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Dr

Julian Simmons

Senior Research Fellow
Melbourne School of Psychological Sciences
Childhood & Adolescence
Microbiome
Endocrinology
Adversity
Mental Health
Development
Trauma
Humans
Psychology
Julian Simmons's Profile Picture
Dr

Julian Simmons

 
Division
Medicine, Dentistry and Health Sciences
 
Primary Interest
Development and mental health
Julian Simmons's Profile Picture
Dr

Julian Simmons

 
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Julian's  Short Profile
 

Projects

Displaying the 6 most recent projects from 6 for Julian Simmons.

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The impact of female sex hormones on neurodevelopment

2022 - 2026
Active
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NEURAL MECHANISMS OF ANXIETY ACROSS DEVELOPMENT AND SEX

Anxiety disorders are extremely debilitating, and are most likely to have their onset in young people. Understanding the biological mechanis..

2019 - 2022
Completed
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PUBERTAL TIMING, BRAIN DEVELOPMENT AND MENTAL HEALTH IN ADOLESCENCE

Early timing of puberty is known to be associated with future mental health problems. This study aims to investigate whether children who go..

2015 - 2020
Completed
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LEX34498 - MAPPING THE STATE OF OUR MICROBES

2019 - 2020
Completed
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Do family environments influence children's brain development during the transition to adolescence?

This project will investigate whether brain development during this period is affected by parenting behaviours, which will ultimately inform..

2013 - 2017
Completed
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Do pubertal and stress hormones mediate the relationship between adverse environments and poor mental health and behavioural outcomes in adolescence? A transpacific collaboration.

2014 - 2014
Completed

6

Projects

Project Types

4

Research Grant

1

Internal Research Grant

1

Research Contracts

Scholarly Works

Displaying the 10 most recent scholarly works from 145 for Julian Simmons.

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Estradiol variability is associated with brain structure in early adolescent females.

Isabel S Zwaan, Kim Felmingham, Nandi Vijayakumar, George Patton, Lisa Mundy, Michelle L Byrne, Julian Simmons, Sarah Whittle

Journal article  |  2022  |  Psychoneuroendocrinology

One-third of adolescents are diagnosed with a psychiatric disorder by age 16, with female adolescents twice as likely to experienc..

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The effects of puberty and its hormones on subcortical brain development.

Nandita Vijayakumar, George Youssef, Nicholas B Allen, Vicki Anderson, Daryl Efron, Lisa Mundy, George Patton, Julian G Simmons, Tim Silk, Sarah Whittle

Journal article  |  2021  |  Compr Psychoneuroendocrinol

Puberty triggers a period of structural "re-organization" in the brain, when rising hormone levels act via receptors to influence ..

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The ratio of morning cortisol to CRP prospectively predicts first-onset depression in at-risk adolescents

ER Landau, MB Raniti, M Blake, JM Waloszek, L Blake, JG Simmons, O Schwartz, G Murray, J Trinder, NB Allen, ML Byrne

Journal article  |  2021  |  SOCIAL SCIENCE & MEDICINE

RATIONALE: Early-onset adolescent depression is related to poor prognosis and a range of psychiatric and medical comorbidities lat..

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The impact of posttraumatic stress disorder on event-related potentials in affective and non-affective paradigms: A systematic review with meta-analysis

Lisa N Miller, Julian G Simmons, Sarah Whittle, David Forbes, Kim Felmingham

Journal article  |  2021  |  NEUROSCIENCE AND BIOBEHAVIORAL REVIEWS

Post-traumatic stress disorder (PTSD) is associated with neural processing deficits affecting early automatic and later conscious ..

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The gut microbiota in anxiety and depression - A systematic review

Carra A Simpson, Carmela Diaz-Arteche, Djamila Eliby, Orli S Schwartz, Julian G Simmons, Caitlin SM Cowan

Journal article  |  2021  |  CLINICAL PSYCHOLOGY REVIEW

Growing evidence indicates the community of microorganisms throughout the gastrointestinal tract, (i.e., gut microbiota), is assoc..

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A longitudinal analysis of puberty-related cortical development

Nandita Vijayakumar, George J Youssef, Nicholas B Allen, Vicki Anderson, Daryl Efron, Philip Hazell, Lisa Mundy, Jan M Nicholson, George Patton, Marc L Seal, Julian G Simmons, Sarah Whittle, Tim Silk

Journal article  |  2021  |  NEUROIMAGE

The brain undergoes extensive structural changes during adolescence, concurrent to puberty-related physical and hormonal changes. ..

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Associations between early life stress and anterior pituitary gland volume development - A novel index of long-term hypothalamic-pituitary-adrenal axis functioning

Carmela Diaz-Arteche, Julian G Simmons, Despina E Ganella, Orli Schwartz, Jee Hyun Kim, Paige Farrow, Sarah Whittle

Journal article  |  2021  |  DEVELOPMENTAL PSYCHOBIOLOGY

Previous research has established associations between early life stress (ELS) and altered pituitary gland volume (PGV) growth dur..

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Bugs and Brains, the Gut and Mental Health Study: a mixed-methods study investigating microbiota composition and function in anxiety, depression and irritable bowel syndrome

Carra A Simpson, Orli S Schwartz, Djamila Eliby, Catherine A Butler, Katherine Huang, Neil O'Brien-Simpson, Bridget L Callaghan, Stuart G Dashper, Paul R Gooley, Sarah Whittle, Nick Haslam, Julian G Simmons

Journal article  |  2021  |  BMJ OPEN

INTRODUCTION: Research has highlighted relationships between the micro-organisms that inhabit our gastrointestinal tract (oral and..

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Associations between early life stress and anterior pituitary gland volume development during late childhood

Paige Farrow, Julian G Simmons, Elena Pozzi, Carmela Diaz-Arteche, Sally Richmond, Katherine Bray, Orli Schwartz, Sarah Whittle

Journal article  |  2020  |  PSYCHONEUROENDOCRINOLOGY

Early Life Stress (ELS) is thought to influence Hypothalamic-Pituitary-Adrenal-Axis (HPAA) functioning, contributing to an increas..

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Adrenarcheal hormone-related development of white matter during late childhood

Marjolein EA Barendse, Julian G Simmons, Robert E Smith, Marc L Seal, Sarah Whittle

Journal article  |  2020  |  NEUROIMAGE

The aim of the current study was to longitudinally examine how adrenarcheal hormones influence the development of white matter str..

145

Scholarly Works

Keyword Analysis

Public Health (excl. Specific Population Health)
Clinical Sciences
Health Services and Systems
Specific Population Health (excl. Indigenous Health)
Neurosciences
Biological Psychology
Clinical Health
Other Psychology
Expanding Knowledge
Applied and Developmental Psychology

News

Displaying the 6 most recent news articles from 6 for Julian Simmons.

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The microbiota and our mental health

Carra Simpson, Djamila Eliby, Samantha Byrne, Julian Simmons

When we think about the biology of mental health, our mind usually goes straight to the brain. After all, this is the organ responsible for..

July 18, 2021
pursuit Article
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How to maintain a healthy biome in a COVID-19 world

Djamila Eliby, Yianna Zhang, Julian Simmons

This year, we have all grappled with the now essential measures of reducing the risk of being infected with the SARS-CoV-2 coronavirus that..

December 8, 2020
pursuit Article
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Are you taking care of the microbes in your mouth?

Andre Mu, Julian Simmons, Samantha Byrne

Oral microbiomes are extraordinarily complex. Our mouths contain different types of microorganisms, but most are bacteria. It might not sou..

February 12, 2020
pursuit Article
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Growing up in disadvantaged areas may affect teens' brains, but good parenting can help

Sarah Whittle, Julian G. Simmons, Nick Allen

New research has found growing up in a disadvantaged neighbourhood may have negative effects on children’s brain development. But for males..

June 22, 2017
conversation Article
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Hair samples may help predict mental illness in children

Julian Simmons

Researchers have discovered the potential to use hair samples to investigate whether a young person is at risk of developing mental illness..

January 6, 2016
pursuit Article
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Here's another reason kids don't belong in detention: trauma changes growing brains

Julian G. Simmons, Meg Dennison, Nick Haslam

A bill that would release the 112 children in immigration detention in Australia will soon go before the House of Representatives. The bill..

November 29, 2015
conversation Article

6

News Articles

Honours, Awards and Fellowships

2014

Dyason Travel Fellowship
2009

AAAS/Science Program for Excellence in Science Award
2006

International Travel Scholarship

Australian Research Alliance for Children and Youth (ARACY) ARC/NHMRC Research Network
2005

Summer Institute Fellowship

Positive Psychology Center (PA, USA)
2016

Melbourne Neurosciences Institute Research Fellowship

5

Awards

Credentials

Positions

Senior Research Fellow

Melbourne School of Psychological Sciences

Committee Member, Low To Negligible Risk (Lnr) Medical And Health Sciences

Human Research Ethics Committee, Office of Research, Ethics & Integrity (OREI)

Committee Member, Ria Representative

Research Ethics and Strategy Committee (REISC)

Research Integrity Advisor (Ria)

Office for Research Ethics and Integrity, The University of Melbourne

Education

Doctor of Philosophy

University of Melbourne

Post Graduate Diploma in Psychology

University of Melbourne

Bachelor of Science

University of Melbourne

Links

International Linkages

University of Cape Town

South Africa

University of Oregon

United States of America

University of Pittsburgh

United States of America