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. 2017 Aug 1;12(8):e0180395. doi: 10.1371/journal.pone.0180395

Table 2. The main behavioural coding categories and subvariables.

Coding category Subvariable
1. Eye gaze Eyes closed
Looking at ME’s face or body
Looking elsewhere
Can’t tell
2. Facial expressions Neutral
Smiling
Frowning
Surprise
3. Vocalisations Vocalisation
Laughter
Silence
Other (e.g. coughing)
4. Gestures Pointing
Nodding
Shaking head
Other
5. Physical contact Contact occurs
No contact
Can’t tell
6. Imitation Person with dementia imitates ME