Neural Mechanisms of Humor Processing

Humor processing engages a distributed network that integrates cognitive appraisal, affective response and motor expression. Initial detection of an incongruity in a humorous stimulus recruits regions involved in attentional set‐shifting and semantic integration, notably the dorsolateral prefrontal cortex and middle temporal gyrus. Resolution of the incongruity often engages theory‐of‐mind and perspective‐taking regions such as the temporoparietal junction and precuneus. Successful resolution culminates in activation of mesocorticolimbic reward pathways—including the nucleus accumbens, amygdala and ventral tegmental area—where hedonic enjoyment is computed. Concurrently, motor readiness areas such as the supplementary motor area and premotor cortex prepare the facial and vocal components of laughter. This four‐stage cascade—expectation, incongruity detection, resolution and elaboration—provides a unified framework for understanding variations in humour style, developmental trajectories and individual differences. Beyond advancing basic neuroscience, these insights bear on clinical domains such as depressive disorders, autism spectrum conditions and social anxiety, where humour appreciation is often impaired. They also inform educational and therapeutic interventions that harness humour to enhance learning, social bonding and well‐being.

Research from Nature Portfolio

Studies of individuals with gelotophobia, or the fear of being laughed at, reveal altered engagement of reward circuits. Gelotophobics show heightened activity in dorsal corticostriatal circuits but diminished activation in the ventral mesocorticolimbic network when processing both hostile and benign jokes, indicating increased top-down control and reduced bottom-up affective response.

Comparative investigations of humour and monetary rewards demonstrate a clear dissociation in neural processing. Monetary cues and outcomes predominantly activate nucleus accumbens–anterior cingulate circuits associated with reward anticipation and motivation, whereas humorous rewards evoke stronger amygdala–midbrain engagement during the enjoyment phase, underscoring a modality-specific hedonic pathway for social rewards.

Neural Mechanisms of Humor Processing publication trend

The graph below shows the total number of articles in neural mechanisms of humor processing across all publications each year (not limited to Nature Index journals).

Technical terms

Mesocorticolimbic system: A dopaminergic network spanning the ventral tegmental area, nucleus accumbens and prefrontal cortex critical for reward processing.

Dorsolateral prefrontal cortex (dlPFC): A frontal region implicated in executive control, working memory and incongruity resolution.

Temporoparietal junction (TPJ): A convergence zone for social cognition and theory-of-mind functions, vital for perspective-taking.

Nucleus accumbens (NAc): A striatal nucleus central to reward anticipation and motivational drive.

Psychophysiological interaction (PPI): An analysis method that assesses context-dependent changes in functional connectivity between brain regions.

References

1. Neural Correlates of Deficits in Humor Appreciation in Gelotophobics. Scientific Reports (2016).
2. Dissociation between the processing of humorous and monetary rewards in the ‘motivation’ and ‘hedonic’ brains. Scientific Reports (2018).
3. Verification of the Four-Stage Model of Humor Processing: Evidence from an fMRI Study by Three-Element Verbal Jokes. Brain Sciences (2023).
4. Uncover the Offensive Side of Disparagement Humor: An fMRI Study. Frontiers in Psychology (2021).
5. Effective connectivity of the amygdala during the consumption of erotic, sexual humor, and monetary rewards with a DCM-PEB approach. PLOS ONE (2022).