Illustrated by Lauren Boglio
welcome to spectrum‘s community newsletter is first for 2023. The researcher continued the conversation on her Twitter during the holidays, highlighting three of his threads related to the move this week.
A new method called SHAMAN (split-half analysis of movement-related networks) helps researchers performing certain brain-imaging experiments determine whether the observed brain-behavior correlations were correct. . affected by head movementsResearcher Benjamin Kay, assistant professor of neurology at Washington University School of Medicine in St. Louis, tweeted.
Ever wondered if your interesting brain-behavior correlations are affected by head movements? We created a motion impact score for detecting sham brain-behavioral associations. Excited to share my first preprints on Science Twitter! https://t.co/3gDH7zSb8K pic.twitter.com/lkcpiSvKbr
— Benjamin Kay (@ScienceBenKay) December 22, 2022
The approach, described in a December bioRxiv preprint, is that “feature-function connectivity (FC) correlations are biased by residual motion artifacts to avoid reporting false-positive results.” , write Kay and his colleagues.
In a response, Vince Calhoun, founding director of translational research in neuroimaging and data science in Atlanta, Georgia, said, “The behavior-related (and unrelated) repertoire of FC has not changed (& equally sampling) different subsets of data”
We have clarified the key assumptions underpinning the motion impact score and potential obstacles to using this for fMRI involving motor tasks. However, we think it is safe to assume that second-to-second variations in FD are independent of FC in behavioral traits for the resting state.
— Benjamin Kay (@ScienceBenKay) December 26, 2022
“you clarified key assumptions Kay agreed that using SHAMAN for functional MRI studies involving motor tasks could be an obstacle, but that it cannot be used for resting-state scans.
Matthew Heindel, a graduate student at the University of Southern California in Los Angeles, tweeted that the task he often uses in his research is “particularly prone to and extensive in motion artifacts that correlate with the task.” It is essential to evaluate this relationship”
In the neuroimaging literature of msk pathology, our task-based paradigm often involves a muscle activation task. These are particularly prone to task-related motion artifacts, and extensive evaluation of this relationship is essential. Thank you Benjamin! https://t.co/xLTjRWu2kZ
— Matt Heindel, PT, DPT, OCS (@heindelm) December 23, 2022
Switching gears to another movement-related study, researchers recently also investigated “the effects of voluntary movement on the body.” Cognitive processing in the macaque cortextweeted Camille Testard, a graduate student in Michael Pratt’s lab at the University of Pennsylvania in Philadelphia.
**STOKED** SEE OUR WORK @seb_trem with &co @NatureNeuro today!
Investigate the effects of voluntary movement on cognitive processing in the macaque cortex. https://t.co/6cbJyOpeEn
Detailed tweet below ???? https://t.co/AcwjcogpBW
— Camille Testard (@CamilleTestard) December 19, 2022
Testard and her colleagues recorded brain activity and body movements in free-ranging monkeys performing cognitive tasks and found that the two measures were closely related. explained in motionand movement is largely consistent with task variables,” Testard wrote. suggests that instead of restraining the animal during brain imaging,should be monitored To unravel cognitive signals from motor signals in monkeys! ”
In conclusion, PFC decision signals are robust to motion, opening the door to cognitive studies under naturalistic conditions. But movements, including undirected ones, need to be monitored to disentangle cognitive signals from the monkey’s movement signals! 9/11 pic.twitter.com/RCcCm578zV
— Camille Testard (@CamilleTestard) September 7, 2022
This result adds to the discussion started by @anne_churchland In response to a tweet from Testard who shared a link to the preprint in September 2022, Platt wrote:
A significant new release for the current PlattLabbers @seb_trem When @CamilleTestard We show that voluntary movement is responsible for many of the ‘cognitive’ signals in the primate PFC, yet task information can still be deciphered.Adding to the discussion started by @anne_churchland Mouse et al https://t.co/wfShfQ87t3
— Michael Pratt (@MichaelLouisPl1) September 7, 2022
Yet another study, highlighted on Twitter during the holidays, showed a connection with the motor cortex of the brain in children with autism.Diminished phonological working memory Zhenghan Qi, assistant professor of communication sciences and disability and psychology at Northeastern University in Boston, Massachusetts, tweeted.
Children with autism often exhibit diminished phonological working memory as measured by non-word repetition.our job to lead @Amanda_M_OBrienwhich investigates which brain networks (speech recognition, working memory, or speech production) underlie such difficulties. https://t.co/GGXL96yvOk
— Zhenghan Qi (@qzever) December 28, 2022
“We found that speech-motor activation associated with phonological tasks was reduced and atypical. Memory impairment in children with autismtweeted Harvard graduate student and researcher Amanda O’Brien.
I was happy to learn from @qzhever, @neurotyler, @Gabriel John& @Helen Tager while working on this project. We found reduced atypical speech-motor activation associated with phonological working memory difficulties in children with autism. See @zqhever’s thread. https://t.co/yTRsSY7ZaF
— Amanda Marie O’Brien (@Amanda_M_OBrien) December 28, 2022
“Fascinating research highlighting why we need to focus more research motor language in autism! Camille Wynn, assistant professor of communication sciences and disability at the University of Houston, Texas, tweeted:
A fascinating study that highlights why more research is needed to focus on motor language in autism! https://t.co/hTcO1XNl6N
— Camille Wynn (@CamilleJWynn) January 2, 2023
That’s it for this week’s community newsletter. If you have any interesting social his post suggestions that you have seen in the autism research field, feel free to email me. [email protected].
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