In the vast landscape of psychological lore, numerous ‘facts’ are circulated and accepted without question. However, many of these so-called truths are more myth than reality. This article delves into some of the most widely believed psychological facts, revealing which ones hold truth and which are mere fiction. Prepare to challenge what you think you know about the human mind!
We Only Use 10% of Our Brains
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This popular myth suggests humans only utilize a small fraction of their brain capacity, implying vast untapped potential. However, neuroimaging has shown that we use virtually every part of the brain, and most of the brain is active almost all the time—even when performing simple tasks.
Vaccines Can Cause Autism
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Numerous studies have debunked this myth. The original 1998 study that ignited the controversy was retracted due to procedural errors and unethical conduct. Large-scale studies have consistently found no evidence linking vaccines to autism spectrum disorders.
Opposites Attract
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While it makes for a compelling narrative in movies and literature, research in social psychology shows that people are more likely to be attracted to those who are similar to themselves in terms of beliefs, values, and background.
Left-Brained vs. Right-Brained Personalities
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The idea that people are either left-brained (logical, analytical) or right-brained (creative, emotional) is an oversimplification. Brain imaging research shows that abilities in subjects like math or art are strongest when both halves of the brain work together.
Lie Detection Through Eye Movements
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The belief that the direction of eye movements can indicate lying (a component of Neuro-Linguistic Programming) lacks empirical support. Studies show that eye direction and lying are not reliably linked, making this a questionable method for lie detection.
Sugar Causes Hyperactivity in Children
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Despite popular belief, scientific studies do not support the idea that sugar causes hyperactivity. Reviews of research find no difference in behavior between children who consume sugar and those who do not, under controlled conditions.
Memory Works Like a Video Recorder
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Human memory is highly fallible and reconstructive, not a perfect playback. Our memories are influenced by subsequent experiences, beliefs, and even misinformation, leading to altered or fabricated recollections without intent to deceive.
Subliminal Messages Can Control Behavior
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While subliminal messaging can influence minor, short-term decisions in controlled experimental settings, there is no evidence that it can compel people to act against their will or have a significant impact on their behavior as often depicted in media.
We Have Five Distinct Senses
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This simplifies human perception. Beyond the traditional senses (sight, hearing, taste, touch, and smell), we have additional senses like balance (vestibular sense), temperature (thermoception), and proprioception (body awareness).
A Full Moon Affects Human Behavior
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Studies have found no consistent evidence linking the full moon to changes in human behavior. The persistent myth of the full moon’s effects on behavior is likely rooted in confirmation bias and folklore.
Venting Anger Improves Emotional State
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Contrary to the catharsis hypothesis, research suggests that expressing anger directly correlates with prolonged agitation rather than relief. Healthier emotional regulation strategies involve constructive conversation and calm introspection.
More Choices Lead to Better Decisions
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Psychological research indicates that an overload of choices can actually lead to decision fatigue, reduced satisfaction, and paralysis rather than empowerment, as individuals struggle to make a decision when faced with too many options.
Classical Music Makes Babies Smarter
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Known as the “Mozart Effect,” the claim that listening to classical music can boost intelligence lacks robust scientific backing. While music can stimulate emotions and engagement, its effect on long-term cognitive development is overstated.
Humans Swallow 8 Spiders a Year in Their Sleep
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This urban legend has been debunked numerous times. It’s highly unlikely for spiders to crawl into mouths; most spiders are terrestrial and have no reason to enter a human mouth.
Yawning Is Primarily Caused by Boredom
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Yawning is more likely related to brain temperature regulation and maintaining alertness than it is to boredom. It also has a contagious element possibly linked to empathy and group alertness.
Personality Is Determined by Birth Order
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While the idea that first-borns are more responsible and younger siblings more rebellious is popular, research has found that birth order has a very minimal effect on personality, with countless other factors playing more significant roles.
Schizophrenia Means Split Personality
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Schizophrenia is often confused with dissociative identity disorder (formerly known as multiple personality disorder). Schizophrenia is a mental health condition characterized by delusions, hallucinations, and disorganized thinking.
Drinking Alcohol Warms Your Body
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Alcohol causes blood vessels to dilate, creating a temporary feeling of warmth but actually resulting in decreased core body temperature.
Eating at Night Makes You Fat
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Weight gain is governed by total calorie intake versus calories burned, not by the timing of meals. Eating at night doesn’t inherently cause weight gain unless it contributes to an excess calorie intake.
You Must Drink 8 Glasses of Water a Day
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There is no scientific basis for the need to drink eight glasses of water a day. Hydration needs vary based on individual health, activity level, and environmental factors.
The Polygraph Test Is Highly Accurate
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The reliability of polygraph tests is highly contested. Factors like nervousness, belief in guilt, and even the examiner’s bias can affect results, leading to potential inaccuracies in detecting lies.
This article originally appeared on UnifyCosmos.
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