Myth: Mirror neurons are special cells that create empathy

Decades ago, scientists noticed neurons increase their activity when an individual is taking a particular action, for example, waving when others are waving. They named them "mirror neurons."

But, your brain is really predicting your next action based on what you see, hear, and feel if you move. Seeing someone wriggle their fingers in the air and understanding it as a greeting is a normal part of your brain's predictive processes.

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7 (and a half) myths about your brain

sciencefocus.com

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All of your sensations are computed in your brain.

  • You see with your brain, based on what is in your brain and the sense data from your eyes.
  • You hear with your brain as it makes sense of sounds based partly on the data from your ears.
  • Your skin has no sensors for wetness. Instead, your brain combines several sources of information, including touch, temperature, and knowledge from experience, to create a feeling of being wet.

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Myth: You have a lizard in your head

You may have heard that your passions lie deep in ancient parts of your brain that you apparently inherited from prehistoric reptiles. Or that your "rational brain" which sits on top of your "lizard brain" tries to moderate your desires.

The only animal with a lizard brain is a lizard. Neuroscience clearly shows that brains don't evolve in layers but follow a single manufacturing plan.

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Most parts of the human brain can't grow new brain cells, but some parts can.

The hippocampus can grow new neurons. The hippocampus is important for learning, remembering, regulating your eating, and other biological functions.

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During any day, it can seem like your brain is reacting to events around you. You're pricked by a needle and feel a bit of pain.

However, your brain constantly predicts the next moment and compares the guess to the data it receives from the world and inside your body. These predictions turn into your actions.

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Hormones don't just have one specific psychological purpose, and all the chemicals work together in your mind.

  • Cortisol boosts the amount of glucose in your bloodstream for a quick burst of energy, such as before you exercise or wake up in the morning, not just when you are stressed.
  • Serotonin has many functions. It regulates how much fat is made and helps keep track of your energy. It also helps other neurons pass on information as they create your thoughts, feelings and actions.

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Generally, no part of your brain is exclusively dedicated to creativity or mathematical reasoning. Neurons compute every action you take from across the entire brain.

While your cerebral cortex consists of two halves, both are intricately connected. Language ability does take place mainly in the left hemisphere, but this lateralisation develops gradually in most people.

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Your brain doesn't store memories like a filing system. Your brain reconstructs your memories on demand with electricity and chemicals.

"Remembering" is really "assembling" and may be influenced by your current situation, so your brain may reshape each occurrence so that it differs in the details.

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Neurons have multiple tasks

It is a myth that specific parts of the human brain have specific psychological jobs. The myth claims that the brain has separate parts, each with a dedicated mental function - one part for vision, another for memory, etc.

Today, we know the brain is a massive network of neurons with multiple jobs, not a single psychological purpose. Not all neurons can do everything, but most neurons do more than one thing.

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That Is Not How Your Brain Works - Issue 98: Mind - Nautilus

nautil.us

Hormones and Neurotransmitters

Hormones are chemicals produced by various glands, called the endocrine system, whose primary function is to communicate between two glands or between a gland and an organ focusing on: mood regulation, pleasure, pain relief etc.

Neurotransmitters are like hormones but they are produced in the brain and send messages using the nervous system.

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Serotonin And The Other Happy Hormones In Your Body

atlasbiomed.com

Myth: We only use 10% of our brains

We've heard this myth countless times from many different films or even in some of the fiction books we've read, but the reality is it continues to be a work of fiction. If this myth were true, we wouldn't be worried about brain damage that has profound consequences for our cognition and function.

The truth of the matter is that brain imaging techniques have demonstrated that the entire brain is being used even while we are asleep.

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8 Myths About the Brain Debunked

verywellmind.com

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