Evidence map›Paper›PMID 25086297›Full record

ArticleJournal of neuroscience methods2015

Multifractal analysis of information processing in hippocampal neural ensembles during working memory under Δ⁹-tetrahydrocannabinol administration.

Dustin Fetterhoff, Ioan Opris, Sean L Simpson, Sam A Deadwyler, Robert E Hampson, Robert A Kraft

Abstract read
In one paragraph

Article in Journal of neuroscience methods, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.3field-weighted citation impact, top 22% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Broadband Dynamics Rather than Frequency-Specific Rhythms Underlie Prediction Error in the Primate Auditory Cortex.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
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  5. Adolescent ΔFrontiers in psychiatry · 2020
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  6. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Dustin FetterhoffNeuroscience Program, Wake Forest School of Medicine, Winston-Salem, NC, USA; Dept. of Physiology & Pharmacology, Wake Forest School of Medicine, Winston-Salem, NC, USA. Electronic address: dfetterh@wakehealth.edu.
Ioan OprisDept. of Physiology & Pharmacology, Wake Forest School of Medicine, Winston-Salem, NC, USA.
Sean L SimpsonDept. of Biostatistical Sciences, Wake Forest School of Medicine, Winston-Salem, NC, USA.
Sam A DeadwylerDept. of Physiology & Pharmacology, Wake Forest School of Medicine, Winston-Salem, NC, USA.
Robert E HampsonDept. of Physiology & Pharmacology, Wake Forest School of Medicine, Winston-Salem, NC, USA.
Robert A KraftDept. of Biomedical Engineering, Wake Forest School of Medicine, Winston-Salem, NC, USA.
Wake Forest University · US

Funding

TROPANE EVALUATION AND GENERAL SCIENTIFIC SERVICES COREP50DA006634 · NIDA · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI CHILDERS, STEVEN R · 1991 to 2019
$30.8M
Electrophysiological Assessment of Cannabinois ReceptorsR01DA007625 · NIDA · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI DEADWYLER, SAMUEL A. · 1992 to 2012
$3.2M
Statistical Methods for Whole-Brain Connectivety NetworksK25EB012236 · NIBIB · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI SIMPSON, SEAN L · 2012 to 2016
$796k
NIBIB NIH HHS K25 EB012236NIBIB NIH HHS K25 EB012236-01A1NIDA NIH HHS DA006634NIDA NIH HHS DA07625NIDA NIH HHS P50 DA006634NIDA NIH HHS R01 DA007625
6 · The paper itself

Abstract

backgroundMultifractal analysis quantifies the time-scale-invariant properties in data by describing the structure of variability over time. By applying this analysis to hippocampal interspike interval sequences recorded during performance of a working memory task, a measure of long-range temporal correlations and multifractal dynamics can reveal single neuron correlates of information processing. NEW

methodWavelet leaders-based multifractal analysis (WLMA) was applied to hippocampal interspike intervals recorded during a working memory task. WLMA can be used to identify neurons likely to exhibit information processing relevant to operation of brain-computer interfaces and nonlinear neuronal models.

resultsNeurons involved in memory processing ("Functional Cell Types" or FCTs) showed a greater degree of multifractal firing properties than neurons without task-relevant firing characteristics. In addition, previously unidentified FCTs were revealed because multifractal analysis suggested further functional classification. The cannabinoid type-1 receptor (CB1R) partial agonist, tetrahydrocannabinol (THC), selectively reduced multifractal dynamics in FCT neurons compared to non-FCT neurons. COMPARISON WITH EXISTING

methodsWLMA is an objective tool for quantifying the memory-correlated complexity represented by FCTs that reveals additional information compared to classification of FCTs using traditional z-scores to identify neuronal correlates of behavioral events.

conclusionz-Score-based FCT classification provides limited information about the dynamical range of neuronal activity characterized by WLMA. Increased complexity, as measured with multifractal analysis, may be a marker of functional involvement in memory processing. The level of multifractal attributes can be used to differentially emphasize neural signals to improve computational models and algorithms underlying brain-computer interfaces.

Indexed as

Electronic Data ProcessingAction PotentialsAlgorithmsAnalysis of VarianceAnimalsComputer SimulationDose-Response Relationship, DrugDronabinolHippocampusMemory, Short-TermModels, NeurologicalNeuronsNonlinear DynamicsPsychotropic DrugsRatsRats, Long-EvansDronabinolPsychotropic DrugsCannabinoidCognitionDelayed non-match to sampleElectrophysiologyWavelet leadersWorking memory

Identifiers

PMID25086297
PMCPMC4312266
OpenAlexW2067669511

What OpenQuestion holds

Textmetadata
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.