
Minds Matter
Learn from cutting edge researchers in neuroscience and psychology with PhD students Beth Fisher and Ava Ma de Sousa. On Minds Matter, we explore a range of subjects, from conspiracy theories to falling in love, to nostalgia. We discuss the neuroscientific and psychological research behind these issues while talking through our own personal experiences.
Latest episodes

Jun 29, 2025 • 57min
S4 Ep14: Your Mind on Social Emotion Regulation with Dr. Razia Sahi
How do you handle tough emotions? Do you deal with things on your own or with support from others? Dr. Razia Sahi joins us to explore why leaning on others might be more powerful than we think. She shares her research on social emotion regulation, showing that when someone helps us reframe a difficult situation, it can be even more effective than doing it alone, and how the emotional benefits can last well beyond the moment. From reappraisal and validation to hand-holding and voice tone, we explore the many ways others can help us navigate difficult emotions. Beth and Ava discuss differences in how people might prefer to give and receive social support.

Jun 1, 2025 • 1h 11min
S4 Ep13: Your Mind on Substance Abuse with Dr. Keanan Joyner
What really is addiction—and can we actually get addicted to our phones? Dr. Keanan Joyner joins us to discuss how addiction works from both a biological and social lens. He shares insights from his lab’s research on drug use, genetics, and disinhibition, and explains why substance abuse isn’t just about individual choice. Ava and Beth also discuss screen use, dopamine, and what counts as “real” addiction. Plus, Dr. Joyner shares why EEG studies often exclude Black participants, and what his lab is doing to change that.

May 11, 2025 • 41min
S4 Ep12: Your Mind on the Uncanny Valley with Dr. Julija Vaitonytė
Have you ever seen a robot that looks almost human, but something feels a bit off? Did it make you feel unsettled, and maybe a bit creeped out? Dr. Yulia Vaitonytė joins us to discuss her research on this phenomenon of the uncanny valley. She unpacks the brain and perceptual cues behind this eeriness, and tells us why certain kinds of imperfections might actually help robots appear more real. Beth & Ava play a game to see if they can recognize real faces from artificially generated ones.

Apr 13, 2025 • 48min
S4 EP11 Your Mind on Deep Brain Stimulation with Dr Saurabh Sonkusare
Deep Brain Stimulation (DBS) is a ground-breaking technique that uses electrical impulses to treat conditions like epilepsy and depression through electrodes implanted in the brain. In this episode we are joined by Dr. Saurabh Sonkusare to learn about how DBS works and how it can be used in psychiatry and research. Ava and Beth discuss how DBS research findings may have implications for philosophical ideas of the self.

Mar 31, 2025 • 56min
S4 Ep10: Your Mind on Criminal Justice with Dr. Mikaela Spruill
What comes to mind when you hear the term “objectively reasonable”? In this episode, Dr. Mikaela Spruill joins us to discuss how legal standards in criminal justice aren't as neutral as they may seem. We discuss how social stratification and lived experience influence jurors' priors, the idea of legal objectivity, and why diverse juries matter.

Mar 17, 2025 • 44min
S4 Ep9: Your Mind on the Built Environment with Dr. Isabella Bower
Have you ever wondered how the built environment effects your mood? Is it true that red rooms make you angry? This week we sit down with Dr. Isabella Bower to discuss her on research on how the built environment can impact our mental health. Dr. Bower shares how the colour and size of rooms may influence us and how we should think about designing the built environment for mental health. Beth and Ava share how they feel that space effects them.

Feb 24, 2025 • 53min
S4 Ep8: Your Mind on Agency and Decision-Making with Dr. Hayley Dorfman
How do our beliefs about ourselves and the world influence the way we learn and make decisions? Dr. Hayley Dorfman joins us to discuss how internal representations like sense of control shape our learning processes. We discuss the interplay between reinforcement learning and Bayesian inference, how agency beliefs impact learning from positive and negative feedback, and how these processes change across different developmental stages/

Feb 2, 2025 • 45min
S4 EP7: A conversation about AI with an artist and researcher, Dr. Nina Rajcic
This week on Minds Matter both Ava and Beth chat with Dr. Nina Rajcic about her work using LLMs in her art practice giving us a new perspectives for thinking about AI. Dr. Rajcic talks about her work and how its meaning has changed as LLMs continue to develop. We share our thoughts about the future of AI in both tech and art.

Nov 24, 2024 • 52min
S4 Ep6: Your Mind on Optimism with Beth Fisher
In a very special episode, our very own Beth Fisher tells us all about optimism! Beth shares what optimism is, how her recent research shows psilocybin can boost optimism in rats, and what this might mean for humans. We also discuss how optimism shapes our engagement with the world, and if and when it can become too much of a good thing.

Nov 5, 2024 • 56min
S4 Ep5: Your Mind on Identity & Meaning-Making with Dr. Pauline Ho
How do our identities shift and change over our lifetimes? Dr. Pauline Ho joins us to explore three pathways of identity formation—consolidating, cumulative, and transformative—and how each is shaped by personal histories, social contexts, and important life events. Building off her research with African American college students, Dr. Ho discusses how these pathways could extend to other groups and identities. Beth and Ava chat about meaning-making in their own identities.