Alexithymia does not explain facial expression recognition difficulties across the dark triad spectrum

Area of Science:

• Psychology
• Social Psychology
• Personality Psychology

Background:

• The dark triad (narcissism, psychopathy, Machiavellianism) is linked to impaired facial expression recognition.
• Alexithymia, associated with the dark triad, may explain these deficits in autism spectrum individuals.
• The current study investigates if alexithymia explains expression recognition difficulties in individuals with dark triad traits.

Purpose of the Study:

• To test the alexithymia hypothesis for expression recognition difficulties in individuals with dark triad traits.
• To determine if alexithymia predicts unique variance in facial expression discrimination and labeling abilities beyond dark triad traits.
• To explore the independent contributions of dark triad, autistic, and alexithymic traits to expression recognition.

Main Methods:

• An individual differences approach was used.
• Participants' levels of dark triad traits, autistic traits, and alexithymic traits were assessed.
• Facial expression discrimination and labeling abilities were measured.
• Linear regression models examined unique predictive variance.

Main Results:

• Autistic traits, alexithymic traits, and dark triad traits all correlated with expression recognition.
• Dark triad traits, autistic traits, and general cognitive ability uniquely predicted expression recognition.
• Alexithymic traits did not predict unique variance in expression recognition ability.

Conclusions:

• Dark triad and autistic traits contribute uniquely to facial expression recognition.
• Alexithymia does not uniquely explain expression recognition difficulties in individuals with dark triad traits.
• General cognitive ability also plays a role in expression recognition.