In split-brain patients, if an object is presented in the right visual field, what can they do?

When an object is presented in the right visual field of a split-brain patient, the information from that visual field is processed by the left hemisphere of the brain, which is responsible for language and verbal processing in most individuals. As a result, these patients can verbally name the object they see. The left hemisphere's functions include speech production and comprehension, making it possible for the individual to articulate what they see when an object is presented to the right visual field.

In contrast, when an object is presented in the left visual field, the right hemisphere processes the visual information, which does not typically have direct access to the language centers present in the left hemisphere. This can lead to difficulties in naming the object while potentially allowing the patient to understand or recognize the object without being able to verbalize it.