Attentional orienting triggered by gaze in schizophrenia

Area of Science:

• Cognitive Neuroscience
• Social Cognition
• Psychiatry

Background:

• Gaze perception and attention sharing are crucial for social cognition.
• Social cognition is significantly impaired in individuals with schizophrenia.
• Understanding attentional orienting in schizophrenia is key to addressing social deficits.

Purpose of the Study:

• To investigate reflexive and controlled attentional orienting triggered by gaze cues in schizophrenia.
• To compare gaze-based attention mechanisms between patients with schizophrenia and healthy controls.
• To explore the neural underpinnings of social orienting deficits in schizophrenia.

Main Methods:

• Utilized spatial cuing paradigms with non-predictive gaze cues.
• Experiment 1 assessed reflexive orienting at 100 ms and 300-800 ms stimulus-onset asynchrony (SOA).
• Experiment 2 examined controlled attention reversal at 800 ms SOA with predictive gaze cues.

Main Results:

• Schizophrenia patients, unlike controls, showed a significant congruency advantage in reflexive orienting at 100 ms SOA.
• At longer SOAs (300-800 ms), both groups exhibited similar congruency advantages.
• Healthy controls, but not patients, could reverse the reflexive advantage under controlled conditions at 800 ms SOA.

Conclusions:

• Individuals with schizophrenia demonstrate abnormally heightened reflexive orienting to gaze cues.
• This hypersensitivity in gaze-triggered attention may underlie social cognition impairments in schizophrenia.
• Findings inform neuroimaging research on the neural basis of social orienting and cognition.