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Auditory processing disorder (APD), rarely known as King-Kopetzky syndrome, is a neurodevelopmental disorder affecting the way the brain processes sounds. [2] Individuals with APD usually have normal structure and function of the ear, but cannot process the information they hear in the same way as others do, which leads to difficulties in recognizing and interpreting sounds, especially the ...
Midline cerebellar syndromes can cause ocular dysmetria, a condition in which the eyes can not track an object properly and either overshoot (ahead of the object )or undershoot (lagging behind the object). Ocular dysmetria also makes it difficult to maintain fixation on a stationary object.
Comm expression turns off after the growth cone has crossed the midline; this permits Robo/Slit repulsion and prevents the growth cone from crossing the midline again. Vertebrates, on the other hand, do not possess a comm homolog ; instead they facilitate midline crossing through alternative splicing of Robo3 (aka.Rig-1).
Midline shift is a shift of the brain past its center line. [1] The sign may be evident on neuroimaging such as CT scanning . [ 1 ] The sign is considered ominous because it is commonly associated with a distortion of the brain stem that can cause serious dysfunction evidenced by abnormal posturing and failure of the pupils to constrict in ...
This article is about the optic chiasm of vertebrates, which is the best known nerve chiasm, but not every chiasm denotes a crossing of the body midline (e.g., in some invertebrates, see Chiasm (anatomy)). A midline crossing of nerves inside the brain is called a decussation (see Definition of types of crossings).
Comm promotes midline crossing by down-regulating Robo. A LPSY sorting signal motif has been shown to be required for Comm to sort Robo to endosomes, preventing it from accessing the surface of the growth cone. Thus, when Comm is expressed, axons are unaffected by the presence of Slit and are able to cross the midline. [27]
Difficulty crossing African borders is a regular source of frustration for African travelers. - Marco Longari/AFP/Getty Images. The fear of permanent migration is one of the reasons why African ...
Passes toy to other hand when offered a second object (referred to as "crossing the midline" – an important neurological development). Manages three to four objects by setting an object aside (on lap or floor) when presented with a new toy. Puts toys in mouth less often. Enjoys looking at picture books.