Our guest is Karen Schloss, who studies the way in which color is imbued with meaning through a lifetime of associations with objects (like bananas and fire trucks) and concepts (like love and politics). We discuss her research, including topics such as:

Links:

We examine a paper that finds sleep disruption from using tablet computers (as compared to reading a book in dim light). How much should we be worried about the effects of screens on a good night's sleep?

There's good reason to believe that blue light is the main culprit -- recently discovered receptors in the eye that respond to blue light directly connect to brain areas implicated in sleep regulation. We lay out the case....

Papers:

Joe and Rolf talk with Brent Stansfield, who is currently the director of medical education at Wayne State University, about the future of health care and the kinds of value that doctors can provide as artificial intelligence and robotic surgery come of age.

We frame the discussion around the article "Medical Education Must Move From the Information Age to the Age of Artificial Intelligence" by Steven Wartman & Donald Combs.

Special Guest: Brent Stansfield.

We talk about the history of research on intelligence. Is intelligence a real thing? What does it actually refer to, and can it be measured? Joe and Rolf discuss.

We discuss the article:

Augmentation of Brain Function: Facts, Fiction, and Controversy

...a collection that explores recent research and opinion on ways of enhancing brain functioning, from classroom learning to the use of electrical and laser stimulation on the brain.

Is self-control something that we an think of as a resource that can be depleted and replenished? It's been a popular model in psychology for years, but it has come under question recently. We discuss "Why self-control seems like (but may not be) limited", a paper by Inzlicht and colleagues that proposes an alternate model.

Can we create life artificially? What would that even mean? Rolf and Joe talk about the field of Artificial Life, or "A-Life", which has worked toward the goal from a number of academic disciplines for the past thirty or so years. They think about different approaches, such as software, hardware, and biological artificial life, and consider what it might take to convince us that we have created something that would be considered life.

Dr. Stephanie Preston is our guest for this great conversation about the neural and evolutionary underpinnings of heroic behaviors. She proposes that heroism can be found across the phylogenetic spectrum, and acts of human heroism may have significant roots in conserved behavior patterns -- for example, the instinct for mother rats to retrieve and protect their young even at the risk of great personal danger.

We discuss what qualifies as heroism, how situations can cue (or inhibit) heroic behavior, and what the evolutionary advantage might be to put one's own genes at risk to save the life of another.

We also discuss the field of evolutionary psychology as a whole, and the way in which researchers think about it differently than it is often represented in popular press.

Special Guest: Stephanie Preston.

The psychologist Dan Wegner (1948-2013) had a lot of influential work. One of his most popular (and controversial) claims was that conscious will is an illusion. He wanted to sidestep the issue of whether or not "free will" in a metaphysical sense exists, and get to the more psychological issue of why human beings have such a strong feeling that their conscious intention is what causes their actions.

Can this be right? What exactly does Wegner mean, and does this mean we should abandon moral responsibility? Rolf and Joe get into the weeds sorting out how psychological insights can inform how we think about philosophical issues.

We talk with Adrian Nestor, a professor and researcher at the University of Toronto, Scarsborough, about his recent research, the state of current brain imaging technology, and some speculations about where the field is headed. Can mental images and thoughts be captured, decoded, and understood by a combination of electroencephalography and machine learning techniques? What is the hype and what is the reality?