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Salthouse TA, Habeck C, Razlighi Q, Barulli D, Gazes Y, Stern Y. Breadth and age-dependency of relations between cortical thickness and cognition. Neurobiol Aging 2015; 36:3020-3028. [PMID: 26356042 DOI: 10.1016/j.neurobiolaging.2015.08.011] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Revised: 08/03/2015] [Accepted: 08/10/2015] [Indexed: 10/23/2022]
Abstract
Recent advances in neuroimaging have identified a large number of neural measures that could be involved in age-related declines in cognitive functioning. A popular method of investigating neural-cognition relations has been to determine the brain regions in which a particular neural measure is associated with the level of specific cognitive measures. Although this procedure has been informative, it ignores the strong interrelations that typically exist among the measures in each modality. An alternative approach involves investigating the number and identity of distinct dimensions within the set of neural measures and within the set of cognitive measures before examining relations between the 2 types of measures. The procedure is illustrated with data from 297 adults between 20 and 79 years of age with cortical thickness in different brain regions as the neural measures and performance on 12 cognitive tests as the cognitive measures. The results revealed that most of the relations between cortical thickness and cognition occurred at a general level corresponding to variance shared among different brain regions and among different cognitive measures. In addition, the strength of the thickness-cognition relation was substantially reduced after controlling the variation in age, which suggests that at least some of the thickness-cognition relations in age-heterogeneous samples may be attributable to the influence of age on each type of measure.
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Affiliation(s)
| | - Christian Habeck
- Cognitive Neuroscience Division, Department of Neurology, Taub Institute for Research on Alzheimer's Disease and The Aging Brain, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - Qolamreza Razlighi
- Cognitive Neuroscience Division, Department of Neurology, Taub Institute for Research on Alzheimer's Disease and The Aging Brain, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - Daniel Barulli
- Cognitive Neuroscience Division, Department of Neurology, Taub Institute for Research on Alzheimer's Disease and The Aging Brain, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - Yunglin Gazes
- Cognitive Neuroscience Division, Department of Neurology, Taub Institute for Research on Alzheimer's Disease and The Aging Brain, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - Yaakov Stern
- Cognitive Neuroscience Division, Department of Neurology, Taub Institute for Research on Alzheimer's Disease and The Aging Brain, Columbia University College of Physicians and Surgeons, New York, NY, USA
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52
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Basten U, Hilger K, Fiebach CJ. Where smart brains are different: A quantitative meta-analysis of functional and structural brain imaging studies on intelligence. INTELLIGENCE 2015. [DOI: 10.1016/j.intell.2015.04.009] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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53
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Robertson FC, Narr KL, Molteno CD, Jacobson JL, Jacobson SW, Meintjes EM. Prenatal Alcohol Exposure is Associated with Regionally Thinner Cortex During the Preadolescent Period. Cereb Cortex 2015; 26:3083-95. [PMID: 26088967 DOI: 10.1093/cercor/bhv131] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Children with fetal alcohol spectrum disorders (FASD) may exhibit craniofacial dysmorphology, neurobehavioral deficits, and reduced brain volume. Studies of cortical thickness in FASD have yielded contradictory findings, with 3 reporting thicker cerebral cortex in frontal and temporal brain regions and 2 showing thinner cortex across multiple regions. All 5 studies included subjects spanning a broad age range, and none have examined continuous measures of prenatal alcohol exposure. We investigated the relation of extent of in utero alcohol exposure to cortical thickness in 78 preadolescent children with FASD and controls within a narrow age range. A whole-brain analysis using FreeSurfer revealed no significant clusters where cortical thickness differed by FASD diagnostic group. However, alcohol dose/occasion during pregnancy was inversely related to cortical thickness in 3 regions-right cuneus/pericalcarine/superior parietal lobe, fusiform/lingual gyrus, and supramarginal/postcentral gyrus. The effect of prenatal alcohol exposure on IQ was mediated by cortical thickness in the right occipitotemporal region. It is noteworthy that a continuous measure of maternal alcohol consumption during pregnancy was more sensitive than FASD diagnosis and that the effect on cortical thickness was most evident in relation to a measure of maternal binge drinking.
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Affiliation(s)
- Frances C Robertson
- MRC/UCT Medical Imaging Research Unit Department of Human Biology, Faculty of Health Sciences
| | - Katherine L Narr
- Laboratory of Neuro Imaging, UCLA School of Medicine, Los Angeles, Los Angeles, CA, USA
| | - Christopher D Molteno
- Department of Psychiatry and Mental Health, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Joseph L Jacobson
- Department of Human Biology, Faculty of Health Sciences Department of Psychiatry and Mental Health, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI, USA
| | - Sandra W Jacobson
- Department of Human Biology, Faculty of Health Sciences Department of Psychiatry and Mental Health, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI, USA
| | - Ernesta M Meintjes
- MRC/UCT Medical Imaging Research Unit Department of Human Biology, Faculty of Health Sciences
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54
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Martínez K, Madsen SK, Joshi AA, Joshi SH, Román FJ, Villalon-Reina J, Burgaleta M, Karama S, Janssen J, Marinetto E, Desco M, Thompson PM, Colom R. Reproducibility of brain-cognition relationships using three cortical surface-based protocols: An exhaustive analysis based on cortical thickness. Hum Brain Mapp 2015; 36:3227-45. [PMID: 26032714 DOI: 10.1002/hbm.22843] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 04/20/2015] [Accepted: 05/04/2015] [Indexed: 11/11/2022] Open
Abstract
People differ in their cognitive functioning. This variability has been exhaustively examined at the behavioral, neural and genetic level to uncover the mechanisms by which some individuals are more cognitively efficient than others. Studies investigating the neural underpinnings of interindividual differences in cognition aim to establish a reliable nexus between functional/structural properties of a given brain network and higher order cognitive performance. However, these studies have produced inconsistent results, which might be partly attributed to methodological variations. In the current study, 82 healthy young participants underwent MRI scanning and completed a comprehensive cognitive battery including measurements of fluid, crystallized, and spatial intelligence, along with working memory capacity/executive updating, controlled attention, and processing speed. The cognitive scores were obtained by confirmatory factor analyses. T1 -weighted images were processed using three different surface-based morphometry (SBM) pipelines, varying in their degree of user intervention, for obtaining measures of cortical thickness (CT) across the brain surface. Distribution and variability of CT and CT-cognition relationships were systematically compared across pipelines and between two cognitively/demographically matched samples to overcome potential sources of variability affecting the reproducibility of findings. We demonstrated that estimation of CT was not consistent across methods. In addition, among SBM methods, there was considerable variation in the spatial pattern of CT-cognition relationships. Finally, within each SBM method, results did not replicate in matched subsamples.
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Affiliation(s)
- Kenia Martínez
- Departamento de Psicología Biológica y de la Salud, Facultad De Psicología, Universidad Autónoma De Madrid, Spain.,Departamento de Psiquiatría del Niño y del Adolescente, Instituto De Investigación Sanitaria Hospital Gregorio Marañón, Madrid, Spain
| | - Sarah K Madsen
- USC Mark and Mary Stevens Neuroimaging and Informatics Institute, Imaging Genetics Center, University of Southern California, Los Angeles, California
| | - Anand A Joshi
- Biomedical Imaging Group, University of Southern California, Los Angeles, California
| | - Shantanu H Joshi
- Department of Neurology, Ahmanson Lovelace Brain Mapping Center, University of California Los Angeles, California
| | - Francisco J Román
- Departamento de Psicología Biológica y de la Salud, Facultad De Psicología, Universidad Autónoma De Madrid, Spain
| | - Julio Villalon-Reina
- Biomedical Imaging Group, University of Southern California, Los Angeles, California
| | - Miguel Burgaleta
- Center for Brain and Cognition, Universitat Pompeu Fabra, Barcelona, Spain
| | - Sherif Karama
- Montreal Neurological Institute (MNI), Montreal, Canada
| | - Joost Janssen
- Departamento de Psiquiatría del Niño y del Adolescente, Instituto De Investigación Sanitaria Hospital Gregorio Marañón, Madrid, Spain.,Ciber del área de Salud Mental (CIBERSAM), Madrid, Spain.,Department of Psychiatry, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Eugenio Marinetto
- Departamento de Psiquiatría del Niño y del Adolescente, Instituto De Investigación Sanitaria Hospital Gregorio Marañón, Madrid, Spain.,Departamento De Bioingeniería E Ingeniería Aeroespacial, Universidad Carlos III De Madrid, Madrid, Spain
| | - Manuel Desco
- Ciber del área de Salud Mental (CIBERSAM), Madrid, Spain.,Departamento De Bioingeniería E Ingeniería Aeroespacial, Universidad Carlos III De Madrid, Madrid, Spain.,Unidad De Medicina Y Cirugía Experimental, Instituto De Investigación Sanitaria Hospital Gregorio Marañón, Madrid, Spain
| | - Paul M Thompson
- Biomedical Imaging Group, University of Southern California, Los Angeles, California
| | - Roberto Colom
- Departamento de Psicología Biológica y de la Salud, Facultad De Psicología, Universidad Autónoma De Madrid, Spain
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55
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Jauk E, Neubauer AC, Dunst B, Fink A, Benedek M. Gray matter correlates of creative potential: a latent variable voxel-based morphometry study. Neuroimage 2015; 111:312-20. [PMID: 25676914 PMCID: PMC4401439 DOI: 10.1016/j.neuroimage.2015.02.002] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 01/30/2015] [Accepted: 02/03/2015] [Indexed: 12/04/2022] Open
Abstract
There is increasing research interest in the structural and functional brain correlates underlying creative potential. Recent investigations found that interindividual differences in creative potential relate to volumetric differences in brain regions belonging to the default mode network, such as the precuneus. Yet, the complex interplay between creative potential, intelligence, and personality traits and their respective neural bases is still under debate. We investigated regional gray matter volume (rGMV) differences that can be associated with creative potential in a heterogeneous sample of N = 135 individuals using voxel-based morphometry (VBM). By means of latent variable modeling and consideration of recent psychometric advancements in creativity research, we sought to disentangle the effects of ideational originality and fluency as two independent indicators of creative potential. Intelligence and openness to experience were considered as common covariates of creative potential. The results confirmed and extended previous research: rGMV in the precuneus was associated with ideational originality, but not with ideational fluency. In addition, we found ideational originality to be correlated with rGMV in the caudate nucleus. The results indicate that the ability to produce original ideas is tied to default-mode as well as dopaminergic structures. These structural brain correlates of ideational originality were apparent throughout the whole range of intellectual ability and thus not moderated by intelligence. In contrast, structural correlates of ideational fluency, a quantitative marker of creative potential, were observed only in lower intelligent individuals in the cuneus/lingual gyrus. We studied gray matter correlates of creativity by means of voxel-based morphometry. Latent variables were used as predictors of regional gray matter volume. Creative potential was measured by means of ideational originality and fluency. Originality was correlated to gray matter in the precuneus and nucleus caudatus. Fluency was correlated to cuneus gray matter, but only in lower IQ individuals.
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Affiliation(s)
- Emanuel Jauk
- Department of Psychology, University of Graz, BioTechMed-Graz, Austria.
| | | | - Beate Dunst
- Department of Psychology, University of Graz, BioTechMed-Graz, Austria
| | - Andreas Fink
- Department of Psychology, University of Graz, BioTechMed-Graz, Austria
| | - Mathias Benedek
- Department of Psychology, University of Graz, BioTechMed-Graz, Austria
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56
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Bruner E, Román F, de la Cuétara J, Martin-Loeches M, Colom R. Cortical surface area and cortical thickness in the precuneus of adult humans. Neuroscience 2015; 286:345-52. [DOI: 10.1016/j.neuroscience.2014.11.063] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 11/10/2014] [Accepted: 11/25/2014] [Indexed: 11/17/2022]
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57
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Forbes CE, Leitner JB. Stereotype threat engenders neural attentional bias toward negative feedback to undermine performance. Biol Psychol 2014; 102:98-107. [DOI: 10.1016/j.biopsycho.2014.07.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Revised: 05/16/2014] [Accepted: 07/07/2014] [Indexed: 11/29/2022]
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58
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59
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The effects of theta transcranial alternating current stimulation (tACS) on fluid intelligence. Int J Psychophysiol 2014; 93:322-31. [PMID: 24998643 DOI: 10.1016/j.ijpsycho.2014.06.015] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2014] [Revised: 06/05/2014] [Accepted: 06/27/2014] [Indexed: 11/22/2022]
Abstract
The objective of the study was to explore the influence of transcranial alternating current stimulation (tACS) on resting brain activity and on measures of fluid intelligence. Theta tACS was applied to the left parietal and left frontal brain areas of healthy participants after which resting electroencephalogram (EEG) data was recorded. Following sham/active stimulation, the participants solved two tests of fluid intelligence while their EEG was recorded. The results showed that active theta tACS affected spectral power in theta and alpha frequency bands. In addition, active theta tACS improved performance on tests of fluid intelligence. This influence was more pronounced in the group of participants that received stimulation to the left parietal area than in the group of participants that received stimulation to the left frontal area. Left parietal tACS increased performance on the difficult test items of both tests (RAPM and PF&C) whereas left frontal tACS increased performance only on the easy test items of one test (RAPM). The observed behavioral tACS influences were also accompanied by changes in neuroelectric activity. The behavioral and neuroelectric data tentatively support the P-FIT neurobiological model of intelligence.
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60
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Li C, Tian L. Association between resting-state coactivation in the parieto-frontal network and intelligence during late childhood and adolescence. AJNR Am J Neuroradiol 2014; 35:1150-6. [PMID: 24557703 DOI: 10.3174/ajnr.a3850] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE A number of studies have associated the adult intelligence quotient with the structure and function of the bilateral parieto-frontal networks, whereas the relationship between intelligence quotient and parieto-frontal network function has been found to be relatively weak in early childhood. Because both human intelligence and brain function undergo protracted development into adulthood, the purpose of the present study was to provide a better understanding of the development of the parieto-frontal network-intelligence quotient relationship. MATERIALS AND METHODS We performed independent component analysis of resting-state fMRI data of 84 children and 50 adolescents separately and then correlated full-scale intelligence quotient with the spatial maps of the bilateral parieto-frontal networks of each group. RESULTS In children, significant positive spatial-map versus intelligence quotient correlations were detected in the right angular gyrus and inferior frontal gyrus in the right parieto-frontal network, and no significant correlation was observed in the left parieto-frontal network. In adolescents, significant positive correlation was detected in the left inferior frontal gyrus in the left parieto-frontal network, and the correlations in the frontal pole in the 2 parieto-frontal networks were only marginally significant. CONCLUSIONS The present findings not only support the critical role of the parieto-frontal networks for intelligence but indicate that the relationship between intelligence quotient and the parieto-frontal network in the right hemisphere has been well established in late childhood, and that the relationship in the left hemisphere was also established in adolescence.
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Affiliation(s)
- C Li
- From the Department of Biomedical Engineering, School of Computer and Information Technology, Beijing Jiaotong University, Beijing, China
| | - L Tian
- From the Department of Biomedical Engineering, School of Computer and Information Technology, Beijing Jiaotong University, Beijing, China.
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61
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Burgaleta M, MacDonald PA, Martínez K, Román FJ, Álvarez‐Linera J, González AR, Karama S, Colom R. Subcortical regional morphology correlates with fluid and spatial intelligence. Hum Brain Mapp 2014; 35:1957-68. [PMID: 23913782 PMCID: PMC6869737 DOI: 10.1002/hbm.22305] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 02/28/2013] [Accepted: 03/25/2013] [Indexed: 11/09/2022] Open
Abstract
Neuroimaging studies have revealed associations between intelligence and brain morphology. However, researchers have focused primarily on the anatomical features of the cerebral cortex, whereas subcortical structures, such as the basal ganglia (BG), have often been neglected despite extensive functional evidence on their relation with higher-order cognition. Here we performed shape analyses to understand how individual differences in BG local morphology account for variability in cognitive performance. Structural MRI was acquired in 104 young adults (45 men, 59 women, mean age = 19.83, SD = 1.64), and the outer surface of striatal structures (caudate, nucleus accumbens, and putamen), globus pallidus, and thalamus was estimated for each subject and hemisphere. Further, nine cognitive tests were used to measure fluid (Gf), crystallized (Gc), and spatial intelligence (Gv). Latent scores for these factors were computed by means of confirmatory factor analysis and regressed vertex-wise against subcortical shape (local displacements of vertex position), controlling for age, sex, and adjusted for brain size. Significant results (FDR < 5%) were found for Gf and Gv, but not Gc, for the right striatal structures and thalamus. The main results show a relative enlargement of the rostral putamen, which is functionally connected to the right dorsolateral prefrontal cortex and other intelligence-related prefrontal areas.
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Affiliation(s)
- Miguel Burgaleta
- Center for Brain and CognitionUniversitat Pompeu FabraBarcelonaSpain
- Facultad de PsicologíaUniversidad Autónoma de MadridMadridSpain
- Fundación CIEN‐Fundación Reina SofíaMadridSpain
| | - Penny A. MacDonald
- Brain and Mind Institute, University of Western OntarioLondonOntarioCanada
| | - Kenia Martínez
- Facultad de PsicologíaUniversidad Autónoma de MadridMadridSpain
- Fundación CIEN‐Fundación Reina SofíaMadridSpain
| | - Francisco J. Román
- Facultad de PsicologíaUniversidad Autónoma de MadridMadridSpain
- Fundación CIEN‐Fundación Reina SofíaMadridSpain
| | - Juan Álvarez‐Linera
- Fundación CIEN‐Fundación Reina SofíaMadridSpain
- Ruber International HospitalMadridSpain
| | - Ana Ramos González
- Sección de NeurorradiologíaHospital Universitario 12 de OctubreMadridSpain
| | - Sherif Karama
- Douglas Mental Health University InstituteMcGill UniversityMontrealQuebec
| | - Roberto Colom
- Facultad de PsicologíaUniversidad Autónoma de MadridMadridSpain
- Fundación CIEN‐Fundación Reina SofíaMadridSpain
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62
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Medial prefrontal and anterior cingulate cortical thickness predicts shared individual differences in self-generated thought and temporal discounting. Neuroimage 2014; 90:290-7. [DOI: 10.1016/j.neuroimage.2013.12.040] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 12/17/2013] [Accepted: 12/22/2013] [Indexed: 11/24/2022] Open
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63
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64
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Abstract
Contradiction is a cornerstone of human rationality, essential for everyday life and communication. We investigated electroencephalographic (EEG) and functional magnetic resonance imaging (fMRI) in separate recording sessions during contradictory judgments, using a logical structure based on categorical propositions of the Aristotelian Square of Opposition (ASoO). The use of ASoO propositions, while controlling for potential linguistic or semantic confounds, enabled us to observe the spatial temporal unfolding of this contradictory reasoning. The processing started with the inversion of the logical operators corresponding to right middle frontal gyrus (rMFG-BA11) activation, followed by identification of contradictory statement associated with in the right inferior frontal gyrus (rIFG-BA47) activation. Right medial frontal gyrus (rMeFG, BA10) and anterior cingulate cortex (ACC, BA32) contributed to the later stages of process. We observed a correlation between the delayed latency of rBA11 response and the reaction time delay during inductive vs. deductive reasoning. This supports the notion that rBA11 is crucial for manipulating the logical operators. Slower processing time and stronger brain responses for inductive logic suggested that examples are easier to process than general principles and are more likely to simplify communication.
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65
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Haier RJ. Increased intelligence is a myth (so far). Front Syst Neurosci 2014; 8:34. [PMID: 24659957 PMCID: PMC3950413 DOI: 10.3389/fnsys.2014.00034] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Accepted: 02/23/2014] [Indexed: 11/13/2022] Open
Affiliation(s)
- Richard J Haier
- Emeritus, Pediatrics, School of Medicine, University of California Irvine, CA, USA
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66
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Prefrontal cortex and executive functions in healthy adults: a meta-analysis of structural neuroimaging studies. Neurosci Biobehav Rev 2014. [PMID: 24568942 DOI: 10.1016/j.neubiorev.2014.02.005.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lesion studies link the prefrontal cortex (PFC) to executive functions. However, the evidence from in vivo investigations in healthy people is mixed, and there are no quantitative estimates of the association strength. To examine the relationship between PFC volume and cortical thickness with executive cognition in healthy adults, we conducted a meta-analysis of studies that assessed executive functions and PFC volume (31 samples,) and PFC thickness (10 samples) in vivo, N=3272 participants. We found that larger PFC volume and greater PFC thickness were associated with better executive performance. Stronger associations between executive functions and PFC volume were linked to greater variance in the sample age but was unrelated to the mean age of a sample. Strength of association between cognitive and neuroanatomical indices depended on the executive task used in the study. PFC volume correlated stronger with Wisconsin Card Sorting Test than with digit backwards span, Trail Making Test and verbal fluency. Significant effect size was observed in lateral and medial but not orbital PFC. The results support the "bigger is better" hypothesis of brain-behavior relation in healthy adults and suggest different neural correlates across the neuropsychological tests used to assess executive functions.
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67
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Prefrontal cortex and executive functions in healthy adults: a meta-analysis of structural neuroimaging studies. Neurosci Biobehav Rev 2014; 42:180-92. [PMID: 24568942 DOI: 10.1016/j.neubiorev.2014.02.005] [Citation(s) in RCA: 367] [Impact Index Per Article: 36.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2013] [Revised: 02/06/2014] [Accepted: 02/14/2014] [Indexed: 01/03/2023]
Abstract
Lesion studies link the prefrontal cortex (PFC) to executive functions. However, the evidence from in vivo investigations in healthy people is mixed, and there are no quantitative estimates of the association strength. To examine the relationship between PFC volume and cortical thickness with executive cognition in healthy adults, we conducted a meta-analysis of studies that assessed executive functions and PFC volume (31 samples,) and PFC thickness (10 samples) in vivo, N=3272 participants. We found that larger PFC volume and greater PFC thickness were associated with better executive performance. Stronger associations between executive functions and PFC volume were linked to greater variance in the sample age but was unrelated to the mean age of a sample. Strength of association between cognitive and neuroanatomical indices depended on the executive task used in the study. PFC volume correlated stronger with Wisconsin Card Sorting Test than with digit backwards span, Trail Making Test and verbal fluency. Significant effect size was observed in lateral and medial but not orbital PFC. The results support the "bigger is better" hypothesis of brain-behavior relation in healthy adults and suggest different neural correlates across the neuropsychological tests used to assess executive functions.
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68
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Román FJ, Abad FJ, Escorial S, Burgaleta M, Martínez K, Álvarez-Linera J, Quiroga MÁ, Karama S, Haier RJ, Colom R. Reversed hierarchy in the brain for general and specific cognitive abilities: a morphometric analysis. Hum Brain Mapp 2014; 35:3805-18. [PMID: 24677433 DOI: 10.1002/hbm.22438] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Revised: 09/16/2013] [Accepted: 11/11/2013] [Indexed: 11/12/2022] Open
Abstract
Intelligence is composed of a set of cognitive abilities hierarchically organized. General and specific abilities capture distinguishable, but related, facets of the intelligence construct. Here, we analyze gray matter with three morphometric indices (volume, cortical surface area, and cortical thickness) at three levels of the intelligence hierarchy (tests, first-order factors, and a higher-order general factor, g). A group of one hundred and four healthy young adults completed a cognitive battery and underwent high-resolution structural MRI. Latent scores were computed for the intelligence factors and tests were also analyzed. The key finding reveals substantial variability in gray matter correlates at the test level, which is substantially reduced for the first-order and the higher-order factors. This supports a reversed hierarchy in the brain with respect to cognitive abilities at different psychometric levels: the greater the generality, the smaller the number of relevant gray matter clusters accounting for individual differences in intelligent performance.
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Affiliation(s)
- Francisco J Román
- Facultad de Psicología, Universidad Autónoma de Madrid, 28049, Madrid, Spain; Fundación CIEN - Fundación Reina Sofía, 28031, Madrid, Spain
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69
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Vuoksimaa E, Panizzon MS, Chen CH, Fiecas M, Eyler LT, Fennema-Notestine C, Hagler DJ, Fischl B, Franz CE, Jak A, Lyons MJ, Neale MC, Rinker DA, Thompson WK, Tsuang MT, Dale AM, Kremen WS. The Genetic Association Between Neocortical Volume and General Cognitive Ability Is Driven by Global Surface Area Rather Than Thickness. Cereb Cortex 2014; 25:2127-37. [PMID: 24554725 DOI: 10.1093/cercor/bhu018] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Total gray matter volume is associated with general cognitive ability (GCA), an association mediated by genetic factors. It is expectable that total neocortical volume should be similarly associated with GCA. Neocortical volume is the product of thickness and surface area, but global thickness and surface area are unrelated phenotypically and genetically in humans. The nature of the genetic association between GCA and either of these 2 cortical dimensions has not been examined. Humans possess greater cognitive capacity than other species, and surface area increases appear to be the primary driver of the increased size of the human cortex. Thus, we expected neocortical surface area to be more strongly associated with cognition than thickness. Using multivariate genetic analysis in 515 middle-aged twins, we demonstrated that both the phenotypic and genetic associations between neocortical volume and GCA are driven primarily by surface area rather than thickness. Results were generally similar for each of 4 specific cognitive abilities that comprised the GCA measure. Our results suggest that emphasis on neocortical surface area, rather than thickness, could be more fruitful for elucidating neocortical-GCA associations and identifying specific genes underlying those associations.
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Affiliation(s)
- Eero Vuoksimaa
- Department of Psychiatry Center for Behavioral Genomics Twin Research Laboratory Department of Public Health, University of Helsinki, Helsinki, Finland
| | - Matthew S Panizzon
- Department of Psychiatry Center for Behavioral Genomics Twin Research Laboratory
| | - Chi-Hua Chen
- Department of Psychiatry Center for Behavioral Genomics Twin Research Laboratory
| | - Mark Fiecas
- Department of Psychiatry Center for Behavioral Genomics Twin Research Laboratory
| | - Lisa T Eyler
- Department of Psychiatry Mental Illness Research Education and Clinical Center, VA San Diego Healthcare System, San Diego, CA, USA
| | | | | | - Bruce Fischl
- Department of Radiology, Massachusetts General Hospital, Boston, MA, USA Harvard Medical School, Boston, MA, USA Computer Science and AI Lab, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Carol E Franz
- Department of Psychiatry Center for Behavioral Genomics Twin Research Laboratory
| | - Amy Jak
- Department of Psychiatry Center of Excellence for Stress and Mental Health, VA San Diego Healthcare System, La Jolla, CA, USA
| | - Michael J Lyons
- Department of Psychology, Boston University, Boston, MA, USA
| | - Michael C Neale
- Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | | | | | - Ming T Tsuang
- Department of Psychiatry Center for Behavioral Genomics Twin Research Laboratory
| | - Anders M Dale
- Department of Radiology and Department of Neurosciences, University of California, San Diego, La Jolla, CA, USA
| | - William S Kremen
- Department of Psychiatry Center for Behavioral Genomics Twin Research Laboratory Center of Excellence for Stress and Mental Health, VA San Diego Healthcare System, La Jolla, CA, USA
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Lyness CR, Woll B, Campbell R, Cardin V. How does visual language affect crossmodal plasticity and cochlear implant success? Neurosci Biobehav Rev 2013; 37:2621-30. [PMID: 23999083 PMCID: PMC3989033 DOI: 10.1016/j.neubiorev.2013.08.011] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Revised: 08/07/2013] [Accepted: 08/21/2013] [Indexed: 11/14/2022]
Abstract
Cochlear implants (CI) are the most successful intervention for ameliorating hearing loss in severely or profoundly deaf children. Despite this, educational performance in children with CI continues to lag behind their hearing peers. From animal models and human neuroimaging studies it has been proposed the integrative functions of auditory cortex are compromised by crossmodal plasticity. This has been argued to result partly from the use of a visual language. Here we argue that 'cochlear implant sensitive periods' comprise both auditory and language sensitive periods, and thus cannot be fully described with animal models. Despite prevailing assumptions, there is no evidence to link the use of a visual language to poorer CI outcome. Crossmodal reorganisation of auditory cortex occurs regardless of compensatory strategies, such as sign language, used by the deaf person. In contrast, language deprivation during early sensitive periods has been repeatedly linked to poor language outcomes. Language sensitive periods have largely been ignored when considering variation in CI outcome, leading to ill-founded recommendations concerning visual language in CI habilitation.
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Affiliation(s)
- C R Lyness
- Cognitive, Perceptual and Brain Sciences, 26 Bedford Way, University College London, London WC1H 0AP, UK.
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Brühl AB, Hänggi J, Baur V, Rufer M, Delsignore A, Weidt S, Jäncke L, Herwig U. Increased cortical thickness in a frontoparietal network in social anxiety disorder. Hum Brain Mapp 2013; 35:2966-77. [PMID: 24039023 DOI: 10.1002/hbm.22378] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Revised: 07/10/2013] [Accepted: 07/15/2013] [Indexed: 11/09/2022] Open
Abstract
Social anxiety disorder (SAD) is the second leading anxiety disorder. On the functional neurobiological level, specific brain regions involved in the processing of anxiety-laden stimuli and in emotion regulation have been shown to be hyperactive and hyper-responsive in SAD such as amygdala, insula and orbito- and prefrontal cortex. On the level of brain structure, prior studies on anatomical differences in SAD resulted in mixed and partially contradictory findings. Based on previous functional and anatomical models of SAD, this study examined cortical thickness in structural magnetic resonance imaging data of 46 patients with SAD without comorbidities (except for depressed episode in one patient) compared with 46 matched healthy controls in a region of interest-analysis and in whole-brain. In a theory-driven ROI-analysis, cortical thickness was increased in SAD in left insula, right anterior cingulate and right temporal pole. Furthermore, the whole-brain analysis revealed increased thickness in right dorsolateral prefrontal and right parietal cortex. This study detected no regions of decreased cortical thickness or brain volume in SAD. From the perspective of brain networks, these findings are in line with prior functional differences in salience networks and frontoparietal networks associated with executive-controlling and attentional functions.
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Affiliation(s)
- Annette Beatrix Brühl
- Department of Psychiatry, Psychotherapy and Psychosomatics, University Hospital for Psychiatry Zürich, Zurich, Switzerland
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