Better Thinking

In this episode of Better Thinking, Nesh Nikolic speaks with Lisa Anne Williams about how our emotions are shaped by social experiences and the powerful, adaptive functions of positive social emotions like pride and gratitude. Dr. Lisa A. Williams is a social psychologist whose research examines the dynamics between emotional experience and social interaction. Much of her research focuses on how positive emotions that arise in the context of social interactions function at the interpersonal, interpersonal, intergroup, and societal levels. Lisa is currently Professor in the School of Psychology and Associate Dean, Equity Diversity and Inclusion, Faculty of Science, at UNSW Sydney. Episode link at https://neshnikolic.com/podcast/lisa-williamsSee omnystudio.com/listener for privacy information.

In this episode of Better Thinking, Nesh Nikolic speaks with Nik Steffens about how identity, connection, and purpose shape not only individual outcomes but also drive collective success within organizations. Niklas Steffens is Associate Professor and Director of the Centre for Business and Organisational Psychology (CBOP) in UQ's School of Psychology. He lived, worked, and studied psychology in Germany and Spain and completed his PhD in the UK before working at The University of Queensland (Australia). Nik conducts fundamental and applied research to uncover psychological drivers that make groups and organisations fairer, more motivating, more effective, and healthier. His expertise lies in social identity and team work processes in social and organisational contexts including leadership and followership, motivation and creativity, and health and well-being. He uses diverse methods to understand people and organisations including experimental and intervention studies, field and survey research, archival methods, psychometric scale development, and systematic reviews and meta-analysis. Episode link at https://neshnikolic.com/podcast/nik-steffensSee omnystudio.com/listener for privacy information.

In this episode of Better Thinking, Nesh Nikolic speaks with Dr. Zhi Yi Ong about the neurobiology of food intake, exploring how gut-brain interactions shape eating behavior and its connection to addiction. Zhi Yi Ong is a Senior Lecturer and ARC Future Fellow at the UNSW School of Psychology. She completed her PhD in Biomedical Science at the University of South Australia and later undertook postdoctoral training in the Department of Psychology at the University of Pennsylvania. Zhi Yi's research focuses on the neurobiological mechanisms of feeding behaviors. Using multiple neuroscience approaches in animal models, she investigates how gut signals interact with brain circuits to regulate these behaviors. Additionally, she also examines how environmental factors and current treatments influence the neural systems that control appetite. Episode link at  See omnystudio.com/listener for privacy information.

In this episode of Better Thinking, Nesh Nikolic speaks with Lana Tikhomirov about the intersection of AI and human decision-making, exploring its ethical concerns, cognitive challenges, and growing role in high-stakes fields like healthcare. Lana Tikhomirov is an AI safety researcher at the Australian Institute for Machine Learning, where she focuses on developing ethical, human-centered artificial intelligence systems for medical decision-making. Her interdisciplinary PhD bridges cognitive science, bioethics, and AI safety, examining a core question: How do humans make decisions using AI algorithms—and where should we draw the ethical line when replacing human judgment with machine logic? Lana’s work addresses the nuanced challenges that emerge when advanced deep learning systems—often opaque and difficult to interpret—are integrated into high-risk, real-world environments. As these technologies become increasingly common in critical domains, understanding their influence on human cognition and decision-making has never been more urgent. She is committed to advancing responsible and safe AI, and her research contributes to national policy and ethical guidelines for AI development and implementation in Australia. Episode link at https://neshnikolic.com/podcast/lana-tikhomirovSee omnystudio.com/listener for privacy information.

In this episode of Better Thinking, Nesh Nikolic speaks with Dr Simon Byrne about evolving approaches to anxiety treatment—including CBT and ACT—and how evidence-based models can better support children’s mental health. Dr Simon Byrne is a Lecturer at the University of Queensland (UQ) since 2021. He completed a PhD/Masters of Clinical Psychology in child anxiety at Macquarie University. He has held postdoctoral positions at Yale Child Study Centre, as well as Westmead Hospital Psychiatry Department and Royal Prince Alfred Hospital in Sydney. His research has focused on 1) the unconventional use of psychiatric drugs to treat mental disorders in children, and 2) treatments for anxiety. He has a particular interest in the use of exposure therapy (“facing your fears”) to treat anxiety. He also teaches into UQ’s clinical psychology program and has conducted research into the use of simulations to teach ethics. Episode link at https://neshnikolic.com/podcast/simon-byrneSee omnystudio.com/listener for privacy information.

In this episode of Better Thinking, Nesh Nikolic speaks with Dr Poppy Watson about compulsive reward-seeking behavior, commonly seen in drug or gambling addiction, but also in more subtle forms that influence our everyday actions and habits. The research interests of Dr Poppy Watson lie at the intersection of motivation, attention and choice behaviour. A fundamental question in human psychology is whether we are totally in control of the choices we make and the extent to which we rely on environmental cues to guide our decisions. She is interested in the conflict that arises between our ‘good intentions’ (for example to eat healthily or avoid alcohol) and our innate tendency to be attracted by things that signal reward such as the McDonald’s golden M or the beer logo. She uses methods such as eye tracking and neuroimaging to examine this interplay between biased cognitions and habits on the one hand and explicit motivation on the other. She tries to understand the mechanisms that contribute to unwanted patterns of behaviour in both healthy and clinical populations. She is also involved in intervention projects (to improve treatment outcomes for patients and measuring the efficacy of these interventions) and is interested more generally in health psychology and behaviour change. Episode link at https://neshnikolic.com/podcast/poppy-watsonSee omnystudio.com/listener for privacy information.

In this episode of Better Thinking, Nesh Nikolic speaks with Dr Amy Peden about the global drowning crisis, the key risk factors involved, and what can be done to reduce these tragic incidents. Dr Amy Peden is a Senior Research Fellow in the School of Population Health at the University of New South Wales (UNSW) in Sydney Australia, where she is also the co-founder of the UNSW Beach Safety Research Group. She maintains an honorary Senior Research Fellow position with Royal Life Saving Society – Australia and an adjunct Senior Lecturer role with James Cook University in Queensland. As a drowning prevention researcher and advocate, Dr Peden provides technical expertise to the World Health Organization, collaborates on research with government, industry and the community and regularly appears in the media. Episode link at https://neshnikolic.com/podcast/amy-pedenSee omnystudio.com/listener for privacy information.

In this episode of Better Thinking, Nesh Nikolic speaks with Dr. Robyn Walser about using Acceptance and Commitment Therapy (ACT) to help individuals navigate and heal from trauma. Robyn D Walser, PhD is an internationally recognized clinical psychologist, educator, and author. She is the Director of Trauma and Life Consultation and Psychology Services, Assistant Professor at the University of California, Berkeley, and Director of Research at Bay Area Trauma Recovery Clinical Services. Dr. Walser has contributed significantly to the dissemination of Acceptance and Commitment Therapy (ACT) and holds a pivotal role in implementing ACT in one of the US’s largest national healthcare system. She also works at the National Center for PTSD, where her work focus is on trauma recovery, depression, and moral injury. A writer and scholar, Dr. Walser has co-authored nine influential books on ACT, including the widely respected The Heart of ACT: Developing a Flexible, Process-Based, and Client-Centered Practice Using Acceptance and Commitment Therapy. Her research and clinical expertise have made her a sought-after voice in advancing the application of ACT to address a variety of complex psychological challenges. Since 1997, Dr. Walser has led ACT workshops worldwide, bringing her deep understanding and passion for process-based, experiential learning to therapists and clinicians. Known for her compassionate and client-centered approach, Dr. Walser’s teaching emphasizes the integration of evidence-based practices with human connection and flexibility. Whether through her books, articles, or live training, Dr. Walser continues to influence the evolution of ACT and inspire professionals in their pursuit of effective, transformative therapy. Episode link at https://neshnikolic.com/podcast/robyn-walserSee omnystudio.com/listener for privacy information.

In this episode of Better Thinking, Nesh Nikolic speaks with Ahu Kocak about her experience in developing suicide assessment and prevention strategies in correctional settings. Ahu Kocak is endorsed in Forensic Psychology with over 14 years experience in prison, court and private practice settings. She holds a Bachelor of Science Psychology, Masters of Psychology (Forensic), Graduate Certificate in Law and Masters of Terrorism and Security Studies. She is a full member of the Australian Psychology Society (APS) and Fellow of the College of Forensic Psychologists. Outside of her expertise in the assessment and treatment of high risk offenders, Ahu often uses Schema Therapy, Acceptance and Commitment Therapy, Cognitive Behavioural Therapy, Applied Behavioural Analysis, Exposure Therapy for a range of disorders. Ahu has developed group programs for Schema Therapy in correctional settings. Ahu is an AHPRA Board approved clinical supervisor and is available to supervise 4 +2, 5+1 and Masters programme pathways. She is also endorsed to supervise forensic registrars and secondary supervision of other registrar pathways. She is fluent in both English and Turkish. Episode link at https://neshnikolic.com/podcast/ahu-kocakSee omnystudio.com/listener for privacy information.

In this episode of Better Thinking, Nesh Nikolic speaks with Ben Newell about the power of behavioral science and the role that psychology can play in motivating individuals and societies to take meaningful action on climate change. Ben Newell is Professor of Behavioural Science in the School of Psychology at UNSW Sydney, and Director of the  UNSW Institute for Climate Risk & Response (ICRR). His research focuses on the cognitive processes underlying judgment, choice and decision-making and the application of this knowledge to environmental, medical, financial and forensic contexts. His role in the new Institute is to drive an interdisciplinary research agenda bringing together expertise from behavioural science, climate science, economics and governance to address the risks and opportunities of climate change. He has published multiple articles on the psychology of human judgment and decision making, including those that lie at the intersection of psychology and climate change, with particular focus on the understanding of uncertainty and risk. Ben is lead author of the books Straight Choices: The Psychology of Decision Making, and Open Minded: A Search for Truth about the Unconscious Mind. Ben is a member of the Academic Advisory Panel of the Behavioural Economics Team of the Australian Government (BETA), and the Chief Medical Officer’s advisory group for the National Health and Climate Strategy. Episode link at https://neshnikolic.com/podcast/ben-newellSee omnystudio.com/listener for privacy information.