Curr Biol: Study reveals similarities between eye movements in humans and mice

2020 May 16 News / BioValley BIOON / --- According to a recent study published in the "CurentBiology" magazine, ArneMeyer, JohnO'Keefe and JasperPoort, who used a a miniature video camera and light motion sensors eye tracking system, head and eye movement may be recorded in mice without limiting the motion or behaviorresearchers identified two eye movement pattern associated with the movement of the head in mice having different functions: the "head tilt compensation" and "saccades and fixation" eye"Head tilt compensation" by compensating for slow changes in the head may be inclined to maintain a consistent mice world field of view, resulting in both eyes and in the opposite direction, which in humans is usually invisible"Saccades and fixation" animals eye movement during rapid rotation of the head can be stabilized line of sight, and the sight line in the direction of rotation of the transfer headThese "saccades and fixation" motion similar eye movement pattern seen in humans and monkeys, are usually (gaze) to identify the external environment through a series of stable image, and the performance of both eyes move in the same direction"Fixed" eye remain stable flow of visual information, and "panning" sports animals can select the relevant visual information(Source: Www.pixabay.com)mouse to help understand human brain function important speciesFirst, the mouse and human brain tissue and function are similar in many respects, although there are also important differencesSecond, scientists can study the brain circulation other mammals can not do detail using mice genetically unique research toolThird, scientists use genetic tool in mice to simulate the human brain diseasecomprising limiting head movement is the traditional method of human, monkey and mouse visionWhile this helps to explain the data and allow researchers to use more of the experimental method to measure, but it is unclear whether the results can be generalized to the natural behavior of the person's head and eyes can move freelyHow to understand the mice visually recognize the surrounding environment, also crucial for further refine the distance between the visual and navigationThis study verified the importance of the use of mouse models of human selection of the most important decisions for navigation and visual featuresSuch visual function damage in a variety of neurological diseases, including schizophrenia, Alzheimer's disease and strokeUse the mouse to model these diseases will allow scientists to study the potential of brain mechanisms to help identify and develop new treatments(Biovalley Bioon.com)Information Source:Researchersfindmouseandhumaneyemovementsshareimportantsimilarity Original source:ArneF.Meyeretal,TwoDistinctTypesofEye-HeadCouplinginFreelyMovingMice,CurrentBiology(2020) .DOI: 10.1016 / j.cub.2020.04.042