Wiktionary
n. (context anatomy English) one of the four major divisions of the cerebrum of the brain, located at the back of the head
WordNet
n. that part of the cerebral cortex in either hemisphere of the brain lying in the back of the head
Wikipedia
The occipital lobe is one of the four major lobes of the cerebral cortex in the brain of mammals. The occipital lobe is the visual processing center of the mammalian brain containing most of the anatomical region of the visual cortex. The primary visual cortex is Brodmann area 17, commonly called V1 (visual one). Human V1 is located on the medial side of the occipital lobe within the calcarine sulcus; the full extent of V1 often continues onto the posterior pole of the occipital lobe. V1 is often also called striate cortex because it can be identified by a large stripe of myelin, the Stria of Gennari. Visually driven regions outside V1 are called extrastriate cortex. There are many extrastriate regions, and these are specialized for different visual tasks, such as visuospatial processing, color differentiation, and motion perception. The name derives from the overlying occipital bone, which is named from the Latin ob, behind, and caput, the head. Bilateral lesions of the occipital lobe can lead to cortical blindness (See Anton's syndrome).
Usage examples of "occipital lobe".
In one case of electrical stimulation of the occipital lobe, which is concerned with vision, the patient reported Seeing a fluttering butterfly of such compelling reality that he stretched out his hand from the operating table to catch it.
The photoreceptors when stimulated by light initiate impulses in the nearby nerve cells, and the message, conducted to the brain by the optic nerve and eventually reaching the optic area in the occipital lobe, is interpreted as light.
Explosive type with disruptions of the table of the skull and lacerations of the right occipital lobe of the brain.
Keiko O'Brien had a few, confusing glimpses of light, vision, pieces broken apart, the shattered remains of her brain unable to mentally process the stimulus sent by her visual cortex, still intact in her occipital lobe.
He paused momentarily and again she felt a tingle, this time in her left occipital lobe.
The brain tissue came from the occipital lobe, they reckon from the left rear of her head.
She was a woman in her sixties who had been diagnosed with a slow-growing brain tumor centered in the left occipital lobe.
After establishing residence in the occipital lobe, a brain leech supposedly took control of its human host, imprisoning the mind, using the body as its own.