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Prosopagnosia

Prosopagnosia

Prosopagnosia, also known as face blindness, is the inability to recognize faces. In severe cases, individuals with prosopagnosia may not recognize close family members, including parents and spouses, by their faces. For instance, someone with prosopagnosia might walk past their child in a crowd, only realizing their mistake upon noticing their child's distinctive backpack or favorite jacket. Prosopagnosia specifically impairs facial recognition, while the recognition of other objects or...

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Postsurgical Disfigurement Influences Disgust Recognition: A Case-Control Study.

Quentin Lisan¹, Nathalie George², Stephane Hans¹

¹Université Paris Descartes, Sorbonne Paris Cité, Faculté de médecine, Paris, France; AP-HP, European Hospital Georges Pompidou, department of Otolaryngology, Head and Neck surgery, Paris, France.

|November 6, 2017

Summary

This summary is machine-generated.

Individuals who underwent total laryngectomy (surgical removal of the voice box) showed impaired recognition of disgust facial expressions. This suggests that laryngeal cancer treatment may affect emotion perception.

Keywords:

cancer disfigurement emotion laryngeal cancer psycho-oncology

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Area of Science:

Psychology
Otolaryngology
Neuroscience

Background:

Emotion recognition is crucial for social interaction.
Little is known about how emotion recognition is altered in individuals prone to disgust, such as those with laryngeal cancer.

Purpose of the Study:

To investigate if total laryngectomy affects the recognition of disgust facial expressions.
To compare disgust recognition in patients treated with total laryngectomy versus chemoradiation therapy only.

Main Methods:

29 patients with advanced laryngeal cancer were recruited (17 total laryngectomy, 12 chemoradiation only).
Participants viewed facial expressions of disgust at varying intensities.
Emotion recognition accuracy and recognition thresholds were measured.

Main Results:

Patients with total laryngectomy had a higher threshold for recognizing disgust (needed more images) compared to controls.
Total laryngectomy patients demonstrated a lower success rate in correctly identifying disgust expressions.
Aesthetic impairment of the head and neck correlated with poorer disgust recognition.

Conclusions:

Total laryngectomy appears to impair disgust recognition.
Findings may be linked to perceptual adaptation, habituation, or emotion regulation strategies.
Further research is needed to understand the mechanisms underlying altered emotion perception post-laryngectomy.