Humour processing deficits in individuals with social anhedonia

Hypo- and hyper-activation in frontotemporal lobe during humor processing in patients with first episode schizophrenia

BACKGROUND

Patients with schizophrenia present difficulties in humor recognition and appreciation, but the neural mechanism of these deficits remains unclear. This study aimed to elucidate neural substrates underlying humor processing in patients with first episode schizophrenia (FES).

METHODS

This study recruited 40 patients with FES (illness duration ≤ 4 years) and 31 healthy controls matching for age, gender and education level. Participants completed a fMRI verbal humor processing paradigm comprising 96 stories, half for funny punch-line condition and the other half for unfunny condition. Participants were required to judge whether the story was funny or not. Signal detection theory (SDT) analysis was used to calculate d' and β values which represented sensitivity and inner criteria for humor signals respectively. The funny-unfunny contrast was analyzed to identify the brain regions related with humor processing. d' and β values were put into the imaging regression analysis.

RESULTS

Patients with FES showed significantly lower hit rate and sensitivity of humor signals (d'). At the neural level, patients with FES hypo-activated in ventral medial prefrontal cortex (vmPFC) and anterior cingulate cortex (ACC) while hyper-activated in middle temporal gyrus (MTG) and superior temporal gyrus (STG) compared to controls. In addition, activity in vmPFC and ACC was positively associated with d' and β values, while activity in STG was positively associated with β values in the clinical group.

CONCLUSIONS

Patients with FES exhibited decreased sensitivity to humor signals. Hypo-activation in frontal regions and hyper-activation in temporal regions were associated with the humor processing deficits.

Mental health memes: beneficial or aversive in relation to psychiatric symptoms?

Composed of an image and short caption, internet memes visually depict an element of a culture or behavioural system, in a humorous way that contextually relates to a particular demographic. Typically, they are rapidly shared, with many variations of the original. Online interaction with internet memes has become a crucial psychosocial aspect of digital culture, which have recently become well established in popular media by consistently maintaining culturally topical and socially salient references. Increasingly, many pages are dedicated to sharing memes related to the symptom experience of specific psychiatric disorders. Despite their popularity, the individual motivation for the observation and sharing of mental health memes remains poorly understood. While several psychiatrists and media outlets perceive internet memes related to mental health difficulties to be associated with adverse consequences, the empirical evidence fails to support this notion. Among individuals experiencing psychiatric difficulties, we explore whether interacting with mental health memes involves adverse consequences, or rather serve as a beneficial coping mechanism. Here, evaluation of the literature indicates that most psychiatrically vulnerable individuals report positive experiences when engaging with such memes. More specifically, they are perceived to facilitate a humorous take on a negative experience and situation, and the perception of peer-support through social bonds with others experiencing similar symptoms. While mental health memes typically depict dark and negative humour, their proximal nature to those experiencing psychiatric symptoms may be considered contextually positive. As such, to conclude, we discuss the role of contextual humour in facilitating cognitive reappraisal of negative thoughts and experiences. Furthermore, we set an agenda to address key methodological limitations of existing work while providing suggestions for future research.

Internet memes related to the COVID-19 pandemic as a potential coping mechanism for anxiety

This study examined whether significantly anxious individuals differed from non-anxious individuals in their perceptual ratings of internet memes related to the Covid-19 pandemic, whilst considering the mediating role of emotion regulation. Eighty individuals presenting clinically significant anxiety symptoms (indicating ≥ 15 on the GAD-7) and 80 non-anxious controls (indicating ≤ 4) rated the emotional valance, humour, relatability, shareability, and offensiveness of 45 Covid-19 internet memes. A measure of emotion regulation difficulties was also completed. The perception of humour, relatability, and shareability were all greater amongst anxious individuals relative to non-anxious controls. These differences were not mediated by emotion regulation deficits. Internet memes related to the current Covid-19 pandemic may tentatively serve as coping mechanism for individuals experiencing severe symptoms of anxiety.