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A BOLD search for baseline
2007
NeuroImage
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While their main findings point to an energetic basis for the negative BOLD signal, their results have far reaching implications for the present definition of baseline as well as for future research investigating ...
Pasley et al (2006) used calibrated fMRI in conjunction with a novel stimulus paradigm to investigate the neural basis of the negative BOLD signal in awake humans. ...
Acknowledgments We are grateful for support from National Institutes of Health R01 grants (DC-03710 to FH; MH-67528 to FH; NS-037527 to DLR; NS-051854 to DLR) and appreciate engineers of MRRC (mrrc.yale.edu ...
doi:10.1016/j.neuroimage.2006.11.035
pmid:17223362
pmcid:PMC2684871
fatcat:vnt3bta3gnggtdt5voxanckyga
Multiple neural correlates of detection in the human brain
2000
Proceedings of the National Academy of Sciences of the United States of America
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Many other regions, however, including areas in prefrontal cortex and anterior cingulate, were not involved in searching for a target. ...
These regions, many of which were motion sensitive, were likely involved in searching for and detecting the target. ...
Akbudak, and A. Snyder for software development; F. Miezin for constructing the behavioral apparatus; and B. Schlagger and L. Snyder for comments. ...
doi:10.1073/pnas.021381198
pmid:11134528
pmcid:PMC14587
fatcat:w4reus3d3rggrk5c37t62qiebe
Multiple neural correlates of detection in the human brain
2001
Proceedings of the National Academy of Sciences of the United States of America
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Many other regions, however, including areas in prefrontal cortex and anterior cingulate, were not involved in searching for a target. ...
These regions, many of which were motion sensitive, were likely involved in searching for and detecting the target. ...
Akbudak, and A. Snyder for software development; F. Miezin for constructing the behavioral apparatus; and B. Schlagger and L. Snyder for comments. ...
doi:10.1073/pnas.98.1.313
pmid:11134528
pmcid:PMC14587
fatcat:6fesfv4earhojh2jfhfmarj4yu
Separating distractor rejection and target detection in posterior parietal cortex—an event-related fMRI study of visual marking
2003
NeuroImage
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Successful survival in a competitive world requires the employment of efficient procedures for selecting new in preference to old information. ...
Event-related analysis of functional magnetic resonance imaging data from a task involving visual search across time as well as space indicates that the superior parietal lobule is specifically involved ...
We thank two anonymous reviewers for their helpful comments. ...
doi:10.1016/s1053-8119(02)00036-8
pmid:12595185
fatcat:n3j533r4mrf63dun4z2pngyagi
DECOMPOSITION OF NEURAL CIRCUITS OF HUMAN ATTENTION USING A MODEL-BASED ANALYSIS: sSoTS MODEL APPLICATION TO fMRI DATA
2009
Connectionist Models of Behaviour and Cognition II
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The model for visual search over time and space (sSoTS) incorporates different synaptic components (NMDA, AMPA, GABA) and a frequency adaptation mechanism based on IAHP current. ...
In this study we use the model to decompose the neural regions mediating the processes of active attentional guidance, and the inhibition of distractors, in search. ...
baseline), standard preview search and preview search with a working memory load (the loaded search condition). data in precuneus by convolving the activation with the HDR. ...
doi:10.1142/9789812834232_0033
fatcat:wvxwtrw4ejgdbkte4zjz2eyiqm
Model Based Analysis of fMRI-Data: Applying the sSoTS Framework to the Neural Basic of Preview Search
[chapter]
2009
Lecture Notes in Computer Science
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Here we used sSoTS to help decompose the fMRI signals found in a preview search procedure, when participants search for a new target whilst ignoring old distractors. ...
The time course of activity linked to inhibitory and excitatory processes in the model was used as a regressor for the fMRI data. ...
single feature search (the half set baseline), conjunction search (the full set baseline), standard preview search and preview search with a working memory load (the loaded search condition). ...
doi:10.1007/978-3-642-00582-4_10
fatcat:2bygptrqsze6xmlbvodsz2koqe
Mere exposure effect(s) in the context of explicit memory search
2019
Memory & Cognition
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This suggests that it is the outcome of memory search that alters pleasantness ratings in the context of retrieval demands, and we discuss how this confirmation of search (COS) hypothesis accounts for ...
As important, items endorsed as unstudied, rejected as originating from a queried source, or failing to yield successful recall of a paired associated were rated as less pleasant than baseline norms. ...
Table 1 1 Means and standard deviations for proportion Bold^response outcome as a function of a 3(Group) × 2(Response Outcome) design in Experiment 2Note. ...
doi:10.3758/s13421-019-00935-3
pmid:31144203
fatcat:mjvdgf6czvaj3m4vdcsuy5kk4q
Systematic Review: Anaesthetic Protocols and Management as Confounders in Rodent Blood Oxygen Level Dependent Functional Magnetic Resonance Imaging (BOLD fMRI)–Part A: Effects of Changes in Physiological Parameters
2020
Frontiers in Neuroscience
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Four databases were searched, studies selected according to pre-defined criteria, and risk of bias assessed for each study. ...
Because animals need to be immobilised for image acquisition, fMRI is commonly performed under anaesthesia. ...
Search Strategy A systematic search strategy was developed with support from the university's library service. ...
doi:10.3389/fnins.2020.577119
pmid:33192261
pmcid:PMC7646331
fatcat:6xm4dxte7zbk3bfilokdsr6moi
Effectiveness of the open bite treatment in growing children and adolescents. A systematic review
2015
European Journal of Orthodontics
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Results Study selection After electronic searching, inclusion of hand-searched studies, and screening phase, 65 studies were pre-selected for full reading. From ...
However, some useful clinical inferences and suggestions for future studies were provided for each therapeutic modality considered here. ...
A search strategy was originally designed for PubMed, and subsequently adapted to the remaining databases (Supplementary Appendix 1). ...
doi:10.1093/ejo/cjv048
pmid:26136439
pmcid:PMC4914905
fatcat:fuhjdazudbfctdpwnen25rvqqa
Cerebral perfusion and oxygenation differences in Alzheimer's disease risk
2009
Neurobiology of Aging
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in different risk groups for AD. ...
These data demonstrate that individuals with increased risk for Alzheimer's disease have elevated MTL resting cerebral blood flow, which significantly influences apparent differences in BOLD activations ...
Acknowledgement This research was funded by a National Institute on Aging grant: k23 AG024062. ...
doi:10.1016/j.neurobiolaging.2008.01.012
pmid:18325636
pmcid:PMC2746874
fatcat:ljbphxvgardxlb7pnfwt6dcnyi
Time-on-task and sleep deprivation effects are evidenced in overlapping brain areas
2013
NeuroImage
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Sleep deprivation and time-on-task caused a decline of both measures in ventral visual cortex. BOLD fMRI also revealed such declines in fronto-parietal cortex. ...
We compared task-related changes in BOLD signal alongside ASL-based cerebral blood flow (CBF) changes. We also collected resting baseline CBF data prior to and following task performance. ...
Acknowledgments The authors thank Xavier Golay and Wen-Chau Wu for technical assistance and helpful discussion. ...
doi:10.1016/j.neuroimage.2013.05.119
pmid:23747456
fatcat:jhwnh5wvmfaercnk3da7b6di6u
Right TPJ Deactivation during Visual Search: Functional Significance and Support for a Filter Hypothesis
2007
Cerebral Cortex
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When subjects monitor a stream of distracter objects for a target, TPJ deactivates until the target is detected. ...
An analysis of the blood oxygenation level--dependent (BOLD) task-evoked signals from 20 subjects during 2 monitoring tasks confirmed this prediction for regions in right supramarginal gyrus (SMG). ...
to a no-task baseline. ...
doi:10.1093/cercor/bhl170
pmid:17264254
fatcat:w5kmeed5sfeexjuwryiyf2om6e
Functional brain organization for visual search in ASD
2008
Journal of the International Neuropsychological Society
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Direct comparisons (for both homogeneous and heterogeneous search conditions) revealed greater activation in occipital and frontoparietal regions in ASD than in TD participants. ...
We used a visual search paradigm, manipulating search difficulty by varying set size (6, 12, or 24 items), distractor composition (heterogeneous or homogeneous) and target presence to identify brain regions ...
Special thanks to Frank Haist for technical assistance, to Natacha Akshoomoff for help in the recruitment and diagnosis of participants with autism, and especially to the children and families who generously ...
doi:10.1017/s1355617708081356
pmid:18954479
fatcat:37bbtfzu7feldaxbokwytr2svi
Episodic Memory Retrieval, Parietal Cortex, and the Default Mode Network: Functional and Topographic Analyses
2011
Journal of Neuroscience
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Finally, a robust functional dissociation within the DMN was observed. ...
Moreover, a parahippocampal region that showed strong resting-state connectivity with parietal DMN regions also exhibited a pattern of task-evoked activity similar to that exhibited by DMN regions. ...
to the baseline in the memory search task. ...
doi:10.1523/jneurosci.3335-10.2011
pmid:21430142
pmcid:PMC3098040
fatcat:65vto6hcnfdahbrpvt7qavtddm
Data and Supplementary Figures and Tables from Meta-analysis reveals weak associations between intrinsic state and personality
2018
Figshare
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Our literature search showed that only 22% of the studies claiming to estimate individual-level associations between state and behaviour actually did so. ...
We conducted a meta-analysis estimating the amount of among-individual variation in behaviour attributable to variation in state. ...
Search terms used in our Web Of Science and Scopus searches. ...
doi:10.6084/m9.figshare.5977747.v1
fatcat:kkyuhdgjundbzfm4tvmxrz75da
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