Category Archives: Psychology

How Painkillers Take the Edge Off

If only it were that simple.

Pain is essential to life, and not just in a Nietzschean, what-does-not-destroy-me-makes-me-stronger sense. It alerts us to injuries and prods us to stop poking at our wounds. It’s God’s megaphone, nature’s cone of shame. Pain is so essential, in fact, that losing our capacity for it can have life-threatening consequences.

Yet we’ve really only begun to understand how pain works in the past 40 years or so, thanks in large part to technological advances. Granted, most painkillers sport a list of side effects that reads like a Tomás de Torquemada’s own torture manual, but at least we understand something of the nervous mechanisms that underpin our owies. That said, just what on Earth is a COX inhibitor? Or an NSAID? And most important of all…

How do painkillers know where you hurt?

The Internet of Things…that Go Bump in the Night

An artist's rendering of the Internet of Things.
Drawing by wilgengebroed.

As sci-fi and techno-horror flicks are fond pointing out, the future is chock-full of things that want to kill us. Yep, our own technological progeny want to consign us to the great bit-bucket in the sky but, hey, at least we were warned, right?

Well, sure, if we had any intention of heeding these cinematic Cassandras. Think about it: The Terminator warns us about Skynet, so what do we do? We set to work on autonomous drones. Christine  frightens us with a possessed 1958 Plymouth Fury, so we get busy designing self-driving cars. It’s like we want to die.

And then there’s the Internet of Things: Trillions of everyday objects exchanging data, everywhere, all the time, with only the most basic human oversight. Can’t wait to see how that one turns out.

10 Nightmare Scenarios From the Internet of Things

Nocturnal Commissions: Water Bowl v. Bladder Control

WaterfallWe’ve all heard stories of bedwetting brought about by placing a sleeper’s hand in a pan of warm water. Yet attempts at experimental confirmation have hardly been flush with success. Are the stories true? And if so, what urological or psychological mechanism is at work?

We spend years developing the ability to stay dry at night. Why not spend a few minutes reading about how easily it can be undone?

Will Putting People’s Hands in Warm Water Really Make Them Wet the Bed?

The Causation-Correlation Conflation

Not equal signThe question of cause  has haunted science and philosophy from their earliest days, in part because humans are wired for pattern-matching and confirmation bias. For all our supposed rationality, we confuse coincidence with correlation and correlation with causality.

Consequently, scientists must carefully design and control their experiments to remove bias, circular reasoning, self-fulfilling prophecies and hidden variables. They must respect the requirements and limitations of their methods, draw from representative samples and not overstate their results. Sometimes, however, that’s easier said than done. Read on to hear about…

10 Correlations that are Not Causations

Questioning the Decline of Human Intelligence

Photo by Dan Kassem.

Science still struggles to define, measure or understand intelligence, let alone definitively nail down its genetic components. Yet one Stanford geneticist argues that civilization was a bad move, and that human intelligence has gradually ratcheted down  since leaving its hunter-gatherer days behind.

Is the Peter Principle killing our intellect, or is Crabtree’s model another unripe hypothesis that received too much media attention? Read on to find out.

Did human intelligence peak thousands of years ago?