Fig 1.
Mean humor ratings for each sentence category.
Error bars represent standard error of the mean.
Fig 2.
Grand-averaged baseline-corrected EMG activity time-locked to the onset of the punchline for zygomatic (top) and corrugator (bottom) muscle sites in response to each sentence category.
Note the different scales used in each plot.
Fig 3.
Grand-averaged baseline-corrected change in HR (bpm) time-locked to the onset of the punchline for each sentence category.
The dotted line represents the mean response onset latency of the zygomatic EMG response. Asterisks represent Bonferroni-corrected significant differences between joke and non-joke stimuli at the corresponding time-points.