What COVID-19 is teaching us about the import...

People with aphantasia can’t visualize images in their mind’s eye. Ask them to picture an apple and they see a blank screen. Aphantasia researcher Joel Pearson, PhD, discusses how scientists are developing new methods to measure aphantasia beyond self-reports; how aphantasia may ...  Show more

Most of us could look at a decades-old yearbook and recognize many of the faces of our former classmates -- but humans aren't the only ones with this remarkable ability. Laura Simone Lewis, PhD, of the University of California, Santa Barbara, discusses her research on the long-te ...  Show more

Smells repel and attract; they bring emotionally charged memories to mind; they guide behavior and thought nonconsciously; they give food much of its taste; and the loss of sense of smell can help diagnose disease. But what features of the world do smells pick out? What is the ol ...  Show more

This episode explains how we sense chemicals through smell, taste, and pheromones. How things smell and taste and chemicals in the tears, breath, and on the skin of others have a profound effect on how we feel, what we do, and our hormones. I explain the 3 types of responses to s ...  Show more

Why are some smells so nasty and others so pleasant? Rutherford and Fry inhale the science of scent in this stinker of an episode.Our sleuths kick off with a guided tour of the airborne molecules and chemical receptors that power the sense of smell. Armed with a stack of pungent ...  Show more

#029 Rebroadcast

What's that smell? This week, Melissa and Jam explore the chemistry of smell. Now a lot of smell science has to do with our physiology and neurology. We'll talk some about that, but the chemistry has to do with the actual smells in the ...