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Depth perception in babies
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Despite his mother beckoning him to come towards her, this infant hesitates to cross the "visual cliff" – an apparently steep drop that is actually covered by transparent glass. Psychologists in the 1960s found that most infants 6 to 14 months of age were reluctant to crawl over the cliff, suggesting they had the ability to perceive depth. Most psychologists believe that the ability to perceive depth is partly innate and partly a product of early visual experience. Here's a test you can try to demonstrate how your perception of depth is still live and active. Below are two perfect circles, yet the smaller circle appears distorted. Our brain interprets the converging lines to be adding depth to the screen, as if the solid middle is further aw ...
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18946 |
bio_man |
3 years ago |
Watch this rare footage of a housewife on LSD
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Lysergic acid diethylamide (LSD) is a recreational, psychedelic drug that alter awareness of the surroundings, perceptions, and feelings, as well as sensations and images that seem real though they are not. LSD works by binding primarily to the dopamine receptors and adrenal receptors in the brain. It also binds to most of the serotonin receptors. The binding process is believed to overstimulate the natural neurotransmission process, activating the receptors and altering thought and perceptions. Though medical researchers have not scientifically proven how this process alters consciousness, they are certain about the binding process which links hallucinogenic chemicals to receptors and disrupts neurotransmission between receptors and parts of ...
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3535 |
duddy |
8 years ago |
One-eyed pigeons are terrible with directions
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When homing pigeons fly home they rely on smells, magnetic fields, and vision to guide their way. But how important visual memory is for pigeons has long remained a mystery. According to a new study, pigeons that learned their way home with a blocked left eye couldn’t repeat the same journey when they wore a patch over their right eye, and vice versa. Instead, they flew slightly off course, following more of a curve than a straight line. Since birds lack a corpus callosum, this suggests that a birds’ lack of this key neural structure greatly affects how pigeons are able to find their way home. Source: http://rspb.royalsocietypublishing.org/content/282/1816/20151957 ...
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9108 |
duddy |
8 years ago |
Could pink prison cells calm prisoners down? This psychologist thinks so
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Would someone feel more calm after seeing the colour blue? Or perhaps they would feel more aggressive after having seen the colour red? Swiss psychiatrist, Max Lüscher, had completed a study in the 20 th century that linked colour preference to your personality and your mental state. His belief was further hardwired after an experiment concluded that 151 out of 153 people were weaker after looking at the pink card, when compared to how strong they were when they had looked at the blue card. ...
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9462 |
duddy |
9 years ago |
Weird things happen when you stare into someone's eyes
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According to a new study conducted out of Italy, staring into another individuals eyes could induce hallucinogenic effects. The experiment is simple: get two individuals to look into each other's eyes for 10 minutes while they are sitting in a dimly lit room. The sensations that ensue resemble mild "dissociation" - a rather vague psychological term for when people lose their normal connection with reality. It can include feeling like the world is unreal, memory loss and odd perceptual experiences, such as seeing the world in black and white Healthy participants said they'd had "... a compelling experience unlike anything they'd felt before", they scored higher on a dissociative states questionnaire than control participants, and 75 per cent ...
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2228 |
duddy |
9 years ago |
Red-hot nickel ball versus floral foam
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What's happening: The foam used in this experiment is a type of synthetic carbon, which means it's so dense, it doesn't allow for air-flow. Because of this, the heat smoulders through the material, rather than forming a proper flame, sucking the oxygen out as it goes, and leaving behind the dried out remains. This is the same reaction that happens when you turn wood into charcoal. ...
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1198 |
duddy |
9 years ago |
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12144 |
duddy |
9 years ago |
Golden rain
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Watch lead iodide turn into bright golden glitter in this awesome chemistry experiment known as the 'Golden Reaction'
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12550 |
duddy |
9 years ago |
World's largest vacuum
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See what happens when scientists drop a bowling ball and a feather in the world's largest vacuum; for the science-illiterate viewers out there (sorry ), a vacuum is a space entirely devoid of matter (also known as an absolute vacuum). A lot of you probably already know how this one ends, but that doesn't make watching it play out any less spectacular. ...
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6656 |
duddy |
9 years ago |
Don't try this at home
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A ganzfeld experiment is a technique used in the field of parapsychology to test individuals for extrasensory perception (ESP). It uses homogeneous and unpatterned sensory stimulation to produce the ganzfeld effect, an effect similar to sensory deprivation.The ganzfeld effect has been utilized in many studies of the neuroscience of perception, not only parapsychology. The deprivation of patterned sensory input is said to be conducive to inwardly generated impressions.The technique was devised by Wolfgang Metzger in the 1930s as part of his investigation into the gestalt theory. ...
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8104 |
duddy |
10 years ago |
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2765 |
bio_man |
11 years ago |