Developmental Dyslexia Was Essential For Human Survival and Still Has Benefits Today

As the most common cause of spelling, reading, and writing difficulties, dyslexia affects about 15% to 20% of the population. It’s a learning difficulty that does not discriminate, as it affects the general population nearly equally, regardless of gender, ethnicity, or socio-economic background.

Widely misunderstood, dyslexia is often written off solely as a disability or falsely considered a sign of low intelligence. But new research suggests that dyslexia is an essential contributor to the successful evolution and survival of humans as a species. Researchers aim to change the way we perceive and approach dyslexia as a neurological disorder.

The Research

Researchers from the University of Cambridge set out to examine developmental dyslexia from an evolutionary perspective, rather than the typical perspective of educational difficulty.

They did this for a number of reasons: dyslexia’s prevalence and heritability within the general population, the fact that it’s polygenic in nature, and that writing is a relatively “recent technology, and the need to read and write is unlikely to have exerted any significant evolutionary selection pressure,” according to the study.

After analyzing past studies in psychology and neuroscience using this framework, the findings suggest an “explorative bias” in individuals with dyslexia that results in greater strengths in discovery, invention, and creativity.

The difficulties people with dyslexia experience today are the product of a “cognitive trade-off between exploration of new information and exploitation of existing knowledge.”

These findings challenge the notion that dyslexia is a disorder, but rather a “specialization,” and early humans evolved to specialize in different but complementary ways of thinking. Through this collaboration, humans were better equipped to adapt during times of uncertainty and change.

Researchers argue for a reframing around the way we think about dyslexia, as explorative learning isn’t commonly nurtured in the education system or the workplace. If humans are to continue to evolve and problem-solve, they say, collaboration must be prioritized over competition.

“The deficit-centered view of dyslexia isn’t telling the whole story,” said lead study author, Helen Taylor, in a release. “This research proposes a new framework to help us better understand the cognitive strengths of people with dyslexia.”

Superpowers of Dyslexia

While dyslexia is often misunderstood, a movement has been underway to raise awareness of the real experience of being dyslexic.

There are some known potential strengths of people with dyslexia, says Gail Saltz, MD, associate professor of psychiatry at New York Presbyterian Hospital and host of the “How Can I Help?” podcast.

Individuals with dyslexia are often fast problem-solvers, big-picture thinkers, great verbal communicators, and creative entrepreneurs.

Saltz, who authored the book “The Power of Different: The Link Between Disorder and Genius,” notes that people with dyslexia also often have increased visual spatial relations, a heightened ability to discern patterns, and a wider spatial attention, or “they can note more information in the periphery of their view.”

“Due to their struggles with symptoms, perhaps they often have increased empathy, resilience, and perseverance,” Saltz says.

The experience of dyslexia and the impact it has on a person’s life varies greatly, as it affects a wide range of people and each person’s experience is unique.

Excerpted from “Developmental Dyslexia Was Essential For Human Survival and Still Has Benefits Today” in VeryWellMind. Read the full article online.

Interesred in learning more: View our collection of dyslexia articles.

Source: VeryWellMind | Developmental Dyslexia Was Essential For Human Survival and Still Has Benefits Today, https://www.verywellmind.com/developmental-dyslexia-was-essential-for-human-survival-and-still-has-benefits-today-5546926 | Ⓒ 2023 Dotdash Media, Inc.

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