What do dorsal and ventral streams do?
From their model, the ventral stream processes visual information for the purpose of visual perception (“vision for perception”), while the dorsal stream processes visual information for the purpose of executing movements (“vision for action”).
What is the difference between the dorsal and ventral visual streams?
The ventral stream (or “vision-for-perception” pathway) is believed to mainly subserve recognition and discrimination of visual shapes and objects, whereas the dorsal stream (or “vision-for-action” pathway) has been primarily associated with visually guided reaching and grasping based on the moment-to-moment analysis …
What is the ventral stream in psychology?
a pathway that carries visual information from the primary visual cortex to the temporal lobe. According to one widely-accepted hypothesis, the ventral stream (so named because of the path it takes along the ventral side of the brain) carries information related to object form and recognition.
What is a dorsal stream in psychology?
a pathway that carries visual information from the primary visual cortex to the parietal lobe. It is sometimes called the “where” pathway. …
Where is the dorsal stream?
Dorsal stream Also known as the parietal stream, the “where” stream, or the “how” stream, this pathway stretches from the primary visual cortex (V1) in the occipital lobe forward into the parietal lobe.
Why are there two cortical streams?
But the eye does not just send input to the superior colliculus and the visual cortex. Thus, these two essential and complementary aspects of visual perception were allocated to separate processing ‘streams’.
What does dorsal mean in psychology?
adj. denoting the hind region or the back surface of the body.
Where is the dorsal visual pathway?
Dorsal visual pathway: this pathway extends from the primary visual cortex (V1) in the occipital lobe to the parietal lobe. The dorsal pathway is subdivided by the intraparietal sulcus (IPS) into several main sectors including the superior parietal lobule, inferior parietal lobule, and the supramarginal gyrus.
Where is the ventral pathway?
The ventral pathway was described as coursing through the occipitotemporal cortex to the anterior part of the inferior temporal gyrus (area TE)[1, 2], with a likely extension into the ventrolateral prefrontal cortex (VLPFC/area FDv)[3].
What is another name for the dorsal stream?
Where does the ventral stream end?
The Dorsal Stream ends in the posterior parietal complex whereas the Ventral Stream ends at the inferior parietal complex.
What is dorsal in the brain?
When used in reference to the nervous system, dorsal refers to the back when discussing the spinal cord. However, above the junction of the midbrain and diencephalon, dorsal refers instead to the upper or superior portion of the brain.