My research program aims at investigating how early-life stress (e.g. pain, inflammation, clinical treatments) affects the developing brain of very preterm infants, conducting pre-clinical and clinical research. I use an animal model that closely captures critical aspects of what preterm infants are like and what they may experience in the NICU. The use of preclinical models allows mechanistic studies on how exposure to early-life adversity alters the normal trajectory of brain development. This research, in turn, better informs clinical studies in preterm infants and the development of novel treatments to mitigate adverse effects from these exposures.

This work is motivated by my clinical nursing background as a paediatric clinical nurse specialist in acute pain, and builds upon my doctoral training in infant brain reactivity to pain (McGill University/Harvard University/Boston Children’s Hospital) and postdoctoral fellowship in pediatrics/neuroscience at UBC (2012-16), as well as my work as a research scientist at Columbia University in the division of Developmental Neuroscience (2017-18).


The international Perinatal Outcomes in the Pandemic (iPOP) study: protocol [version 1; peer review: 2 approved]
Sarah J. Stock and Helga Zoega and Meredith Brockway and Rachel H. Mulholland and Jessica E. Miller and Jasper V. Been and Rachael Wood and Ishaya I. Abok and Belal Alshaikh and Adejumoke I. Ayede and Fabiana Bacchini and Zulfiqar A. Bhutta and Bronwyn K. Brew and Jeffrey Brook and Clara Calvert and Marsha Campbell-Yeo and Deborah Chan and James Chirombo and Kristin L. Connor and Mandy Daly and Kristjana Einarsdóttir and Ilaria Fantasia and Meredith Franklin and Abigail Fraser and Siri Eldevik Håberg and Lisa Hui and Luis Huicho and Maria C. Magnus and Andrew D. Morris and Livia Nagy-Bonnard and Natasha Nassar and Sylvester Dodzi Nyadanu and Dedeke Iyabode Olabisi and Kirsten R. Palmer and Lars Henning Pedersen and Gavin Pereira and Amy Racine-Poon and Manon Ranger and Tonia Rihs and Christoph Saner and Aziz Sheikh and Emma M. Swift and Lloyd Tooke and Marcelo L. Urquia and Clare Whitehead and Christopher Yilgwan and Natalie Rodriguez and David Burgner and Meghan B. Azad and iPOP Study
DOI: 10.12688/wellcomeopenres.16507.1

Hippocampus, amygdala, and thalamus volumes in very preterm children at 8 years: Neonatal pain and genetic variation
Frontiers in Behavioral Neuroscience
Chau, C.M.Y. and Ranger, M. and Bichin, M. and Park, M.T.M. and Amaral, R.S.C. and Chakravarty, M. and Poskitt, K. and Synnes, A.R. and Miller, S.P. and Grunau, R.E.
DOI: 10.3389/fnbeh.2019.00051

Adverse behavioral changes in adult mice following neonatal repeated exposure to pain and sucrose
Frontiers in Psychology
Ranger, M. and Tremblay, S. and Chau, C.M.Y. and Holsti, L. and Grunau, R.E. and Goldowitz, D.
DOI: 10.3389/fpsyg.2018.02394

Is near infrared spectroscopy valid for the detection of procedural pain in postoperative cardiac surgery intensive care unit adults?
Journal of Near Infrared Spectroscopy
Gélinas, C. and Boitor, M. and Ranger, M. and Johnston, C.C. and De Marchie, M. and Cervero, F. and Choinière, M.
DOI: 10.1177/0967033517730369

Repeated exposure to sucrose for procedural pain in mouse pups leads to long-term widespread brain alterations
Tremblay, S. and Ranger, M. and Chau, C.M.Y. and Ellegood, J. and Lerch, J.P. and Holsti, L. and Goldowitz, D. and Grunau, R.E.
DOI: 10.1097/j.pain.0000000000000961

Neonatal Invasive Procedures Predict Pain Intensity at School Age in Children Born Very Preterm
Clinical Journal of Pain
Valeri, B.O. and Ranger, M. and Chau, C.M.Y. and Cepeda, I.L. and Synnes, A. and Linhares, M.B.M. and Grunau, R.E.
DOI: 10.1097/AJP.0000000000000353

How do babies feel pain?
Ranger, M. and Grunau, R.E.
DOI: 10.7554/eLife.07552

Neonatal Pain and Infection Relate to Smaller Cerebellum in Very Preterm Children at School Age
Journal of Pediatrics
Ranger, M. and Zwicker, J.G. and Chau, C.M.Y. and Park, M.T.M. and Chakravarthy, M.M. and Poskitt, K. and Miller, S.P. and Bjornson, B.H. and Tam, E.W.Y. and Chau, V. and Synnes, A.R. and Grunau, R.E.
DOI: 10.1016/j.jpeds.2015.04.055

Early repetitive pain in preterm infants in relation to the developing brain
Pain management
Ranger, M. and Grunau, R.E.
DOI: 10.2217/pmt.13.61

Innovating in Pain Assessment of the Critically Ill: Exploring Cerebral Near-Infrared Spectroscopy as a Bedside Approach
Pain Management Nursing
Ranger, M. and Gélinas, C.
DOI: 10.1016/j.pmn.2012.03.005

Internalizing behaviours in school-age children born very preterm are predicted by neonatal pain and morphine exposure
European Journal of Pain (United Kingdom)
Ranger, M. and Synnes, A.R. and Vinall, J. and Grunau, R.E.
DOI: 10.1002/j.1532-2149.2013.00431.x

Neonatal pain and comt Val158Met genotype in relation to serotonin transporter (SLC6A4) promoter methylation in very preterm children at school age
Frontiers in Behavioral Neuroscience
Chau, C.M.Y. and Ranger, M. and Sulistyoningrum, D. and Devlin, A.M. and Obertander, T.F. and Grunau, R.E.
DOI: 10.3389/fnbeh.2014.00409

A multidimensional approach to pain assessment in critically ill infants during a painful procedure
Clinical Journal of Pain
Ranger, M. and Celeste Johnston, C. and Rennick, J.E. and Limperopoulos, C. and Heldt, T. and Du Plessis, A.J.
DOI: 10.1097/AJP.0b013e31826dfb13

Neonatal Pain-Related Stress Predicts Cortical Thickness at Age 7 Years in Children Born Very Preterm
Ranger, M. and Chau, C.M.Y. and Garg, A. and Woodward, T.S. and Beg, M.F. and Bjornson, B. and Poskitt, K. and Fitzpatrick, K. and Synnes, A.R. and Miller, S.P. and Grunau, R.E.
DOI: 10.1371/journal.pone.0076702

Maternal Touch and Talk for Invasive Procedures in Infants and Toddlers in the Pediatric Intensive Care Unit
Journal of Pediatric Nursing
Johnston, C.C. and Rennick, J.E. and Filion, F. and Campbell-Yeo, M. and Goulet, C. and Bell, L. and Tucci, M. and Ranger, M.
DOI: 10.1016/j.pedn.2010.12.016

Cerebral near-infrared spectroscopy as a measure of nociceptive evoked activity in critically ill infants
Pain Research and Management
Ranger, M. and Johnston, C.C. and Limperopoulos, C. and Rennick, J.E. and Du Plessis, A.J.

Toward a new approach for the detection of pain in adult patients undergoing cardiac surgery: Near-infrared spectroscopy—A pilot study
Heart and Lung: Journal of Acute and Critical Care
Gélinas, C. and Choinière, M. and Ranger, M. and Denault, A. and Deschamps, A. and Johnston, C.
DOI: 10.1016/j.hrtlng.2009.10.018

Incidence of self-limiting back pain in children following caudal blockade: An exploratory study
Paediatric Anaesthesia
Valois, T. and Otis, A. and Ranger, M. and Muir, J.G.
DOI: 10.1111/j.1460-9592.2010.03365.x

Developing synergy to enhance the impact of nursing intervention research on patient health
Canadian Journal of Nursing Research
Johnston, C. and Cossette, S. and Archer, J. and Ranger, M. and Nahas-Chebli, G.

Interventions used in Emergency Departments (ED) for pain management of simple fractures in children
Cochrane Database of Systematic Reviews
Le May, S. and Fortin, C. and Johnston, C. and Choiniere, M. and Gouin, S. and Paquette, G. and Ranger, M.
DOI: 10.1002/14651858.CD007538

An acute pain service improves postoperative pain management for children undergoing selective dorsal rhizotomy
Paediatric Anaesthesia
Frigon, C. and Loetwiriyakul, W. and Ranger, M. and Otis, A.
DOI: 10.1111/j.1460-9592.2009.03184.x

Controlling bias in complex nursing intervention studies: A checklist
Canadian Journal of Nursing Research
Campbell-Yeo, M. and Ranger, M. and Johnston, C. and Fergusson, D.

Theoretical, Psychometric, and Pragmatic Issues in Pain Measurement
Pain Management Nursing
Gélinas, C. and Loiselle, C.G. and LeMay, S. and Ranger, M. and Bouchard, E. and McCormack, D.
DOI: 10.1016/j.pmn.2007.12.001

Temperament and Pain Response: A Review of the Literature
Pain Management Nursing
Ranger, M. and Campbell-Yeo, M.
DOI: 10.1016/j.pmn.2007.09.005

Current Controversies Regarding Pain Assessment in Neonates
Seminars in Perinatology
Ranger, M. and Johnston, C.C. and Anand, K.J.S.
DOI: 10.1053/j.semperi.2007.07.003

Horner's syndrome following thoracic epidural analgesia in children: A report of two cases
Acute Pain
Valois, T. and Ranger, M. and Raghavendran, S.
DOI: 10.1016/j.acpain.2006.05.001

Continuous axillary block for paediatric trauma patients who failed with PCA therapy
Acute Pain
Ranger, M. and Desparmet, J. and Goujard, E.
DOI: 10.1016/j.acpain.2006.09.001


The role of neuroinflammation in early life pain/sucrose-induced neurodevelopment impairments

Improving access to pediatric symptom management: Engaging and educating health care practitioners to improve lives for children with serious illness in Nepal

Creating a Calmer NICU: Pilot Testing a Robot for Optimizing Brain Development in Preterm Infants in the NICU

Brain-to-brain synchrony in mother-child and father-child dyads: a novel biomarker of brain development


Healthy Starts Catalyst grant (2021-2023)

Sheena Davidson Nursing Research Fund (2020-2022)

Research Group Members

Maria Jose Castro Babbini, Graduate Trainee
Sarah Coutts, Clinical trainee
Fermin Hoq, Graduate trainee
Mary Ibitoye, Graduate Trainee
Rujun Kang, Research Assistant/Lab Technician Level 4
Ruby Willet, Undergraduate volunteer