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Smartphone app can detect signs of Alzheimer’s and ADHD based on a selfie of your EYE

Now that’s striking! Scientists are developing a smartphone app that can detect signs of neurological conditions, including Alzheimer’s and ADHD based on a selfie of your EYE

  • Previous studies show that pupil-sized information can provide information about neurofunction
  • To measure pupil size, doctors are currently conducting a pupil response test
  • This requires special equipment and can only be performed in a laboratory or clinic
  • Instead, scientists have developed a smartphone app that can measure the student
  • During tests, they showed that it was as accurate as the clinical tests

Alzheimer’s is a condition that affects one in every 14 people aged 65 and over, but there is currently no simple or reliable test for the disease.

Now, scientists have developed a smartphone app that they claim can detect signs of Alzheimer’s and other neurological conditions – based on a selfie of the eye.

The app tracks changes in student size, which researchers from the University of California San Diego say could be used to assess a person’s cognitive state.

“While there is still a lot of work to be done, I am excited about the potential of using this technology to bring neurological screening out of clinical laboratory settings and into homes,” said Colin Barry, first author of the study.

“We hope this opens the door to new explorations of the use of smartphones to detect and control potential health problems sooner.”

The app uses a smartphone’s near-infrared camera to detect the pupil and calculate its size with sub-millimeter accuracy. Meanwhile, the smartphone’s selfie camera is used to take a color photo, and to capture the distance between the smartphone and the user. Allows the app to convert the near-infrared image’s pupil size to millimeter units

How does the app work?

The app uses a smartphone’s near-infrared camera to detect the pupil and calculate its size with sub-millimeter accuracy.

Meanwhile, the smartphone’s selfie camera is used to take a color photo, and to capture the distance between the smartphone and the user.

This allows the app to convert the pupil size of the near-infrared image into millimeter units.

The team also worked with older people to make sure the smartphone app was user-friendly.

Key features include voice commands, image-based instruction, and an inexpensive, plastic scope to guide the user in the correct position.

The pupil is the black circle in the center of the eye that functions to let in light and focus the retina so you can see.

Previous research has shown that pupil-sized information can provide information about a person’s neurological functions.

For example, pupil size increases when a person performs a difficult cognitive task, or hears an unexpected sound.

To measure pupil size, healthcare providers are currently conducting what is known as a pupil response test.

This requires specialized and expensive equipment, and can only be performed in the laboratory or at a clinic.

In their new study, the team set out to develop a more accessible and affordable solution.

“A scalable smartphone assessment tool that can be used for large-scale community screenings can facilitate the development of student response tests as well as minimally invasive and inexpensive tests to help detect and understand diseases such as Alzheimer’s disease,” said Professor Eric Granholm, a professor of psychiatry at UC San Diego School of Medicine.

The app uses a smartphone’s near-infrared camera to detect the pupil and calculate its size with sub-millimeter accuracy.

Most smartphones now have an infrared camera for face recognition – including the OnePlus 8 Pro, the iPhone X and later, and the Samsung Galaxy S8 and later.

Meanwhile, the smartphone’s selfie camera is used to take a color photo, and to capture the distance between the smartphone and the user.

Scientists have developed a smartphone app that they claim can detect signs of Alzheimer's and other neurological conditions - based on a selfie of the eye

Scientists have developed a smartphone app that they claim can detect signs of Alzheimer’s and other neurological conditions – based on a selfie of the eye

This allows the app to convert the pupil size of the near-infrared image into millimeter units.

During testing, the researchers found that the app’s measurements were comparable to those taken by a pupillometer – the device was considered the gold standard for measuring pupil size.

The team also worked with older people to make sure the smartphone app was user-friendly.

Key features include voice commands, image-based instruction, and an inexpensive, plastic scope to guide the user in the correct position.

“By testing directly with older adults, we learned about ways to improve the overall usability of our system and helped ourselves innovate specific solutions for older adults that make it easier for those with different physical boundaries to keep our system going. success, ”said Professor Edward Wang, a faculty member at the UC San Diego Design Lab.

‘In developing technologies, we need to look beyond function as the only metric of success, but understand how our solutions will be used by end-users who are very diverse.’

The team now plans to test the app with older adults with mild cognitive impairment, to see how effective it is in screening for early-stage Alzheimer’s disease.

What is Alzheimer’s?

Alzheimer’s disease is a progressive, degenerative disease of the brain, in which the buildup of abnormal egg proteins and nerve cells dies.

This disrupts the senders that carry messages, and causes the brain to shrink.

More than 5 million people suffer from the disease in the US, where it is the 6th leading cause of death, and more than 1 million Britons have it.

What’s happening?

When brain cells die, the functions they provide are lost.

This includes memory, orientation and the ability to think and reason.

The progression of the disease is slow and steady.

On average, patients live five to seven years after diagnosis, but some can live ten to 15 years.

HONEST SYMPTOMS:

  • Loss of short-term memory
  • Disorientation
  • Behavioral changes
  • Mood swings
  • Difficulty handling money or making a phone call

EASIER SYMPTOMS:

  • Severe memory loss, forgetting near family members, familiar objects or places
  • Anxiety and frustration over inability to make sense of the world, leading to aggressive behavior
  • Eventually lose ability to run
  • May have problems with food
  • The majority ultimately need 24 hours of care

Source: Alzheimer’s Association

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