Change Detection

Vladimir Putin and the empty chair: Can people spot #Fakepictures?

Hamburg, Germany, July 2017. The leaders of the 20 most powerful countries in the world gather at the G20 summit to discuss the issues facing our global society. The meeting was hosted by Angela Merkel, Germany’s chancellor, and among the guests were President Donald Trump and his Russian counterpart Vladimir Putin. The New Statesman reported the excitement […]

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When your own mother might be an invisible gorilla: long-term memory and change blindness

Cognition is so interesting that we might never realize it. Most of the time we don’t think about our cognition, although we are constantly thinking, seeing, attending, memorizing, and deciding during our waking hours. When teaching my first-year student “Intro to Cognitive Psychology”, the greatest joy for me stems from seeing their faces when they […]

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The hazard (functions) of detecting the pounce on the prey

How many things can we attend to simultaneously? Imagine being an air traffic controller and you are monitoring O’Hare arrivals on the day before Thanksgiving. How many aircraft can you attend to simultaneously? Or imagine watching a flock of grazing impalas in Krueger National Park or the Serengeti while a pride of lions is casually […]

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Fortifying memory after encoding: Internal and external attention and visual short-term memory

You are in the cognitive laboratory and you focus on the screen in front of you. A few color patches are flashed for 1/10th of a second, and 2 seconds later another array of patches appears that stays on the screen until you respond. Your task is to decide whether any one of the patches […]

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