Independent replications reveal anterior and posterior cingulate cortex activation underlying state...

Area of Science:

• Neuroscience
• Cognitive Psychology
• Psychiatry

Background:

• Anxiety, characterized by anticipating negative outcomes, can disrupt cognitive functions like memory recall.
• Previous research suggests anxiety impacts emotional face processing, but replicability and causal links require further investigation.

Purpose of the Study:

• To replicate findings on how induced state anxiety affects emotional face encoding and recognition in a general population.
• To investigate the neural correlates of anxiety-induced face recognition deficits using fMRI.

Main Methods:

• A causal state anxiety induction (threat-of-shock) was used in a large sample (n=92) of asymptomatic individuals.
• Face recognition tasks were administered during anxious and neutral states.
• Whole-brain functional magnetic resonance imaging (fMRI) was employed to examine neural activity.
• A meta-analysis across three studies (n=211) was conducted to strengthen findings.

Main Results:

• Replication of impaired recognition for faces encoded during threat-of-shock-induced anxiety.
• fMRI revealed enhanced activation in the posterior cingulate cortex (PCC) during anxiety.
• Meta-analysis showed PCC and anterior cingulate cortex (ACC) involvement, with hippocampus activation when encoding and retrieval states matched.

Conclusions:

• State anxiety demonstrably impairs face recognition, supporting prior research.
• The cingulate cortex, particularly PCC and ACC, plays a crucial role in anxiety-related face recognition deficits.
• Attentional demands of anxiety may interfere with processing emotional stimuli during encoding.