 Also known as the lateral sulcus, it is the deep fissure which demarcates the temporal lobe

Miami University of Ohio

This is the large lateral cortical region of the cerebral hemisphere and is continuous with the parietal lobe

It is associated with processing auditory information, sense of smell and with some aspects of learning and memory 


Temporal lobe

Breedlove, S. & Watson, N. (2017). Behavioral neuroscience, eighth edition. Oxford University Press.

Behavioral Neuroscience 8th Edition

The A1 is located at the upper surface of the temporal lobes. The A1 is activated by multiple stimuli, such as speech sounds and the process of lip-reading in hearing individuals. This suggests an integration of senses to process information.

Primary auditory cortex (A1)

Sylvian Fissure

Anatomical studies of the primary auditory cortex in the right and left hemispheres show how the different hemispheres play different roles in auditory perception.

- Planum Temporale
- Left Hemisphere and Speech
- Right Hemisphere and Music Perception
- Limits of Auditory Specializations

Auditory Specializations in the Brain Hemispheres

A patient is evaluated after sustaining a head injury. While a hearing test confirms their ears are functioning correctly, they have significant difficulty understanding spoken language. Additionally, they are struggling to form new long-term memories of conversations and events that have occurred since the accident. Based on this specific combination of symptoms, which major cortical region of the brain is most likely affected? Justify your answer by linking each symptom to the region's known functions.

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