Movement without senses coded into neurons, says University of Toronto researcher

An animal's ability to move - like the kicking of a developing baby or the crawling and walking of insects - is intrinsic, not dependent on sensory stimulation, says a University of Toronto neurobiologist.

"All animals, from worms to humans, have rhythmic movements that underlie locomotion," says Max Suster, a post-doctoral fellow at U of T at Mississauga and lead author of a paper in the March 14 issue of Nature. "The question is whether this ability is built into the neurons of central nervous systems or whether sensory input from the outside world helps organize those movements so that they are suitable to real life. Our research suggests that the development of embryonic motor systems is largely intrinsic to central nervous systems and not dependent on sensory cues like touch or smell."

Suster and University of Cambridge professor Michael Bate examined the development of rhythmical movements in a type of fruit fly known as Drosophila. They compared fly embryos that received sensory input to those deprived of stimulation through methods of genetic engineering.

"We discovered, somewhat surprisingly, that the ones without sensory references still performed enough movements to get out of their egg case and crawl," says Suster. "The rhythmic movements were essentially the same, regardless of whether the embryo received stimuli or not. The amazing thing is that it was demonstrated so clearly, something that we haven't seen before."

Movements generally have certain rhythmic properties to them and it has been known for some time that central pattern generators - specialized groups of neurons in the nervous system - produce these rhythmic movements, which are essential for all forms of locomotion and reflexes, says Suster.

He says all animals, including humans, have fundamentally the same kinds of rhythmic movements. "We all depend on these types of circuits or central pattern generators. What the research tells us is that even

Contact: Janet Wong
University of Toronto

Page: 1 2

Related biology news :

1. Movement of single molecules imaged in live organism
2. Fossil Footprints Show Foot-Movement Similarity In Dinosaurs And Birds
3. New Satellite Tags Track Movements Of Atlantic Bluefin Tuna
4. Surprising Protein Movement Seen In Cells
5. Improving crops without genetic modification natural variation holds the key
6. Life goes on without vital DNA
7. Nonalcoholic beverages may impart cardiovascular benefits without the negative effects of alcohol
8. Laser technique used to build micro-polymeric structure on a human hair, without harming it
9. Governing commons still a struggle, but fight not without hope, according to new report
10. Cells ability to live without oxygen give clues for treating major diseases
11. Acoustic technique could disinfect medical instruments without heat or harsh chemicals

Post Your Comments:

(Date:4/5/2017)... -- Today HYPR Corp. , leading innovator in ... the HYPR platform is officially FIDO® Certified . ... that empowers biometric authentication across Fortune 500 enterprises and ... 15 million users across the financial services industry, however ... suites and physical access represent a growing portion of ...
(Date:3/30/2017)...  On April 6-7, 2017, Sequencing.com will host the ... hackathon at Microsoft,s headquarters in Redmond, Washington ... developing health and wellness apps that provide a unique, ... is the first hackathon for personal genomics and ... in the genomics, tech and health industries are sending ...
(Date:3/28/2017)... The report "Video Surveillance Market ... Storage Devices), Software (Video Analytics, VMS), and Service (VSaaS, ... to 2022", published by MarketsandMarkets, the market was valued ... to reach USD 75.64 Billion by 2022, at a ... year considered for the study is 2016 and the ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... October 11, 2017 , ... Disappearing forests and increased emissions are the ... million people each year. Especially those living in larger cities are affected by air ... one of the most pollution-affected countries globally - decided to take action. , “I ...
(Date:10/10/2017)... ... October 10, 2017 , ... ... company advancing targeted antibody-drug conjugate (ADC) therapeutics, today confirmed licensing rights that ... Polymerized Liposomal Nanoparticle), a technology developed in collaboration with Children’s Hospital Los ...
(Date:10/10/2017)... , Oct. 10, 2017 SomaGenics announced ... the NIH to develop RealSeq®-SC (Single Cell), expected to ... profiling small RNAs (including microRNAs) from single cells using ... highlights the need to accelerate development of approaches to ... "New techniques for measuring levels of ...
(Date:10/9/2017)... , ... October 09, 2017 , ... The award-winning American ... broadcast first quarter 2018. American Farmer airs Tuesdays at 8:30aET on RFD-TV. , ... faced with the challenge of how to continue to feed a growing nation. At ...
Breaking Biology Technology:
Cached News: