An event-related potential study of older children with an early history of failure to thrive

Area of Science:

• Developmental Neuroscience
• Cognitive Psychology
• Pediatric Neurology

Background:

• Nonorganic failure to thrive (FTT) is a condition affecting child development.
• Understanding the long-term cognitive impacts of FTT is crucial for intervention.
• Event-related potentials (ERPs) offer insights into neural processing during cognitive tasks.

Purpose of the Study:

• To investigate visual word recognition in children with a history of nonorganic FTT.
• To compare neural processing (ERPs) and reaction times between FTT and control groups.
• To determine if FTT impacts the automatization of word recognition.

Main Methods:

• A primed lexical decision task was administered to elementary and junior high school children.
• Participants included children diagnosed with nonorganic FTT (n=13) and a normal control group (n=14).
• Visual event-related potentials (ERPs) and reaction times were recorded and analyzed.

Main Results:

• The FTT group demonstrated slower reaction times compared to the control group.
• The FTT group did not exhibit ERP evidence of priming in the N400 epoch.
• A late anterior component (500-650 ms) showed differences, with controls having a larger negative component to words than the FTT group.

Conclusions:

• Combined reaction time and ERP data suggest less automatized word recognition in children with a history of FTT.
• These findings highlight potential long-term cognitive differences in individuals with early nonorganic FTT.
• Further research is warranted to explore the neural underpinnings of these differences.