The Helios Team

Our team of experienced, caring professionals are here to help you. Our psychologists are experienced in many modalities of mental wellness. Please contact Gretta Little to discuss which therapist may be best suited to your needs.

Gretta Little

Director; BA (hons), M.Psych (Clin), MAPS

Clinical Psychologist

Gretta is a clinical psychologist. Gretta approaches each client as an individual, tailoring interventions within their unique history and circumstances. Gretta works with children, adolescents, adults and older adults using cognitive behavioural, acceptance and commitment and schema therapies as well as applied behavioural analysis. Gretta has vast experience with clients across the lifespan.

Courtney Barton

Registered Psychologist

Courtney is a registered psychologist with clinical experience working with children, adolescence, adults and families. She has experience with a variety of presenting concerns including depression, anxiety disorders, interpersonal difficulties, low self-esteem, grief and loss, trauma, stress and anger management and emotional regulation difficulties. Courtney adopts a person-centred approach with a focus on the therapeutic alliance to foster a safe space to support the client to share and explore their presenting concerns. She also works from a strengths-based, values approach to support the client to move towards living a more meaningful life. She draws upon a variety of evidence-based psychological interventions including Cognitive Behavioural Therapy, Acceptance and Commitment Therapy, Dialectical Behaviour Informed Therapy, Solution Focused Therapy and Mindfulness to support the client in achieving their goals.

Joseph De Cotta


Joe De Cotta is a Psychologist and has spent 20 years working in the community services sector as well as within various maximum security prisons in Western Australia. He has experience working in diverse Forensic areas such as family violence, drug rehabilitation, emotional management and sexual offending.

Typically, Joe works from a strength based perspective which focuses on cultivating an individual’s own resilience and inner strength as a means of achieving wellness. In an increasingly secular world, Joe is comfortable and proficient at working within an individual’s spiritual, religious or cultural belief system. He has a professional interest in the intersection between Psychology and Spirituality and is inspired by the transpersonal movement. During the counselling process Joe adopts a values based approach and utilises Acceptance and Commitment Therapy, Cognitive Behavioral Therapy, Emotions Focused Therapy and Mindfulness/Somatic Based Therapies.

Dr Jemma Dessauvagie

PhD(Psychology), MPsych(Professional), BPsych(Hons.), Assoc MAPS


Jemma is a registered psychologist with experience working with adults, adolescents, and children. She has had clinical experience working with a wide range of presenting concerns, including mood and anxiety symptoms, interpersonal difficulties, identity and/or adjustment stress, grief and loss, substance misuse and trauma. Jemma has a keen interest in the wellbeing of elite sports men and women of all ages, from grass roots level through to the professional, and particularly the transition period out of sport. Jemma works hard to create a warm, safe, and non-judgemental space for clients to explore their unique challenges and struggles. She utilises a person-centered approach to support clients’ wellbeing and facilitate growth. She draws upon a variety of approaches, including CBT, ACT, Solution Focused Therapy, Mindfulness, Motivational Interviewing, and Schema Therapy approaches to assist clients’ to identify and draw on their own strengths to progress towards their goals. Jemma is one of our clinicians who support our psychologists with peer supervision.

Siew Lan Ho

Clinical Psychologist

Siew Lan is a registered Clinical Psychologist working full-time in private practice. She completed her Master of Applied Psychology (Clinical) at Murdoch University in 2014. Siew Lan works mainly with adults and older adolescents (16 +), with a special interest in working with interpersonal difficulties, relational issues, complex trauma and personality disorders. She primarily practices from a trauma-informed care framework and has a process-oriented approach based on Psychodynamic Psychotherapy and is guided by Attachment-based approach. When appropriate, Siew Lan also incorporates other evidence-based interventions such as Sensorimotor Psychotherapy and Schema Therapy. Siew Lan is committed to providing a non-judgmental and supportive space for her patients. Recognizing that each individual is unique, Siew Lan offers a tailored approach to each patient, where they can feel heard and empowered, and to build on their emotional resilience as they navigate their personal challenges in their lives.

Linda Tanner

Clinical Psychologist

Linda is a Clinical Psychologist who works with children, adolescents, adults and families on a range of mental health concerns including anxiety disorders, trauma (PTSD), depression, interpersonal issues and perinatal mental health. Linda takes a contextual and family systems approach to tailoring interventions to address the concerns and needs of each client within their particular circumstances.  Linda works with children and families in relation to behavioural issues, adjustment and trauma with a focus on attachment relationships and responsive parenting practices. With adult clients, Linda provides evidence-based treatment drawing upon Contextual Behavioural Sciences such as Acceptance and Commitment Therapy (ACT) and behavioural analysis as well as Schema Therapy and EMDR

Kara Travouillon

B.A (Psych), GradDipSci (Psych), PostGradDip App Psych

Kara is a patient, compassionate and understanding Psychologist with an aim to provide a safe space to enable therapeutic change. She is enthusiastic and dedicated to fostering positive relationships with her clients. Kara is committed to working collaboratively with you, and the type of therapy used in her sessions is always dependent on your presenting issues. Kara welcomes any feedback and encourages client involvement to shape the approach of the therapy and ensure you get what you want from your counselling sessions. You are likely to find Kara unassuming, kind and caring. Kara is comfortable working across all age groups, from children to adults and couples. She is available to support you to deal with a wide range of difficulties and concerns, including depression, anxiety, childhood trauma, relationships and workplace difficulties. Her main therapeutic approaches are Cognitive Behavioural Therapy, Acceptance and Commitment Therapy, Schema Therapy and Mindfulness. Kara is also a qualified Circle of Security Parenting Program Facilitator. Kara is one of our clinicians who support our psychologists with peer supervision


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