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.

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.

The climate crisis demands urgent action, yet many people struggle to make meaningful changes. This week, we’re joined by Dr. Rachit Dubey to hear about the the psychology behind climate inaction. Dr. Dubey shares insights into why humans are wired to seek rewards, leading to consumerism—a core driver of environmental issues. He breaks down how understanding these psychological patterns can help shape more effective climate policies. We learn the best ways to communicate climate change information. Beth and Ava reflect on how their own experiences have influenced their environmental concerns and actions.

How often do you find yourself pondering existential questions—like the meaning of life or what happens after we die? This week, we're joined by Dr. Telli Davoodi, to speak about her research on how both scientific and religious explanations address these questions and psychological roles they play in our lives. Dr. Davoodi also shares insights from her cross-cultural studies, exploring how children form beliefs about concepts they can’t directly observe. In this moving episode, Beth and Ava open up about their own beliefs and personal experiences with finding meaning in life. Spoiler alert: Beth gets emotional!

Have you ever felt disgusted? Have you wondered what caused that feeling? This week Dr. Indra Bishnoi explains to us the science behind disgust and its relationship to nausea. She shares her research on conditioned induced nausea and chemotherapy, explaining the importance of finding a treatment to treat this disgust response. We talk about how anxiety can feelings of nausea and Beth and Ava share their own feelings on disgust.

Welcome back to season 4 of Minds Matter! We begin our season with a conversation about civic science with Andrew Gray, co-founder of BioQuisitive a civic science hub in Brunswick, Australia. Can there be ways to create research outside a university? And what does it look like to democratise science? Andrew talks about his inspiring journey to get to where he is today and we reflect non-traditional ways we can study, research, and learn.

In an age where politicians are both subjects and creators of memes, and outlets like The Daily Show shape public discourse, how is humor influencing our political engagement? Dr. Prateekshit "Kanu" Pandey shares research on humor's effects on the brain, and its differing roles across cultures, from the U.S. to India. Dr. Pandey, Ava & Beth reflect on whether humor good is for politics and civic engagement, or whether politics should remain strictly serious business.

New developments in AI are making headline news with many perspectives on what the future of AI holds. From Chat GPT to robots, there is lots of new information to take in! This week Dr. Abhilasha Ravichander answers our questions from the basics of AI to questions of AI and consciousness. She speaks to us about where the field is at now and discusses her research on hallucinations in Large Language Models and how they can help us understand how our data is being used. Ava and Beth talk about where they think the future is going.