Diana Morcom

Diana is a Clinical and Educational and Developmental Psychologist with over 10 years' experience working in government, not for profit and educational settings as well as successfully managing her own private practice.  She graduated from the University of South Australia with First Class Honours in 2005 and completed her Master of Psychology (Forensic) in 2008. Diana has specialised knowledge in assessment and therapeutic intervention with children and adults who have experienced chronic trauma due to her extensive experience in working within the child protection system. A certified diagnostician, Diana also has significant experience and interest in working with children, adults and their respective families with Autism Spectrum Disorder. She has a special interest in working with girls and women on the autism spectrum. She is passionate about relationships and supporting families by working collaboratively with others to develop strategies for parenting, behavioural and educational concerns.

Diana utilises an eclectic range of modalities when working with families and is particularly skilled in cognitive behavioural therapy, social skills training, attachment therapy, play therapy and acceptance and commitment therapy.


Lisa Chisholm


Lisa is a Clinical Psychologist who provides a range of psychological services to individuals, families, schools and organisations.  Lisa works in a collaborative and non-judgemental manner and is passionate about working with children, adolescents and adults to improve their wellbeing in a way that is sustainable for them.  Lisa also has a particular interest with working with young people and adults who have experienced trauma.

Lisa completed her Honours in Psychology and Master of Psychology (Clinical) at Flinders University. She has also received specialist training in Family Systems Therapy, Acceptance and Commitment Therapy, Narrative Therapy, and Child and Adolescent Psychology.  She is registered with the Psychology Board of Australia and is a member of the Australian Psychological Society.  Lisa regularly works with clients referred through a variety of pathways, including Medicare, the NDIS and private clients.

Lisa regularly provides psychological services to students at schools who have partnered with Psychology SA.  In addition she frequently consults with families, teachers, support staff and other allied health professionals to improve their ability to support their children.  Lisa has previous experience working in child protection, family reunification, and youth homelessness settings.

Lisa regularly conducts comprehensive psychoeducational assessments for students experiencing learning difficulties, and to diagnose conditions such as intellectual disability, specific learning disorders and ADHD.

Lisa is also available to deliver workshops and seminars on a wide range of topics to a range of audiences.  Lisa’s recent workshops and seminars have included ways for young people to improve their mental health, dementia knowledge and assistance for carers, identification and management of executive functioning issues and ways for teachers to support their students’ social and emotional wellbeing.




Haidee Baker

Haidee Baker

B.A., B.Sc., Grad. Dip. Ed., MA (School Psychology)

Haidee has been part of the Psychology SA team since February 2018.  Haidee works with children, adolescents and adults who present with a wide range of concerns.  She has a particular interest in working with adolescents and young adults, new mothers, and clients from Indigenous, immigrant and refugee backgrounds.  Haidee has received specialised training and supervision in Acceptance and Commitment Therapy, Perinatal Psychology, Child & Adolescent Psychology, and School Psychology.

Haidee is available to conduct comprehensive psychoeducational assessments for students experiencing learning difficulties, and to diagnose conditions such as intellectual disability, specific learning disorders and ADHD.  She has a particular interest in cross-cultural assessment.

Haidee is also available to deliver workshops and seminars on a wide range of topics to a range of audiences.  Haidee’s recent workshops and seminars have included the following topics: general mental health, stress management, mindfulness, positive psychology and positive ageing, dementia, Executive Functioning, the importance of social connection, finding meaning and purpose in life, self-care and wellness, Acceptance and Commitment Therapy, and internet gaming disorder.

Haidee is registered with the Psychology Board of Australia and the Teachers’ Registration Board, and is a member of the Australian Psychological Society.  She accepts clients through Medicare (including a bulk-billing service), the NDIS, and private clients. 

Julie Dini

Psychologist - Specialises in children and can also see adults.

Julie is a Registered Psychologist who has been working with children and their families for 20 years. She is registered with the Psychology Board of Australia and is a member of the College of Educational and Developmental Psychologists (APS). Julie has worked as a psychologist within the public, non- government and education sectors. In the public sector Julie worked in Psychologist roles in Disability Services for many years and has experience in the assessment and diagnosis of children with global developmental delay and intellectual disability. She also has significant experience in complex behavioural assessment and positive behaviour support for children and adults with Intellectual Disability and Autism Spectrum Disorder. Julie has also worked within schools and preschools providing assessment and consultancy especially for children with disabilities and she is able to carry out psycho-educational assessments.

Julie is experienced in the assessment and treatment of children with a wide range of emotional and behavioural difficulties including: anxiety and panic attacks; emotional regulation; attachment disorders; depression; fears, phobias and post-traumatic stress; social skills; feeding and toileting difficulties; and problem sexual behaviour. Julie has significant experience working with children with disabilities who have experienced trauma. 

Dr Astrid Birgden

Dr Astrid Birgden PhD - Clinical and Forensic Psychologist

Dr Birgden has over 30 years experience working in disability services, correctional services and the courts in SA, VIC and NSW. She first worked in disability services in the mid-1980s in Adelaide before moving to Melbourne in 1990 to establish the first of four Behaviour Interventions Support Team for clients with behaviours of concern. She then worked with forensic disability clients who had engaged in dangerous and anti-social behaviours. Since becoming a consultant in 2011, and in addition to designing and implementing Positive Behaviour Support Plans, Dr Birgden developed (and in 2018 revised) the Victorian Positive Practice Framework and has been engaged in initiating a competence framework and resource toolkit for behaviour support specialists for the NDIS.

Dr Birgden works with older adolescents and adults and has a particular interest in clients who are at risk of involvement with the criminal justice system. She has completed a Masters in Mental Disability Law through New York Law School and is published in the areas of intellectual disability, offender rehabilitation and human rights.

Clare Holmes

Clare Holmes

B. Psych (Hons), PhD (Clinical Psychology)

Clare is a clinical psychologist registered with the Psychology Board of Australia. She has worked across the public and non-government sectors supporting children, adolescents and adults with disabilities and other complex needs.

Clare takes a collaborative approach to therapy, recognising that each individual brings their own strengths and expertise. She draws upon these strengths in conjunction with strategies from Cognitive Behaviour Therapy, Acceptance and Commitment Therapy and Schema Therapy to help people with social skills, emotion regulation, anxiety, depression and other life stressors.

Clare completed a PhD in Clinical Psychology at Flinders University. Her research explored autism in adulthood, focusing on changes in presentation across the lifespan and issues of most concern to adults. She has experience in autism intervention and assessment and so also has an interest in working with people who have autism, particularly adults, to manage their symptoms and to support their wellbeing.