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Knowing the stages of neurological development can make you a better parent
There are four main stages. Each has its own particular set of advancements and challenges.
Don't you wish you could predict your child's behavior with 100 percent accuracy? Any realistic parent knows it's an impossible daydream, but an appealing one nonetheless. Kids will always surprise you. There are so many factors that go into behavior, not to mention the fact that internal and external forces can sometimes make kids act out of character.
What you can do is come to understand the stages of their neurological development and what it means for their learning and behavior. Turns out, those parents who get a good grip on how we develop neurologically, are better able to guide their children toward positive outcomes. Here's a rundown of the stages of neurological development and what they mean for parenting.
The first is the sensorimotor stage. This takes places between birth and two-years. A child at this stage is getting used to experiencing the environment through their senses. Through trial and error and from experiences with objects and sensations, they begin to master the world around them. Around age one, the child learns object permanence, the concept that an object continues to exist, even when it's left the field of vision.
According to Sarah Lytle, PhD., from the Institute for Learning & Brain Sciences at the University of Washington in Seattle, what many parents don't fully realize is that babies are also developing socially and emotionally. As such, they usually look to their parent for support. If you've ever engaged with a baby you didn't know, you'll notice the child usually turns to their parent to gauge how to respond. This act is called social referencing or social cognition. Be sure to be supportive when the child does this. This allows for more confidence and independence.
Young children understand the world through interaction with their senses. Getty Images.
A child's first word is uttered around six months of age. To help a baby develop language skills further, remember that they follow your gaze. Emphasize with your eyes by moving them slowly when introducing a new word. According to Dr. Lytle, it's okay to use a baby-talk tone. We're actually genetically programmed to talk that way. But make sure you use words correctly, in full, and in complete, grammatically correct sentences.
From age two to six or seven, a child enters the preoperational stage. Here, language skills ramp up. The child can start to think in terms of symbols, develop a numerical understanding, and begin to grasp the distinction between past and future. Children at this age do well with concrete situations. Abstract concepts, however, are difficult to grasp.
It's at age two that humans become amazed by the idea that others don't see the world quite like they do. As the parents of two-year olds are all too well aware of, this self-centered viewpoint makes it difficult for the child to share and care about others. Although a 2016 poll showed that most parents think two-year olds can control their emotions, psychologists say quite the contrary. Having a toy that they love on hand to distract them when they pull a temper tantrum is probably the best strategy.
Two year-olds can't control their emotions very well. Luckily, they're distracted easily. Getty Images.
To help build empathy, parents can work at developing a child's theory of mind. This is coming to understand the perspective of others. Note this doesn't develop until the child is three or four. One famous example is the “Sally-Anne test."
Here, a child is told that Sally has a basket and Anne a box. Sally puts an object in her basket, then goes for a walk. Anne takes the object and puts it in her box. The child is asked, “Once Sally returns, where will she look for the object?" If the child understands Sally's point of view, they will say, “In the basket." Another tactic it to read them stories where they have to put themselves in a character's shoes.
From age six or seven to 11 or 12, a child enters the concrete operations stage. Seven is supposed to be the age of reason. Here, he or she can grasp abstract concepts, understand sequences of events, and empathize with others whose experiences are different from their own. Children at this stage can learn abstract mathematical concepts, but they aren't good at breaking down complex problems which require systematic reasoning. Lytle suggests keeping in mind a child's emotional development at this stage. Parents often don't realize how affected their children are by marital spats or a parent suffering something like a bout of depression.
From age 12 throughout the teen years, the child enters the formal operations stage, where he or she develops greater capacities for hypothetical thinking, abstract reasoning, and deductive reasoning. Generally, people have a good grasp of these by age 15. Moral issues like social justice and abstract ideas, such as probabilities, can be understood. Although for parents, few stages can be quite as challenging.
Dealing with teens is challenging because of how their brains work. Getty Images.
Teens are often moody and hypersensitive. This is usually chalked up to hormones, but it's also because their midbrain is highly active in this stage. The brain develops from back to front.
The midbrain is responsible for memory, emotion, and sexuality. It may surprise you to know that the rational part of the brain, the prefrontal cortex, isn't fully developed until around age 25. This is responsible for things like decision-making, planning, impulse control, and risk avoidance.
Teens are more likely to evaluate situations with their amygdala or emotional center. This is why they tend to get overwhelmed by their emotions, but might have a hard time expressing them. It also explains their intermittent bend toward risky behavior. Make sure to talk to them often about drugs and alcohol, the risks of unprotected sex, and so on, and give them vocabulary they can use to avoid social pressures. When a teen does make a mistake, instead of scolding or lecturing, use it as a teachable moment. Walk them through it logically. Find out in their own words what they should have done differently. This can help them develop decision-making skills.
Also, work on giving them frontal lobe tasks or doing it with them. Give them opportunities to practice problem-solving, make judgment calls, or to plan things out. Do it together or debrief once they've completed the task. Sure, raising kids is far from easy, but knowing a little neuroscience can make a real difference.
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A Mercury-bound spacecraft's noisy flyby of our home planet.
- There is no sound in space, but if there was, this is what it might sound like passing by Earth.
- A spacecraft bound for Mercury recorded data while swinging around our planet, and that data was converted into sound.
- Yes, in space no one can hear you scream, but this is still some chill stuff.
First off, let's be clear what we mean by "hear" here. (Here, here!)
Sound, as we know it, requires air. What our ears capture is actually oscillating waves of fluctuating air pressure. Cilia, fibers in our ears, respond to these fluctuations by firing off corresponding clusters of tones at different pitches to our brains. This is what we perceive as sound.
All of which is to say, sound requires air, and space is notoriously void of that. So, in terms of human-perceivable sound, it's silent out there. Nonetheless, there can be cyclical events in space — such as oscillating values in streams of captured data — that can be mapped to pitches, and thus made audible.
Image source: European Space Agency
The European Space Agency's BepiColombo spacecraft took off from Kourou, French Guyana on October 20, 2019, on its way to Mercury. To reduce its speed for the proper trajectory to Mercury, BepiColombo executed a "gravity-assist flyby," slinging itself around the Earth before leaving home. Over the course of its 34-minute flyby, its two data recorders captured five data sets that Italy's National Institute for Astrophysics (INAF) enhanced and converted into sound waves.
Into and out of Earth's shadow
In April, BepiColombo began its closest approach to Earth, ranging from 256,393 kilometers (159,315 miles) to 129,488 kilometers (80,460 miles) away. The audio above starts as BepiColombo begins to sneak into the Earth's shadow facing away from the sun.
The data was captured by BepiColombo's Italian Spring Accelerometer (ISA) instrument. Says Carmelo Magnafico of the ISA team, "When the spacecraft enters the shadow and the force of the Sun disappears, we can hear a slight vibration. The solar panels, previously flexed by the Sun, then find a new balance. Upon exiting the shadow, we can hear the effect again."
In addition to making for some cool sounds, the phenomenon allowed the ISA team to confirm just how sensitive their instrument is. "This is an extraordinary situation," says Carmelo. "Since we started the cruise, we have only been in direct sunshine, so we did not have the possibility to check effectively whether our instrument is measuring the variations of the force of the sunlight."
When the craft arrives at Mercury, the ISA will be tasked with studying the planets gravity.
The second clip is derived from data captured by BepiColombo's MPO-MAG magnetometer, AKA MERMAG, as the craft traveled through Earth's magnetosphere, the area surrounding the planet that's determined by the its magnetic field.
BepiColombo eventually entered the hellish mangentosheath, the region battered by cosmic plasma from the sun before the craft passed into the relatively peaceful magentopause that marks the transition between the magnetosphere and Earth's own magnetic field.
MERMAG will map Mercury's magnetosphere, as well as the magnetic state of the planet's interior. As a secondary objective, it will assess the interaction of the solar wind, Mercury's magnetic field, and the planet, analyzing the dynamics of the magnetosphere and its interaction with Mercury.
Recording session over, BepiColombo is now slipping through space silently with its arrival at Mercury planned for 2025.
Research suggests that aging affects a brain circuit critical for learning and decision-making.
As people age, they often lose their motivation to learn new things or engage in everyday activities. In a study of mice, MIT neuroscientists have now identified a brain circuit that is critical for maintaining this kind of motivation.
Researchers develop the first objective tool for assessing the onset of cognitive decline through the measurement of white spots in the brain.
- MRI brain scans may show white spots that scientists believe are linked to cognitive decline.
- Experts have had no objective means of counting and measuring these lesions.
- A new tool counts white spots and also cleverly measures their volumes.
White spots and educated guesses<p>The white spots, or "hyperintensities," are brain lesions—fluid-filled holes in the brain believed to have been left behind by the breaking down of blood vessels that had previously provided nourishment to brain cells.</p><p>Prior to the new research, the quantity of white spots was assessed using an imprecise three-point scale indicating ascending likelihoods of dementia: A minimal number of spots was considered as level 1, a medium number of spots level 2, and a great number of them level 3.</p>
How the new measurements were derived<img type="lazy-image" data-runner-src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yNDYwMTc1OS9vcmlnaW4uanBnIiwiZXhwaXJlc19hdCI6MTYzNDQ1ODExNX0.vqhQJSvL99KjOe24TOs4E8R7c6-pprbXYSrGcIqbVps/img.jpg?width=980" id="c64d9" class="rm-shortcode" data-rm-shortcode-id="002d9b8ef47b5a86c3a387ad2cd90629" data-rm-shortcode-name="rebelmouse-image" />
Credit: sfam_photo/Shutterstock<p>The team of researchers from NYU's Langone's <a href="https://med.nyu.edu/departments-institutes/neurology/divisions-centers/center-cognitive-neurology" target="_blank">Center for Cognitive Neurology</a> and <a href="https://med.nyu.edu/departments-institutes/neurology/divisions-centers/center-cognitive-neurology/alzheimers-disease-research-center" target="_blank">Alzheimer's Disease Research Center</a> were led by <a href="https://med.nyu.edu/faculty/jingyun-chen" target="_blank">Jingyun "Josh" Chen</a>. They analyzed 72 MRI scans from a national database of older people taken as part of the <a href="http://adni.loni.usc.edu" target="_blank">Alzheimer's Disease Neuroimaging Initiative</a> (ADNI). The scans were mostly of white people over age 70, and there were a roughly equivalent number of men and women. Some had normal brain function, some were presenting moderate cognitive decline, and some had severe dementia.</p><p>Without knowing each individual's diagnosis, the researchers analyzed the white spots in their scans. While the team counted each scan's lesions, the innovation they introduced was the production of a 3D measurement for each lesion's fluid volume. The measurement was derived by measuring a lesion's distance from opposite sides of the brain.</p><p>Measurements of 0 milliliters (mL) were assessed for areas without white spots, with other white spots coming up as containing 60 mL of fluid. Chen's team predicted that volumes over 100 mL could signify severe dementia.</p><p>"Amounts of white matter lesions above the normal range should serve as an early warning sign for patients and physicians," Chen told <a href="https://nyulangone.org/news/white-matter-lesion-mapping-tool-identifies-early-signs-dementia" target="_blank">NYU Langone Health NewsHub</a>.</p><p>When the team compared the likely diagnoses derived from their calculations against the individuals' medical records, they found that their predictions were correct about 7 out of 10 times.</p><p>The researchers compiled their formulas into an online tool that's available to physicians for free via <a href="https://github.com/jingyunc/wmhs" target="_blank" rel="noopener noreferrer">GitHub</a>. The researchers plan to further refine and test it using an additional 1,495 brain scans representing a more diverse group of individuals from the ADNI database.</p>