Trial reportThe Journal of neuroscience : the official journal of the Society for Neuroscience2006
Cortical pain responses in human infants.
Trial report in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 121 papers, 5 of them syntheses that pooled 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.
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.
Who cites it
121 citing papers in PubMed, 5 syntheses or guidelines pooled it, 447 citations in OpenAlex.
- Acupuncture for procedural pain in newborn infants.The Cochrane database of systematic reviews · 2025Pooled it
- Sucrose analgesia for heel-lance procedures in neonates.The Cochrane database of systematic reviews · 2023Pooled it
- Methodological Issues in the Study of the Development of Pain Responsivity in Preterm Neonates: A Systematic Review.International journal of environmental research and public health · 2020Pooled it
- Sucrose for analgesia in newborn infants undergoing painful procedures.The Cochrane database of systematic reviews · 2016Pooled it
- [Pharmacodynamic and pharmacokinetic characteristics of pain therapy in neonates: Austrian interdisciplinary recommendations on pediatric perioperative pain management].Schmerz (Berlin, Germany) · 2014Guideline
- Effects of fentanyl and sucrose on pain in retinopathy examinations with pain scale, near-infrared spectroscopy, and ultrasonography: a randomized trial.World journal of pediatrics : WJP · 2023Trial
- Cortical hemodynamic activity and pain perception during insertion of feeding tubes in preterm neonates: a randomized controlled cross-over trial.Journal of perinatology : official journal of the California Perinatal Association · 2022Trial
- Oxidative Stress as a Physiological Pain Response in Full-Term Newborns.Oxidative medicine and cellular longevity · 2017Trial
- A multidimensional approach to pain assessment in critically ill infants during a painful procedure.The Clinical journal of pain · 2013Trial
- Is it painful or not? Discriminant validity of the Behavioral Indicators of Infant Pain (BIIP) scale.The Clinical journal of pain · 2008Trial
- Behavioral responses to pain are heightened after clustered care in preterm infants born between 30 and 32 weeks gestational age.The Clinical journal of painTrial
- Fetal Pain Perception:Annals of the Child Neurology Society · 2026Review
- Application of Intelligent Neonatal Pain Assessment Tools Based on Multimodal Data Fusion: A Systematic Review.Journal of pain research · 2026Review
- Knowledge and practices regarding postoperative neonatal pain assessment among healthcare professionals in Kinshasa: a multicenter cross-sectional survey.Frontiers in pain research (Lausanne, Switzerland) · 2026Article
- Objective monitoring of acute pain and nociception in anaesthesia and intensive care: evidence and applications.Anaesthesiology intensive therapy · 2025Review
- Prematurity is a risk factor of disorders of gut-brain interaction in adults: A case-control study.World journal of clinical pediatrics · 2025Article
- The Awakening of the Newborn Human Infant and the Emergence of Consciousness.Acta paediatrica (Oslo, Norway : 1992) · 2025Review
- Prefrontal Cortical Near-Infrared Spectroscopy for Acute Pain Assessment in Infants: A Feasibility Study.Journal of clinical medicine · 2025Article
- Brain health in preterm infants: importance of early-life pain and analgesia exposure.Pediatric research · 2024Review
- A comparison of the effect of procedural pain on cerebral oxygen saturation between late preterm and term infants.Journal of perinatology : official journal of the California Perinatal Association · 2024Article
61 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 2 institutions in 1 country.
Funding
Abstract
Despite the recent increase in our understanding of the development of pain processing, it is still not known whether premature infants are capable of processing pain at a cortical level. In this study, changes in cerebral oxygenation over the somatosensory cortex were measured in response to noxious stimulation using real-time near-infrared spectroscopy in 18 infants aged between 25 and 45 weeks postmenstrual age. The noxious stimuli were heel lances performed for routine blood sampling; no blood tests were performed solely for the purpose of the study. Noxious stimulation produced a clear cortical response, measured as an increase in total hemoglobin concentration [HbT] in the contralateral somatosensory cortex, from 25 weeks (mean Delta[HbT] = 7.74 micromol/L; SE, 1.10). Cortical responses were significantly greater in awake compared with sleeping infants, with a mean difference of 6.63 micromol/L [95% confidence interval (CI) limits: 2.35, 10.91 micromol/L; mean age, 35.2 weeks]. In awake infants, the response in the contralateral somatosensory cortex increased with age (regression coefficient, 0.698 micromol/L/week; 95% CI limits: 0.132, 1.265 micromol/L/week) and the latency decreased with age (regression coefficient, -0.9861 micromol/L/week; 95% CI limits: -1.5361, -0.4361 micromol/L/week; age range, 25-38 weeks). The response was modality specific because no response was detected after non-noxious stimulation of the heel, even when accompanied by reflex withdrawal of the foot. We conclude that noxious information is transmitted to the preterm infant cortex from 25 weeks, highlighting the potential for both higher-level pain processing and pain-induced plasticity in the human brain from a very early age.
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Registered trials
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.