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Table 2 Patients’ clinical characteristics

From: The challenge of controlling an auditory BCI in the case of severe motor disability

No.

Pathology

Etiology (LIS) or

onset (ALS)

Age (range of years)

Pathology duration

Communication code

ALS-FR scale

LIS1A

LIS

Hemorrhagic stroke in the pons

50–59

3 years

Yes–No code with vertical eyes movements, alphabetic code, no high-tech devices

NA

LIS2

LIS

Traumatic with brainstem injury

30–39

3 years

Yes–No code with vertical eyes movements, alphabetic code, no high-tech devices

NA

LIS3

LIS

Ischemia

(post-traumatic) with brainstem injury

60–69

32 years

Yes–No code with vertical eyes movements, alphabetic code, eye-tracker and chin contactor

NA

ALS1

ALS

Bulbar onset

50–59

6 years

Yes–No code with head movements, chin contactor

17/48

ALS2

ALS

Limbs onset

30–39

5 years

Yes–No code with eyes-movements with a fluctuant reliability, eye-tracker at test

0/48

ALS3

ALS

Limbs onset

50–59

4 years

Yes–No code with head movements, alphabetic code by laser pointing with head, no high-tech devices

18/48

ALS4

ALS

Limbs onset

60–69

25 years

Phonation (interpretation with help of caregiver), eye-tracker

23/48

  1. ALS amyotrophic lateral sclerosis, ALS-FR Scale ALS functional rating scale, LIS locked-in syndrome
  2. A) Patient LIS1 presented a unilateral deafness (pre-existing before the brainstem injury), so he underwent a particular protocol with no lateralization of the stimulations