Which of the following features are present in Locked-in syndrome? 1. Cerebral cortex is intact. 2. Bilateral motor tracts are damaged. 3. Some response to verbal stimuli may be present. 4. Limb movement occurs in response to noxious stimuli. Select the correct answer using the code given below:
1, 2 and 3
Locked-in syndrome typically results from a ventral pontine lesion (often stroke) that damages bilateral corticospinal and corticobulbar tracts while sparing the cerebral cortex and ascending reticular activating system, so the patient is conscious and may respond to verbal stimuli via eye movements. Voluntary limb movement in response to noxious stimuli is absent due to quadriplegia, making statement 4 incorrect and 1, 2 and 3 the correct features.
Important Questions from Stroke
- Which one of the following is the appropriate scoring system used to assess the risk of stroke in patients of non-valvular chronic atrial fibrillation on oral anticoagulation?
- Contralateral homonymous lower quadrantanopia is the type of visual loss seen when the lesion is located at which one of the following anatomical locations?
A 50-year old male presents with dizziness. Which one of the following clinical findings does NOT favour a central cause?
- Constructional skills is a function of which lobe?
- Vertical gaze palsy with convergence retraction nystagmus is seen in:
