Occipital lobe

What is the occipital lobe? 

The occipital lobe is located at the posterior section of the brain and primarily comprises the brain’s visual cortices. There are two streams of visual information through the visual primary and association cortices, which deal separately with broad object details and motion, and fine detail and colours.

What is the evidence for occipital lobe alterations?

Moderate quality evidence suggests reduced white matter integrity in the occipital cortex and fusiform gyrus in people with schizophrenia compared to controls. Moderate to low quality evidence suggest a higher frequency of abnormal (reversed) asymmetry in the occipital lobe in people with schizophrenia.

Moderate quality evidence suggests reduced activity in the middle occipital gyrus during executive functioning tasks in people with schizophrenia. There is reduced functional activity in the right lingual gyrus during episodic memory encoding, and reduced activation of the right cuneus and fusiform gyrus during episodic memory retrieval. There is decreased activation during emotion processing tasks in the fusiform, lentiform and middle occipital gyri of people with schizophrenia. During explicit emotion tasks, there is decreased activation in the fusiform gyrus, and during implicit emotion tasks, there is decreased activation in the middle occipital gyris.

March 2019

Last updated at: 1:25 am, 29th March 2019
To view documentation related to this topic download the files below
Fact Sheet Technical Commentary

NeuRA Libraries

Title Colour Legend:
Green - Topic summary is available.
Orange - Topic summary is being compiled.
Red - Topic summary has no current systematic review available.