Category: Senses
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Simple questions…
On some days, time flies by, while on others it seems to drag on. A new study from JNeurosci reveals why: time-sensitive neurons get worn out and skew our perceptions of time. (1) Senses based on specific cells or neurons. Perception based on specific body functions. What is the correct perception? What is the false…
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Getting ready to see…
A KAIST research team's computational simulations demonstrated that the waves of spontaneous neural activity in the retinas of still-closed eyes in mammals develop long-range horizontal connections in the visual cortex during early developmental stages. You see, to prepare the animal to see when its eyes open, neural circuits in the brain's visual system must begin…
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Optical illusions…
Why people perceive motion in some static images has mystified not only those who view these optical illusions but neuroscientists who have tried to explain the phenomenon. Now Yale neuroscientists have found some answers in the eyes of flies, they reported in Aug. 24, 2020 in the Proceedings of the National Academy of Sciences. It…
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Enhance!
Since the early 1930s, electron microscopy has provided unprecedented access to the alien world of the extraordinarily small, revealing intricate details that are otherwise impossible to discern with conventional light microscopy. But to achieve high resolution over a large specimen area, the energy of the electron beams needs to be cranked up, which is costly…
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Ignore… you!
Electric fish generate electric pulses to communicate with other fish and sense their surroundings. Some species broadcast shorter electric pulses, while others send out long ones. But all that zip-zapping in the water can get confusing. The fish need to filter out their own pulses so they can identify external messages and only respond to…
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