Evidence map›Paper›PMID 25929747›Full record

ArticlePain medicine (Malden, Mass.)2015

Nonlinear Effects of Noxious Thermal Stimulation and Working Memory Demands on Subjective Pain Perception.

John A Sturgeon, Meghan M Tieu, Laura E Jastrzab, Rebecca McCue, Vanisha Gandhi, Sean C Mackey

Abstract read
In one paragraph

Article in Pain medicine (Malden, Mass.), 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
–field-weighted citation impact
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.

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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.

John A SturgeonDepartment of Anesthesiology, Perioperative and Pain Medicine, Stanford Systems Neuroscience and Pain Laboratory, Stanford University, Palo Alto, California, USA.
Meghan M TieuDepartment of Anesthesiology, Perioperative and Pain Medicine, Stanford Systems Neuroscience and Pain Laboratory, Stanford University, Palo Alto, California, USA.
Laura E JastrzabDepartment of Neurology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.
Rebecca McCueDepartment of Anesthesiology, Perioperative and Pain Medicine, Stanford Systems Neuroscience and Pain Laboratory, Stanford University, Palo Alto, California, USA.
Vanisha GandhiNative American Health Center, Lutheran Medical Center, San Francisco, California, USA.
Sean C MackeyDepartment of Anesthesiology, Perioperative and Pain Medicine, Stanford Systems Neuroscience and Pain Laboratory, Stanford University, Palo Alto, California, USA.

Funding

Neuroimaging and Mentoring in Translational Pain ResearchK24DA029262 · NIDA · STANFORD UNIVERSITY · PI MACKEY, SEAN C · 2010 to 2019
$1.9M
NIDA NIH HHS K24 DA029262NIDA NIH HHS K24DA029262
6 · The paper itself

Abstract

objectiveA bidirectional relationship between working memory (WM) and acute pain has long been assumed, but equivocal evidence exists regarding this relationship. This study characterized the relationship between WM and acute pain processing in healthy individuals using an adapted Sternberg WM task.

designParticipants completed a Sternberg task while receiving noxious thermal stimulation. Participants received a pseudorandom presentation of four different temperatures (baseline temperatures and individually determined low-, medium-, and high-temperature stimuli) and four levels of Sternberg task difficulty (0-, 3-, 6-, and 9-letter strings). SUBJECTS: Twenty-eight healthy participants were recruited from Stanford University and the surrounding community to complete this study.

resultsA nonlinear interaction between intensity of thermal stimulation and difficulty of the Sternberg task was noted. Increased cognitive load from the Sternberg task resulted in increased perception of pain in low-intensity thermal stimulation but suppressed pain perception in high-intensity thermal stimulation. Thermal stimulation had no significant effect on participants' response time or accuracy on the Sternberg task regardless of intensity level.

conclusionsPain perception appears to decrease as a function of WM load only for sufficiently noxious stimuli. However, increasing noxious stimuli did not affect cognitive performance. These complex relationships may reflect a shared cognitive space that can become "overloaded" with input of multiple stimuli of sufficient intensity.

Indexed as

Memory, Short-TermAcute PainAdolescentAdultCognitionFemaleHot TemperatureHumansMaleNeuropsychological TestsNonlinear DynamicsPain MeasurementPain PerceptionReaction TimeYoung AdultExperimental PainSternberg TaskWorking Memory

Identifiers

PMID25929747
PMCPMC9444236

What OpenQuestion holds

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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.