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Contralateral brain. The contralateral organization of the forebrain (Latin: contra‚ against; latus‚ side; lateral‚ sided) is the property that the hemispheres of the cerebrum and the thalamus represent mainly the contralateral side of the body. Consequently, the left side of the forebrain mostly represents the right side of the body, and ...
Contralateral (from Latin contra ' against '): on the side opposite to another structure. For example, the right arm and leg are controlled by the left, contralateral, side of the brain. Ipsilateral (from Latin ipse ' same '): on the same side as another structure. For example, the left arm is ipsilateral to the left leg. [9]
An example of this is when a person steps on a nail: The leg that is stepping on the nail pulls away, while the other leg takes the weight of the whole body. [4] The crossed extensor reflex is contralateral, meaning the reflex occurs on the opposite side of the body from the stimulus.
the eye on the opposite side (the contralateral eye) sends information to layers 1, 4 and 6. This description applies to the LGN of many primates, but not all. The sequence of layers receiving information from the ipsilateral and contralateral (opposite side of the head) eyes is different in the tarsier. [10]
In a review, it was associated to the "impulsive behaviour", handedness, mostly left and/or crossed lateralities, and above of all, the eyedness or eye-laterality as a key to detect and to relate brain lateralization which that behavioural disorder when it is crossed-eye-hand laterality [23] which has also been related in a work, reporting a ...
For example, a stroke affecting the right parietal lobe of the brain can lead to neglect for the left side of the visual field, causing a patient with neglect to behave as if the left side of sensory space is nonexistent (although they can still turn left). In an extreme case, a patient with neglect might fail to eat the food on the left half ...
The best example of an established lateralization is that of Broca's and Wernicke's areas, where both are often found exclusively on the left hemisphere. Function lateralization, such as semantics , intonation , accentuation , and prosody , has since been called into question and largely been found to have a neuronal basis in both hemispheres ...
Each cerebral hemisphere only receives information from one half of the visual field—specifically, from the contralateral hemifield. For example, retinal projections from ganglion cells in the left eye that receive information from the left visual field cross to the right hemisphere at the optic chiasm; while information from the right visual ...