Positions

Selected Publications

Academic Article

Year Title Altmetric
2021 The effect of early autism intervention on parental sense of efficacy in a randomized trial depends on the initial level of parent stress 2021
2021 Interleukin-8 and lower severity of depression in females, but not males, with treatment-resistant depressionJournal of Psychiatric Research.  140:350-356. 2021
2021 Sex Differences in the Association of Cigarette Craving with Insula StructureInternational Journal of Neuropsychopharmacology.  24:624-633. 2021
2021 A Multisite Randomized Controlled Trial Comparing the Effects of Intervention Intensity and Intervention Style on Outcomes for Young Children With AutismJournal of the American Academy of Child and Adolescent Psychiatry.  60:710-722. 2021
2021 Disturbed Eating and Body Dysmorphic Symptoms in a Young Adult Sample Are Separable Constructs That Each Show a Mixture of DistributionsAssessment.  28:890-898. 2021
2021 Predicting suicidal behavior and self-harm after general hospitalization of adults with serious mental illnessJournal of Psychiatric Research.  136:515-521. 2021
2021 Changes in inflammation are related to depression and amount of aerobic exercise in first episode schizophrenia 2021
2021 Modular cognitive behavioral therapy for autism-related symptoms in children: A randomized controlled trial.Journal of Consulting and Clinical Psychology.  89:110-125. 2021
2021 Accounting for symptom heterogeneity can improve neuroimaging models of antidepressant response after electroconvulsive therapyHuman Brain Mapping2021
2021 Integrating Mental Health in Safety-net Primary Care: A Five-year Observational Study on Visits in a County Health SystemMedical Care2021
2021 Ketamine's modulation of cerebro-cerebellar circuitry during response inhibition in major depressionNeuroImage: Clinical.  32. 2021
2021 Subcallosal Cingulate Structural Connectivity Differs in Responders and Nonresponders to Electroconvulsive TherapyBiological Psychiatry: Cognitive Neuroscience and Neuroimaging.  6:10-19. 2021
2021 The Factor Structure of Social Cognition in Schizophrenia: A Focus on Replication With Confirmatory Factor Analysis and Machine LearningClinical Psychological Science.  9:38-52. 2021
2020 Interaction of Treatment Intensity and Autism Severity on Frequency and Maturity of Spontaneous Communication in Toddlers with Autism Spectrum Disorder 2020
2020 Inflammation and depression treatment response to electroconvulsive therapy: Sex-specific role of interleukin-8Brain, Behavior, and Immunity.  89:59-66. 2020
2020 Reciprocal Copy Number Variations at 22q11.2 Produce Distinct and Convergent Neurobehavioral Impairments Relevant for Schizophrenia and Autism Spectrum DisorderBiological Psychiatry.  88:260-272. 2020
2020 Neural Subtypes of Euthymic Bipolar I Disorder Characterized by Emotion Regulation CircuitryBiological Psychiatry: Cognitive Neuroscience and Neuroimaging.  5:591-600. 2020
2020 The Autism Biomarkers Consortium for Clinical Trials (ABC-CT): Scientific Context, Study Design, and Progress Toward Biomarker QualificationFrontiers in Integrative Neuroscience.  14. 2020
2020 Biomarker Acquisition and Quality Control for Multi-Site Studies: The Autism Biomarkers Consortium for Clinical TrialsFrontiers in Integrative Neuroscience.  13. 2020
2020 Virtual reality assessment of functional capacity in the early course of schizophrenia: Associations with cognitive performance and daily functioning 2020
2020 Effects of Serial Ketamine Infusions on Corticolimbic Functional Connectivity in Major DepressionBiological Psychiatry: Cognitive Neuroscience and Neuroimaging2020
2020 Hippocampal subregions and networks linked with antidepressant response to electroconvulsive therapyMolecular Psychiatry2020
2019 Comparing tenant and neighborhood characteristics of the VA’s project-vs. Tenant-based supportive housing program in Los Angeles countyJournal of Health Care for the Poor and Underserved.  30:1373-1393. 2019
2019 A Multisite Randomized Controlled Two-Phase Trial of the Early Start Denver Model Compared to Treatment as UsualJournal of the American Academy of Child and Adolescent Psychiatry.  58:853-865. 2019
2019 A protocol to develop and study the effectiveness and implementation of social skills training that improves supported housing retention for persons with serious mental illnessContemporary Clinical Trials Communications.  14. 2019
2019 Variations in Hippocampal White Matter Diffusivity Differentiate Response to Electroconvulsive Therapy in Major DepressionBiological Psychiatry: Cognitive Neuroscience and Neuroimaging.  4:300-309. 2019
2019 A randomized controlled trial comparing a “bottom-up” and “top-down” approach to cognitive training in schizophreniaJournal of Psychiatric Research.  109:118-125. 2019
2019 Implementing Patient-Reported Outcomes to Improve the Quality of Care for Weight of Patients with SchizophreniaJournal of Behavioral Health Services and Research.  46:129-139. 2019
2019 A dose-finding study of oxytocin using neurophysiological measures of social processingNeuropsychopharmacology.  44:289-294. 2019
2019 Determinants of community integration among formerly homeless veterans who received supportive housingFrontiers in Psychiatry.  10. 2019
2019 Motivational and Cognitive Correlates of Community Integration in Homeless Veterans Entering a Permanent Supported Housing Program 2019
2018 Participation in related services and behavioral, social, and adaptive symptom presentation in young children with autism spectrum disorder 2018
2018 Self-injurious behaviours in children and adults with autism spectrum disorder (ASD)Journal of Intellectual Disability Research.  62:1030-1042. 2018
2018 Volume of the Human Hippocampus and Clinical Response Following Electroconvulsive TherapyBiological Psychiatry.  84:574-581. 2018
2018 Functional connectivity of the raphe nuclei: Link to tobacco withdrawal in smokersInternational Journal of Neuropsychopharmacology.  21:800-808. 2018
2018 Cognitive deficit in methamphetamine users relative to childhood academic performance: Link to cortical thicknessNeuropsychopharmacology.  43:1745-1752. 2018
2018 Axis II personality disorders are linked to an adverse course of bipolar disorderJournal of Nervous and Mental Disease.  206:469-472. 2018
2018 Enhanced switching and familial susceptibility for psychosisBrain and Behavior.  8. 2018
2018 Prevalence of axis II comorbidities in bipolar disorder: relationship to mood state 2018
2018 Children's and Mothers' cardiovascular reactivity to a standardized laboratory stressor: Unique relations with maternal anxiety and overcontrolEmotion.  18:369-385. 2018
2018 Fronto-temporal connectivity predicts ECT outcome in major depressionFrontiers in Psychiatry.  9. 2018
2017 Clinical Factors Associated with Successful Discharge from Assertive Community TreatmentCommunity Mental Health Journal.  53:916-921. 2017
2017 Glutamate in pediatric obsessive-compulsive disorder and response to cognitive-behavioral therapy: Randomized clinical trialNeuropsychopharmacology.  42:2414-2422. 2017
2017 The effect of bilateral transcranial direct current stimulation on early auditory processing in schizophrenia: a preliminary studyJournal of Neural Transmission.  124:1145-1149. 2017
2017 Therapeutic lifestyle changes: Impact on weight, quality of life, and psychiatric symptoms in veterans with mental illness 2017
2017 Reduced-Nicotine Cigarettes in Young Smokers: Impact of Nicotine Metabolism on Nicotine Dose EffectsNeuropsychopharmacology.  42:1610-1618. 2017
2017 Using a systems-based risk score approach to examine genetic predisposition to Novelty Seeking 2017
2017 A Randomized, Controlled Multisite Study of Behavioral Interventions for Veterans with Mental Illness and Antipsychotic Medication-Associated ObesityJournal of General Internal Medicine.  32:32-39. 2017
2017 Improving Weight in People with Serious Mental Illness: The Effectiveness of Computerized Services with Peer CoachesJournal of General Internal Medicine.  32:48-55. 2017
2017 Combination extended smoking cessation treatment plus home visits for smokers with schizophrenia: A randomized controlled trialNicotine and Tobacco Research.  19:68-76. 2017
2017 Modeling deficits from early auditory information processing to psychosocial functioning in schizophreniaJAMA Psychiatry.  74:37-46. 2017
2016 Mixed depression in bipolar disorder: Prevalence rate and clinical correlates during naturalistic follow-up in the stanley bipolar networkAmerican Journal of Psychiatry.  173:1015-1023. 2016
2016 Symptom profiles of autism spectrum disorder in tuberous sclerosis complexNeurology.  87:766-772. 2016
2016 Cognitive Effects of Stimulant, Guanfacine, and Combined Treatment in Child and Adolescent Attention-Deficit/Hyperactivity DisorderJournal of the American Academy of Child and Adolescent Psychiatry.  55:667-673. 2016
2016 Combined Stimulant and Guanfacine Administration in Attention-Deficit/Hyperactivity Disorder: A Controlled, Comparative StudyJournal of the American Academy of Child and Adolescent Psychiatry.  55:657-666.e1. 2016
2016 Isolating active ingredients in a parent-mediated social communication intervention for toddlers with autism spectrum disorderJournal of Child Psychology and Psychiatry.  57:606-613. 2016
2016 A randomized placebo-controlled lovastatin trial for neurobehavioral function in neurofibromatosis IAnnals of Clinical and Translational Neurology.  3:266-279. 2016
2016 Behavioral interventions for antipsychotic medicationassociated obesity: A randomized, controlled clinical trialJournal of Clinical Psychiatry.  77:e183-e189. 2016
2016 Functional Genetic Variation in Dopamine Signaling Moderates Prefrontal Cortical Activity during Risky Decision MakingNeuropsychopharmacology.  41:695-703. 2016
2016 Levothyroxine effects on depressive symptoms and limbic glucose metabolism in bipolar disorder: A randomized, placebo-controlled positron emission tomography studyMolecular Psychiatry.  21:229-236. 2016
2015 Randomized comparative efficacy study of parent-mediated interventions for toddlers with autismJournal of Consulting and Clinical Psychology.  83:554-563. 2015
2015 Factors affecting exits from homelessness among persons with serious mental illness and substance use disordersJournal of Clinical Psychiatry.  76:e469-e476. 2015
2015 Long-acting injectable risperidone for relapse prevention and control of breakthrough symptoms after a recent first episode of schizophrenia a randomized clinical trialJAMA Psychiatry.  72:822-829. 2015
2015 Meta-analysis of face processing event-related potentials in schizophreniaBiological Psychiatry.  77:116-126. 2015
2014 Exploring facial emotion perception in schizophrenia using transcranial magnetic stimulation and spatial filteringJournal of Psychiatric Research.  58:102-108. 2014
2014 Randomized controlled trial of parental responsiveness intervention for toddlers at high risk for autismInfant Behavior and Development.  37:711-721. 2014
2014 Childhood maltreatment and amygdala connectivity in methamphetamine dependence: A pilot studyBrain and Behavior.  4:867-876. 2014
2014 Cigarette exposure, dependence, and craving are related to insula thickness in young adult smokersNeuropsychopharmacology.  39:1816-1822. 2014
2014 Development of the MMPI-2 cognitive complaints scale as an embedded measure of symptom validityBrain Injury.  28:357-363. 2014
2014 Impairment in local and global processing and set-shifting in body dysmorphic disorderJournal of Psychiatric Research.  57:41-50. 2014
2014 Risky decision making, prefrontal cortex, and mesocorticolimbic functional connectivity in methamphetamine dependenceJAMA Psychiatry.  71:812-820. 2014
2014 Social cognition and functional outcome in schizophrenia: The moderating role of cardiac vagal toneJournal of Abnormal Psychology.  123:764-770. 2014
2014 Two to Ten Years: Developmental Trajectories of Joint Attention in Children With ASD Who Received Targeted Social Communication Interventions 2014
2013 High-throughput cognitive assessment using BrainTest.org: Examining cognitive control in a family cohortBrain and Behavior.  3:552-561. 2013
2013 Assessing temporal processing of facial emotion perception with transcranial magnetic stimulationBrain and Behavior.  3:263-272. 2013
2013 Add-on treatment of benzoate for schizophrenia: A randomized, double-blind, placebo-controlled trial of D-amino acid oxidase inhibitorJAMA Psychiatry.  70:1267-1275. 2013
2013 Predictive value of morphological features in patients with autism versus normal controlsJournal of Autism and Developmental Disorders.  43:147-155. 2013
2012 From perception to functional outcome in schizophrenia: Modeling the role of ability and motivationArchives of General Psychiatry.  69:1216-1224. 2012
2012 An electrophysiological investigation of attentional blink in schizophrenia: Separating perceptual and attentional processesInternational Journal of Psychophysiology.  86:108-113. 2012
2012 Disentangling early sensory information processing deficits in schizophrenia 2012
2012 Gray-matter volume in methamphetamine dependence: Cigarette smoking and changes with abstinence from methamphetamineDrug and Alcohol Dependence.  125:230-238. 2012
2012 Educational attainment is not a good proxy for cognitive function in methamphetamine dependenceDrug and Alcohol Dependence.  123:249-254. 2012
2012 Longitudinal follow-up of children with autism receiving targeted interventions on joint attention and playJournal of the American Academy of Child and Adolescent Psychiatry.  51:487-495. 2012
2011 Poor response to sertraline in methamphetamine dependence is associated with sustained craving for methamphetamineDrug and Alcohol Dependence.  118:500-503. 2011
2011 Efficacy and specificity of Social Cognitive Skills Training for outpatients with psychotic disordersJournal of Psychiatric Research.  45:1113-1122. 2011
2011 A prospective, naturalistic, blinded study of early neurobehavioral outcomes for infants following prenatal antidepressant exposureJournal of Clinical Psychiatry.  72:1002-1007. 2011
2011 Effect of modafinil on learning and task-related brain activity in methamphetamine-dependent and healthy individualsNeuropsychopharmacology.  36:950-959. 2011
2011 Risperidone nonadherence and return of positive symptoms in the early course of schizophreniaAmerican Journal of Psychiatry.  168:286-292. 2011
2011 Prevalence and correlates of eating disorders in 875 patients with bipolar disorderJournal of Affective Disorders.  128:191-198. 2011
2011 Acute modafinil effects on attention and inhibitory control in methamphetamine-dependent humans 2011
2011 Morphological features in children with autism spectrum disorders: A matched case-control studyJournal of Autism and Developmental Disorders.  41:23-31. 2011
2010 Amygdala astrocyte reduction in subjects with major depressive disorder but not bipolar disorder 2010
2010 Gender and depressive symptoms in 711 patients with bipolar disorder evaluated prospectively in the Stanley Foundation Bipolar Treatment Outcome NetworkAmerican Journal of Psychiatry.  167:708-715. 2010
2010 Genetic, personality, and environmental predictors of drug use in adolescentsJournal of Substance Abuse Treatment.  38:178-190. 2010
2009 A Candidate Gene Analysis of Methylphenidate Response in Attention-Deficit/Hyperactivity DisorderJournal of the American Academy of Child and Adolescent Psychiatry.  48:1155-1164. 2009
2009 Drs. Frye and Helleman replyAmerican Journal of Psychiatry.  166:830. 2009
2009 Prefrontal brain morphology and executive function in healthy and depressed elderlyInternational Journal of Geriatric Psychiatry.  24:459-468. 2009
2009 Impact of antidepressant continuation after acute positive or partial treatment response for bipolar depression: A blinded, randomized studyJournal of Clinical Psychiatry.  70:450-457. 2009
2009 Correlates of treatment-emergent mania associated with antidepressant treatment in bipolar depressionAmerican Journal of Psychiatry.  166:164-172. 2009
2009 Biophysical correlates of cognition among depressed and nondepressed type 2 diabetic patientsDiabetes Care.  32:48-50. 2009
2009 Focal subcortical biophysical abnormalities in patients diagnosed with type 2 diabetes and depressionArchives of General Psychiatry.  66:324-330. 2009
2009 Seeing the trees despite the forest: Applying recursive partitioning to the evaluation of drug treatment retentionJournal of Substance Abuse Treatment.  36:59-64. 2009
2008 Saliva Estriol Levels in Women with and Without Prenatal Antidepressant TreatmentBiological Psychiatry.  64:533-537. 2008
2008 Executive Function and MRI Prefrontal Volumes Among Healthy Older AdultsNeuropsychology.  22:626-637. 2008
2007 Effects of antenatal depression and antidepressant treatment on gestational age at birth and risk of preterm birthAmerican Journal of Psychiatry.  164:1206-1213. 2007
2007 A 24-week, randomized, controlled trial of adjunctive sibutramine versus topiramate in the treatment of weight gain in overweight or obese patients with bipolar disorders 2007

Education And Training

  • Doctor of Philosophy in Psychology, University of California Los Angeles 2006
  • Full Name

  • Gerhard Hellemann