Split Brain Flashcards
(47 cards)
What is the most severe case of epilepsy known as?
Grand Mal
A Grand Mal seizure involves uncontrollable movements and loss of consciousness.
What can control a lot of epilepsy today?
Medication
Advances in medical treatments allow many individuals with epilepsy to manage their condition effectively.
What happens during a Grand Mal seizure?
Millions of brain cells fire extensively
This firing can begin in one hemisphere and spread to the other through the Corpus Callosum.
Fill in the blank: The _______ connects the two hemispheres of the brain.
Corpus Callosum
The Corpus Callosum is crucial for interhemispheric communication.
True or False: A Grand Mal seizure can begin in one hemisphere of the brain.
True
The seizure activity can spread from one hemisphere to the other.
What do both eyes send information to?
Each visual field.
Each eye has a left and right visual field.
Which visual field of each eye sends information to the right hemisphere?
Left visual field (LVF).
Which visual field of each eye sends information to the left hemisphere?
Right visual field (RVF).
What normally shares information between the two hemispheres?
Corpus callosum.
What happens in split brain patients regarding visual information?
Information does not share between hemispheres.
What can be observed when visual fields are restricted in split brain patients?
Differences between left and right hemisphere functioning.
In everyday life, do split brain patients show problems with visual processing?
No, because the eyes are constantly moving.
What is the primary focus of split brain research?
The split visual field
This research investigates how the two hemispheres of the brain process information separately.
Describe the setup used in split brain research.
Participants are seated in front of a screen, gazing at a fixed point in the center
This setup ensures that only one visual field is stimulated at a time.
How are visual stimuli presented in split brain research?
Visual stimuli are projected onto the screen either to the right or left visual field at a very high speed
This rapid presentation prevents the participant from moving their head.
What is the participant’s ability to process images in split brain research?
Participants can only process the image in the visual field where it was placed
This limitation is crucial for studying lateralization of brain function.
What is the outcome when words are projected to the LVF?
Participants did not seem to register the words
This indicates that the right hemisphere does not process language effectively.
What hemisphere is responsible for language according to split brain research?
The left hemisphere
Words need to be presented to the RVF for effective language processing.
What does the term ‘hemispheric lateralisation’ refer to?
The specialization of functions in each hemisphere of the brain
Each hemisphere is associated with different cognitive processes.
True or False: Words presented to the LVF are effectively processed for language.
False
Words need to be presented to the RVF to be registered.
Fill in the blank: The left hemisphere is responsible for _______.
language
What is the significance of the RVF in split brain research?
It allows for effective language processing
The right visual field connects to the left hemisphere.
What concept is illustrated by the findings of split brain research?
The division of cognitive functions between the two hemispheres
This research highlights how each hemisphere has specialized roles.
What does split brain research indicate about the right hemisphere’s language ability?
The right hemisphere has some language ability for understanding words, even if it cannot produce speech.
This was demonstrated when patients selected the correct object after it was presented to the left visual field, which is processed by the right hemisphere.
