Johan Isaksson

About me
Publications
Public outreach and news

About me

I am a licensed psychologist and researcher in child- and adolescent
psychiatry. I am affiliated to Center of Neurodevelopmental Disorders at
Karolinska Institutet (KIND) and involved in the project Roots of Autism and
ADHD Twin Study in Sweden (RATSS). In RATSS the causes of autism spectrum
condition and ADHD are explored with the help of monozygotic and dizygotic
(identical and nonidentical) twin pairs with and without neurodevelopmental
disorders.

Articles

Article: APPLIED NEUROPSYCHOLOGY-CHILD. 2024;13(2):137-145

Memory training with the method of loci for children and adolescents with ADHD-A feasibility study.

Ruchkin V; Wallonius M; Odekvist E; Kim S; Isaksson J
Article: YOUTH & SOCIETY. 2024;56(3):579-596

Direct and Indirect Effects of Adolescent Peer Victimization and Mental Health on Academic Achievement in Early Adulthood: A 6-Year Longitudinal Cohort Study

Frick MA; Isaksson J; Vadlin S; Olofsdotter S
Article: JOURNAL OF EATING DISORDERS. 2024;12(1):6

Longitudinal associations between community violence exposure, posttraumatic stress symptoms, and eating disorder symptoms.

Isaksson M; Isaksson J; Schwab-Stone M; Ruchkin V
Article: CHILD AND ADOLESCENT PSYCHIATRY AND MENTAL HEALTH. 2023;17(1):130

Depressive symptoms and anger and aggression in Russian adolescents.

Ruchkin V; Stickley A; Koposov R; Sukhodolsky DG; Isaksson J
Article: NORDIC JOURNAL OF PSYCHIATRY. 2023;77(8):747-753

Changes in patterns of alcohol consumption in young psychiatric outpatients: two comparable samples assessed with 10 years apart.

Lenninger S; Isaksson J; Ramirez A; Ramklint M
Article: BIOLOGY OPEN. 2023;12(10):bio060113

Deficiency of the Heterogeneous Nuclear Ribonucleoprotein U locus leads to delayed hindbrain neurogenesis.

Mastropasqua F; Oksanen M; Soldini C; Alatar S; Arora A; Ballarino R; Molinari M; Agostini F; Poulet A; Watts M; Rabkina I; Becker M; Li D; Anderlid B-M; Isaksson J; Lundin Remnelius K; Moslem M; Jacob Y; Falk A; Crosetto N; Bienko M; Santini E; Borgkvist A; Bölte S; Tammimies K
Article: CHILD PSYCHIATRY & HUMAN DEVELOPMENT. 2023;:1-10

Community Violence Exposure and Eating Disorder Symptoms among Belgian, Russian and US Adolescents: Cross-Country and Gender Perspectives.

Isaksson J; Isaksson M; Stickley A; Vermeiren R; Koposov R; Schwab-Stone M; Ruchkin V
Article: NEUROPHARMACOLOGY. 2023;234:109562

Characterizing the metabolomic signature of attention-deficit hyperactivity disorder in twins.

Swann JR; Diaz Heijtz R; Mayneris-Perxachs J; Arora A; Isaksson J; Bölte S; Tammimies K
Article: CHILD PSYCHIATRY & HUMAN DEVELOPMENT. 2023;54(4):1141-1151

The Role of Comorbid Symptoms in Perceived Stress and Sleep Problems in Adolescent ADHD.

Frick MA; Meyer J; Isaksson J
Article: JOURNAL OF INTERPERSONAL VIOLENCE. 2023;38(13-14):8619-8644

Longitudinal Associations Between Community Violence Exposure and Mental Health Problems in Inner-City Youth: Ethnicity and Gender Perspectives.

Ruchkin V; Isaksson J; Stickley A; Schwab-Stone M
Article: JAMA NETWORK OPEN. 2023;6(6):e2321165

Evaluation of Birth Weight and Neurodevelopmental Conditions Among Monozygotic and Dizygotic Twins.

Isaksson J; Ruchkin V; Ljungström T; Bölte S
Article: ISCIENCE. 2023;26(3):106247

Deciduous tooth biomarkers reveal atypical fetal inflammatory regulation in autism spectrum disorder.

Dumitriu D; Baldwin E; Coenen RJJ; Hammond LA; Peterka DS; Heilbrun L; Frye RE; Palmer R; Norrman HN; Fridell A; Remnelius KL; Isaksson J; Austin C; Curtin P; Bölte S; Arora M
Article: JOURNAL OF CLINICAL MEDICINE. 2023;12(3):1022

Associations between Elemental Metabolic Dynamics and Default Mode Network Functional Connectivity Are Altered in Autism.

Curtin P; Neufeld J; Curtin A; Austin C; Isaksson J; Remnelius KL; Norrman HN; Arora M; Bölte S
Article: NORDIC JOURNAL OF PSYCHIATRY. 2023;77(1):55-64

Brief internet-delivered skills training based on DBT for adults with borderline personality disorder - a feasibility study.

Vasiljevic S; Isaksson M; Wolf-Arehult M; Öster C; Ramklint M; Isaksson J
Article: BMC PSYCHIATRY. 2022;22(1):767

Moderators of long-term treatment outcome when comparing two group interventions for adolescents with ADHD: who benefits more from DBT-based skills training?

Meyer J; Zetterqvist V; Unenge Hallerbäck M; Ramklint M; Isaksson J
Article: JOURNAL OF CLINICAL MEDICINE. 2022;11(23):7154

Elemental Dynamics in Hair Accurately Predict Future Autism Spectrum Disorder Diagnosis: An International Multi-Center Study.

Austin C; Curtin P; Arora M; Reichenberg A; Curtin A; Iwai-Shimada M; Wright RO; Wright RJ; Remnelius KL; Isaksson J; Bölte S; Nakayama SF
Article: CHILD AND ADOLESCENT PSYCHIATRY AND MENTAL HEALTH. 2022;16(1):92

Emotion dysregulation in ADHD and other neurodevelopmental conditions: a co-twin control study.

Astenvald R; Frick MA; Neufeld J; Bölte S; Isaksson J
Article: ADVANCES IN SIMULATION. 2022;7(1):32

Medical students' experiences of working with simulated patients in challenging communication training.

Isaksson J; Krabbe J; Ramklint M
Article: SCHIZOPHRENIA RESEARCH. 2022;248:1-7

Psychotic-like experiences from adolescence to adulthood: A longitudinal study.

Isaksson J; Angenfelt M; Frick MA; Olofsdotter S; Vadlin S
Article: SCIENTIFIC REPORTS. 2022;12(1):13439

Gender dysphoria in twins: a register-based population study.

Karamanis G; Karalexi M; White R; Frisell T; Isaksson J; Skalkidou A; Papadopoulos FC
Article: EUROPEAN CHILD & ADOLESCENT PSYCHIATRY. 2022;31(7):1-13

Evaluation of a structured skills training group for adolescents with attention-deficit/hyperactivity disorder: a randomised controlled trial.

Meyer J; Ramklint M; Hallerbäck MU; Lööf M; Isaksson J
Article: JOURNAL OF AUTISM AND DEVELOPMENTAL DISORDERS. 2022;52(7):3153-3168

Eating Problems in Autistic Females and Males: A Co-twin Control Study.

Lundin Remnélius K; Neufeld J; Isaksson J; Bölte S
Article: CHILD AND ADOLESCENT PSYCHIATRY AND MENTAL HEALTH. 2022;16(1):29

Associated predictors of functional impairment among adolescents with ADHD-a cross-sectional study.

Meyer J; Alaie I; Ramklint M; Isaksson J
Article: MOLECULAR AUTISM. 2022;13(1):8

Nonshared environmental factors in the aetiology of autism and other neurodevelopmental conditions: a monozygotic co-twin control study.

Isaksson J; Ruchkin V; Aho N; Lundin Remnélius K; Marschik PB; Bölte S
Article: JAMA NETWORK OPEN. 2022;5(2):e2146531

Association of Media Coverage on Transgender Health With Referrals to Child and Adolescent Gender Identity Clinics in Sweden.

Indremo M; Jodensvi AC; Arinell H; Isaksson J; Papadopoulos FC
Article: FRONTIERS IN PSYCHIATRY. 2022;13:1008290

Attention-deficit/hyperactivity disorder symptoms, perceived stress, and suicidal ideation during the COVID-19 pandemic.

Stickley A; Shirama A; Inagawa T; Ruchkin V; Koposov R; Isaksson J; Inoue Y; Sumiyoshi T
Article: AUTISM. 2021;25(8):2341-2355

The impact of atypical sensory processing on adaptive functioning within and beyond autism: The role of familial factors.

Neufeld J; Hederos Eriksson L; Hammarsten R; Lundin Remnélius K; Tillmann J; Isaksson J; Bölte S
Article: JOURNAL OF EATING DISORDERS. 2021;9(1):136

Prevalence and early risk factors for bulimia nervosa symptoms in inner-city youth: gender and ethnicity perspectives.

Ruchkin V; Isaksson J; Schwab-Stone M; Stickley A
Article: SCIENTIFIC REPORTS. 2021;11(1):16168

Validity of the Gender Dysphoria diagnosis and incidence trends in Sweden: a nationwide register study.

Indremo M; White R; Frisell T; Cnattingius S; Skalkidou A; Isaksson J; Papadopoulos FC
Article: CHILD AND ADOLESCENT PSYCHIATRY AND MENTAL HEALTH. 2021;15(1):40

Risky sexual behaviour among Russian adolescents: association with internalizing and externalizing symptoms.

Isaksson J; Westermark C; Koposov RA; Stickley A; Ruchkin V
Article: SCANDINAVIAN JOURNAL OF PSYCHOLOGY. 2021;62(4):460-467

SKILLS - A psychoeducational group programme for children with ADHD.

Lantz S; Fornwall C; Lööf M; Isaksson J
Article: AUTISM. 2021;25(5):1422-1432

A co-twin-control study of altered sensory processing in autism.

Neufeld J; Taylor MJ; Lundin Remnélius K; Isaksson J; Lichtenstein P; Bölte S
Article: SCIENTIFIC REPORTS. 2021;11(1):9690

Neuroticism is positively associated with leptin/adiponectin ratio, leptin and IL-6 in young adults.

Syk M; Isaksson J; Rasmusson AJ; Ekselius L; Cunningham JL
Article: AUTISM. 2021;25(4):1020-1035

Functional gender differences in autism: An international, multidisciplinary expert survey using the International Classification of Functioning, Disability, and Health model.

Lundin K; Mahdi S; Isaksson J; Bölte S
Article: FRONTIERS IN PSYCHOLOGY. 2021;12:575100

What's the Link Between Theory of Mind and Other Cognitive Abilities - A Co-twin Control Design of Neurodevelopmental Disorders.

Isaksson J; Neufeld J; Bölte S
Article: FRONTIERS IN PUBLIC HEALTH. 2021;9:692402

Community Violence Exposure and School Functioning in Youth: Cross-Country and Gender Perspectives.

Koposov R; Isaksson J; Vermeiren R; Schwab-Stone M; Stickley A; Ruchkin V
Article: JOURNAL OF AFFECTIVE DISORDERS. 2020;277:825-830

Physical activity in early adolescence predicts depressive symptoms 3 years later: A community-based study.

Isaksson J; Selinus EN; Åslund C; Nilsson KW
Article: SCANDINAVIAN JOURNAL OF PSYCHOLOGY. 2020;61(5):671-678

You are not alone - adolescents' experiences of participation in a structured skills training group for ADHD.

Meyer J; Öster C; Ramklint M; Isaksson J
Article: JOURNAL OF ATTENTION DISORDERS. 2020;24(11):1565-1569

Unseen and Stressed? Gender Differences in Parent and Teacher Ratings of ADHD Symptoms and Associations With Perceived Stress in Children With ADHD.

Isaksson J; Ruchkin V; Lindblad F
Article: JOURNAL OF TRAUMATIC STRESS. 2020;33(4):552-563

The Role of Gender in the Associations Among Posttraumatic Stress Symptoms, Anger, and Aggression in Russian Adolescents.

Isaksson J; Sukhodolsky DG; Koposov R; Stickley A; Ruchkin V
Article: JOURNAL OF ATTENTION DISORDERS. 2020;24(7):1070-1077

Comorbidity and Behavior Characteristics of Russian Male Juvenile Delinquents With ADHD and Conduct Disorder.

Lindblad F; Isaksson J; Heiskala V; Koposov R; Ruchkin V
Article: CHILD PSYCHIATRY & HUMAN DEVELOPMENT. 2020;51(2):231-238

Risk and Protective Factors for Problematic Drinking in Early Adolescence: A Systematic Approach.

Isaksson J; Schwab-Stone M; Stickley A; Ruchkin V
Article: JOURNAL OF CHILD PSYCHOLOGY AND PSYCHIATRY. 2020;61(4):470-479

Global and local visual processing in autism - a co-twin-control study.

Neufeld J; Hagström A; Van't Westeinde A; Lundin K; Cauvet É; Willfors C; Isaksson J; Lichtenstein P; Bölte S
Article: NORDIC JOURNAL OF PSYCHIATRY. 2020;74(2):123-130

How do adolescents with ADHD perceive and experience stress? An interview study.

Öster C; Ramklint M; Meyer J; Isaksson J
Article: SUBSTANCE USE & MISUSE. 2020;55(3):358-366

Risk Factors Associated with Alcohol Use in Early Adolescence among American Inner-City Youth: A Longitudinal Study.

Isaksson J; Sjöblom S; Schwab-Stone M; Stickley A; Ruchkin V
Article: MOLECULAR GENETICS & GENOMIC MEDICINE. 2020;8(1):e1013

Variable neurodevelopmental and morphological phenotypes of carriers with 12q12 duplications.

Myers L; Blyth M; Moradkhani K; Hranilović D; Polesie S; Isaksson J; Nordgren A; Bucan M; Vincent M; Bölte S; Anderlid B-M; Tammimies K
Article: SCHIZOPHRENIA RESEARCH. 2020;215:190-196

Psychotic-like experiences during early adolescence predict symptoms of depression, anxiety, and conduct problems three years later: A community-based study.

Isaksson J; Vadlin S; Olofsdotter S; Åslund C; Nilsson KW
Article: AUTISM. 2019;23(8):1948-1956

Familial confounding on the ability to read minds: A co-twin control study.

Isaksson J; Taylor MJ; Lundin K; Neufeld J; Bölte S
Article: TRANSLATIONAL PSYCHIATRY. 2019;9(1):238

Dynamical properties of elemental metabolism distinguish attention deficit hyperactivity disorder from autism spectrum disorder.

Austin C; Curtin P; Curtin A; Gennings C; Arora M; Tammimies K; Isaksson J; Willfors C; Bölte S
Article: JOURNAL OF AUTISM AND DEVELOPMENTAL DISORDERS. 2019;49(7):2838-2848

Social Cognition in Autism and Other Neurodevelopmental Disorders: A Co-twin Control Study.

Isaksson J; Van't Westeinde A; Cauvet É; Kuja-Halkola R; Lundin K; Neufeld J; Willfors C; Bölte S
Article: BMC PSYCHIATRY. 2019;19(1):171

Evaluation of a structured skills training group for adolescents with attention deficit/hyperactivity disorder (ADHD) - study protocol of a randomised controlled trial.

Meyer J; Ramklint M; Hallerbäck MU; Lööf M; Isaksson J
Article: EUROPEAN PSYCHIATRY. 2018;47:42-48

The danger of being inattentive - ADHD symptoms and risky sexual behaviour in Russian adolescents.

Isaksson J; Stickley A; Koposov R; Ruchkin V
Article: BMC PSYCHIATRY. 2017;17(1):344

Early adversity and psychiatric symptoms - a prospective study on Ethiopian mothers and their children.

Isaksson J; Deyessa N; Berhane Y; Högberg U
Article: JOURNAL OF AUTISM AND DEVELOPMENTAL DISORDERS. 2017;47(8):2621-2627

Brief Report: Association Between Autism Spectrum Disorder, Gastrointestinal Problems and Perinatal Risk Factors Within Sibling Pairs.

Isaksson J; Pettersson E; Kostrzewa E; Diaz Heijtz R; Bölte S
Article: MOLECULAR AUTISM. 2017;8:27

The EU-AIMS Longitudinal European Autism Project (LEAP): clinical characterisation.

Charman T; Loth E; Tillmann J; Crawley D; Wooldridge C; Goyard D; Ahmad J; Auyeung B; Ambrosino S; Banaschewski T; Baron-Cohen S; Baumeister S; Beckmann C; Bölte S; Bourgeron T; Bours C; Brammer M; Brandeis D; Brogna C; de Bruijn Y; Chakrabarti B; Cornelissen I; Acqua FD; Dumas G; Durston S; Ecker C; Faulkner J; Frouin V; Garcés P; Ham L; Hayward H; Hipp J; Holt RJ; Isaksson J; Johnson MH; Jones EJH; Kundu P; Lai M-C; D'ardhuy XL; Lombardo MV; Lythgoe DJ; Mandl R; Mason L; Meyer-Lindenberg A; Moessnang C; Mueller N; O'Dwyer L; Oldehinkel M; Oranje B; Pandina G; Persico AM; Ruggeri B; Ruigrok ANV; Sabet J; Sacco R; Cáceres ASJ; Simonoff E; Toro R; Tost H; Waldman J; Williams SCR; Zwiers MP; Spooren W; Murphy DGM; Buitelaar JK
Article: MOLECULAR AUTISM. 2017;8:24

The EU-AIMS Longitudinal European Autism Project (LEAP): design and methodologies to identify and validate stratification biomarkers for autism spectrum disorders.

Loth E; Charman T; Mason L; Tillmann J; Jones EJH; Wooldridge C; Ahmad J; Auyeung B; Brogna C; Ambrosino S; Banaschewski T; Baron-Cohen S; Baumeister S; Beckmann C; Brammer M; Brandeis D; Bölte S; Bourgeron T; Bours C; de Bruijn Y; Chakrabarti B; Crawley D; Cornelissen I; Acqua FD; Dumas G; Durston S; Ecker C; Faulkner J; Frouin V; Garces P; Goyard D; Hayward H; Ham LM; Hipp J; Holt RJ; Johnson MH; Isaksson J; Kundu P; Lai M-C; D'ardhuy XL; Lombardo MV; Lythgoe DJ; Mandl R; Meyer-Lindenberg A; Moessnang C; Mueller N; O'Dwyer L; Oldehinkel M; Oranje B; Pandina G; Persico AM; Ruigrok ANV; Ruggeri B; Sabet J; Sacco R; Cáceres ASJ; Simonoff E; Toro R; Tost H; Waldman J; Williams SCR; Zwiers MP; Spooren W; Murphy DGM; Buitelaar JK
Article: EUROPEAN ARCHIVES OF PSYCHIATRY AND CLINICAL NEUROSCIENCE. 2016;266(8):771-773

Exploring possible association between DβH genotype (C1021T), early onset of conduct disorder and psychopathic traits in juvenile delinquents.

Isaksson J; Grigorenko EL; Oreland L; Af Klinteberg B; Koposov RA; Ruchkin V
Article: PSYCHONEUROENDOCRINOLOGY. 2016;72:196-204

Associations between the FKBP5 haplotype, exposure to violence and anxiety in females.

Isaksson J; Comasco E; Åslund C; Rehn M; Tuvblad C; Andershed H; Nilsson KW
Article: PSYCHIATRY RESEARCH. 2016;240:376-380

Associations between psychiatric symptoms and cortisol levels in Nicaraguan young school-age children.

Isaksson J; Högberg U; Valladares E; Lindblad F
Article: JOURNAL OF CHILD SEXUAL ABUSE. 2016;25(3):276-292

Does Information About Neuropsychiatric Diagnoses Influence Evaluation of Child Sexual Abuse Allegations?

Lainpelto K; Isaksson J; Lindblad F
Article: JOURNAL OF PSYCHIATRIC RESEARCH. 2015;71:97-102

High maternal cortisol levels during pregnancy are associated with more psychiatric symptoms in offspring at age of nine - A prospective study from Nicaragua.

Isaksson J; Lindblad F; Valladares E; Högberg U
Article: ACTA PAEDIATRICA. 2015;104(9):910-915

Polymorphisms in the FK506 binding protein 5 gene are associated with attention deficit hyperactivity disorder and diurnal cortisol levels.

Isaksson J; Allen M; Nilsson KW; Lindblad F
Article: PSYCHIATRY RESEARCH. 2015;226(2-3):515-516

Fasting blood glucose and HbA1c in children with ADHD.

Lindblad F; Eickhoff M; Forslund AH; Isaksson J; Gustafsson J
Article: EUROPEAN CHILD & ADOLESCENT PSYCHIATRY. 2015;24(2):153-161

The Pressure-Activation-Stress scale in relation to ADHD and cortisol.

Isaksson J; Nilsson KW; Lindblad F
Article: PSYCHIATRY RESEARCH. 2013;209(3):740-741

Effects of stimulants and atomoxetine on cortisol levels in children with ADHD.

Isaksson J; Hogmark Å; Nilsson KW; Lindblad F
Article: EUROPEAN CHILD & ADOLESCENT PSYCHIATRY. 2013;22(7):425-432

Early psychosocial adversity and cortisol levels in children with attention-deficit/hyperactivity disorder.

Isaksson J; Nilsson KW; Lindblad F
Article: JOURNAL OF PSYCHIATRIC RESEARCH. 2012;46(11):1398-1405

Cortisol levels in children with attention-deficit/hyperactivity disorder.

Isaksson J; Nilsson KW; Nyberg F; Hogmark A; Lindblad F
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Corrigendum: CHILD AND ADOLESCENT PSYCHIATRY AND MENTAL HEALTH. 2024;18(1):26

Correction: Emotion dysregulation in ADHD and other neurodevelopmental conditions: a co-twin control study.

Astenvald R; Frick MA; Neufeld J; Bölte S; Isaksson J
Review: CURRENT OPINION IN PSYCHIATRY. 2021;34(6):600-607

Psychological and social risk factors associated with development of psychopathology, controlling for biological influence.

Isaksson J; Zetterqvist V; Ramklint M
Editorial comment: ACTA PAEDIATRICA. 2019;108(6):1165-1166

Own-gender bias in school staff's recognition of children with ADHD.

Ghosh E; Nilsson KW; Isaksson J
Letter: MOLECULAR AUTISM. 2018;9:26

EU-AIMS Longitudinal European Autism Project (LEAP): the autism twin cohort.

Isaksson J; Tammimies K; Neufeld J; Cauvet É; Lundin K; Buitelaar JK; Loth E; Murphy DGM; Spooren W; Bölte S; EU-AIMS LEAP group

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