One of the most important functions of perception is to help organisms navigate through their environments. Different animals navigate through very different environments: think of birds flying at thousands of feet above the ground, bats catching moths in pitch darkness mid-flight, whales crossing entire oceans, bees finding nectar-rich flowers, monkeys scampering through dense tree foliage. […]
In 1625, the astronomer Christopher Scheiner confirmed Johann Kepler’s hunch that images projected to the retina through the crystalline lens of the eye, much like images passed through telescope lenses, were inverted. Up was down, down was up. This observation stymied many philosophers and scientists into the 20th century. Why, if the images formed on the retina of […]
Here is a neat finding, originally reported by Gillian Cohen in 1990. It is easier to remember that someone is a baker than that someone’s name is Baker. Although both memories seem to require making a connection between the person’s appearance and the very same word “baker,” the profession baker is meaningful, evoking rich imagery and other associations. The name […]
You are deeply involved in a conversation with someone at a party when suddenly you hear someone say your name, and, before you even know what happened, your attention is transported toward the voice that uttered it. This is an example of the cocktail party effect, first described in 1959 and recently extended even to visual stimuli. This […]
It was once thought that what we perceive is a straightforward reflection of a stable reality. So, we see a circle to be a certain size because it is a certain size. A quick glance at illusions such as the Ebbinghaus illusion and the Rubik’s cube color illusion clearly show that this is not the case: what we perceive […]
We learn at a young age that we see with our eyes, hear with our ears, smell with our noses. The clear anatomical differences between these sense organs appear to map intuitively on how we think about the different perceptual modalities. The scientific study of perception is likewise largely divided along these modal lines. Someone […]