memory is encoded and how activated prior knowledge guides the updating process that characterises aspects of memory consolidation.
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Chechko N, Stickel S, Kellermann T, Kirner A, Habel U, Fernández G, Schneider F, Kohn N. Progressively analogous evidence of covert face recognition from functional magnetic resonance imaging and skin conductance responses studies involving a patient with dissociative amnesia. Eur J Neurosci 2018; 48:1964-1975. [DOI: 10.1111/ejn.14087] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 06/04/2018] [Accepted: 06/22/2018] [Indexed: 12/23/2022]
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