A new emotional stroop-like task: application to the Down syndrome population

Area of Science:

• Cognitive Psychology
• Developmental Neuroscience
• Genetics

Background:

• Down syndrome (DS) is associated with cognitive differences, particularly in executive functions.
• Emotional processing and inhibition are crucial cognitive domains affected in DS.
• Existing research often uses child-based paradigms, necessitating adapted tools for adult DS populations.

Purpose of the Study:

• To evaluate a novel emotional Stroop-like paradigm for assessing inhibition in adults with Down syndrome (DS).
• To compare the emotional inhibition performance of adults with DS against a matched control group of typically developing children.
• To investigate response latency patterns as an indicator of cognitive processing in DS.

Main Methods:

• A computerized emotional Stroop-like task was administered to 49 adults with DS and a matched control group.
• Stimuli included both neutral and emotional content presented across two identical tasks.
• Performance was measured by accuracy in the inhibition condition and response latencies for both conditions.

Main Results:

• The DS group exhibited significantly poorer performance on emotional material compared to the control group under inhibition conditions.
• Both groups showed slower response latencies for emotional versus neutral stimuli.
• DS participants demonstrated a unique response latency pattern, showing improvement over time, unlike the stable latencies of the control group.

Conclusions:

• The emotional Stroop-like paradigm is applicable for assessing inhibition in adults with DS.
• Adults with DS experience greater difficulty with emotional inhibition compared to typically developing children.
• Response latency dynamics offer insights into the adaptive cognitive strategies employed by individuals with DS during tasks.