Slide 2:
Somatotopy of action observation (mirror neurons) speech perception, observation of tactile stimulation, object-related sounds
Bodily produced actions in three modalities – mouth, hand and foot.
Widespread evidence that motor cortices are active during passive perception of speech but harder to prove role
Comparing passive listening of speech sounds (/f/ /ch/ /k/ /t/ ) and non speech sounds (clicks) produced by the mouth. These are familiar and can be recognised bilabial (‘kiss’), alveolar (‘tsk’), velar (‘clop’ and lateral (‘giddy-up’). Hand sounds (claps, finger clicks). Feet sounds (footsteps on floor, stairs). Baseline – signal correlated noise versions.
Experimental design.. :
Experimental design.. 6 conditions (speech, clicks, hand sounds, foot sounds, SCN and silence)
Sparse design, pseudo jittered, 30 events, 6 conditions, 9sec TR: 27 minutes Include localizer scan at end – cued to move mouth, hand or foot
Include post-scan behavioural testing – any relationship between identification and activation.
Include observation of same actions?
Experimental design.. :
Experimental design.. Localiser runs (AT END OF SCAN)
Are the regions involved in perceiving action sounds, the same as those involved in producing those actions
Block design (silent)
Hand movement (fist clench)
Mouth movement (open and shut mouth)
Foot crunch
Auditory localisers?
Rest 21sec block: repeated stimulation 3 sec instruction 4 repeats per condition: ~ 28 events for run 11 minutes
Experimental design.. :
Experimental design.. Localiser runs (AT END OF SCAN)
Are the regions involved in perceiving action sounds, the same as those involved in producing those actions
Block design (silent)
Observe hand movement (clap, finger click)
Observe mouth movement (speech sounds)
Observe mouth movement (non-speech sounds)
Observe foot movement (bare foot steps)
Observe moving dots or biological motion?
Rest 21sec block: repeated stimulation 3 sec instruction 4 repeats per condition: ~ 28 events for run 11 minutes