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posted by martyb on Thursday January 13 2022, @11:59PM   Printer-friendly [Skip to comment(s)]
from the what-was-your-name-again? dept.

Remembering faces and names can be improved during sleep: Research finds memory reactivation:

The researchers found that people's name recall improved significantly when memories of newly learned face-name associations were reactivated while they were napping. Key to this improvement was uninterrupted deep sleep.

[...] The research team found that for study participants with EEG measures (a recording of electrical activity of the brain picked up by electrodes on the scalp) that indicated disrupted sleep, the memory reactivation didn't help and may even be detrimental. But in those with uninterrupted sleep during the specific times of sound presentations, the reactivation led to a relative improvement averaging just over 1.5 more names recalled.

The study was conducted on 24 participants, aged 18-31 years old, who were asked to memorize the faces and names of 40 pupils from a hypothetical Latin American history class and another 40 from a Japanese history class. When each face was shown again, they were asked to produce the name that went with it. After the learning exercise, participants took a nap while the researchers carefully monitored brain activity using EEG measurements. When participants reached the N3 "deep sleep" state, some of the names were softly played on a speaker with music that was associated with one of the classes.

When participants woke up, they were retested on recognizing the faces and recalling the name that went with each face.

[...] "We already know that some sleep disorders like apnea can impair memory," said Whitmore. "Our research suggests a potential explanation for this -- frequent sleep interruptions at night might be degrading memory."

See, also, Wikipedia entry on Prosopagnosia:

Prosopagnosia (from Greek prósōpon, meaning "face", and agnōsía, meaning "non-knowledge"), also called face blindness, is a cognitive disorder of face perception in which the ability to recognize familiar faces, including one's own face (self-recognition), is impaired, while other aspects of visual processing (e.g., object discrimination) and intellectual functioning (e.g., decision-making) remain intact. The term originally referred to a condition following acute brain damage (acquired prosopagnosia), but a congenital or developmental form of the disorder also exists, with a prevalence of 2.5%. The brain area usually associated with prosopagnosia is the fusiform gyrus,[4] which activates specifically in response to faces. The functionality of the fusiform gyrus allows most people to recognize faces in more detail than they do similarly complex inanimate objects. For those with prosopagnosia, the method for recognizing faces depends on the less sensitive object-recognition system. The right hemisphere fusiform gyrus is more often involved in familiar face recognition than the left. It remains unclear whether the fusiform gyrus is specific for the recognition of human faces or if it is also involved in highly trained visual stimuli.

Journal Reference:
Nathan W. Whitmore, Adrianna M. Bassard, Ken A. Paller. Targeted memory reactivation of face-name learning depends on ample and undisturbed slow-wave sleep [open], npj Science of Learning (DOI: 10.1038/s41539-021-00119-2)

Original Submission

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  • (Score: 2) by sonamchauhan on Friday January 14 2022, @02:20AM

    by sonamchauhan (6546) on Friday January 14 2022, @02:20AM (#1212573)

    ...when I was sleeping?

  • (Score: 2) by cmdrklarg on Friday January 14 2022, @03:53PM

    by cmdrklarg (5048) Subscriber Badge on Friday January 14 2022, @03:53PM (#1212684)

    I suck at remembering names that haven't been burned into memory. I am however very good at remembering faces.

    Answer now is don't give in; aim for a new tomorrow.
  • (Score: 0) by Anonymous Coward on Friday January 14 2022, @11:30PM (1 child)

    by Anonymous Coward on Friday January 14 2022, @11:30PM (#1212797)

    Sometimes I think of dreams as the brain doing a scandisk. It's filling memory cells with the type of information it thinks is relevant to what you would need (to help train the brain), reading it back, and testing to see if what came back is what it put in. If not it tries to make the necessary adjustments (ie: route information around the damaged area, help correct and improve the cells, destroy the cells and make new ones, or whatever is necessary).

    • (Score: 0) by Anonymous Coward on Saturday January 15 2022, @07:13AM

      by Anonymous Coward on Saturday January 15 2022, @07:13AM (#1212876)

      Then it erases that information from your dreams so that those memory cells can be used for something useful later. That's why you forgot your dreams.