Examining Neural Dynamics During Dimensional Label Comprehension and Production as a Function of Dimensional Attention

ABSTRACTPrevious research suggests that children’s ability to label visual features (e.g. “red”) and dimensions (e.g. “color”) impacts attention to visual dimensions. The goal of this study is to investigate variations in the quality of the neural system supporting dimensional label comprehension and production in relation to children’s dimensional attention skills. The current study recruited 3- to 4-year-old from the East Tennessee area to complete dimensional label tasks for color labels while recording functional near-infrared spectroscopy (fNIRS) in order to measure hemodynamic changes in left frontal, left parietal, and left temporal cortices previously implicated in dimensional attention. Different aspects of dimensional attention were evaluated using the dimensional priming task (measuring attentional stability), the dimensional change card sort (DCCS) task (measuring flexible dimensional attention), the triad classification task (measuring selective attention), and the matching task (measuring dimensional understanding). Dimensional label learning was measured using a color Production and color Comprehension task. Results indicated that the temporal cortex was activated during the dimensional label tasks. Further, we found that activation in parietal cortex during the dimensional label tasks increased with better performance on the dimensional attention tasks. On the other hand, activation in the temporal cortex and ventrolateral prefrontal cortex during the dimensional label tasks decreased with better performance on the dimensional attention tasks. These results suggest that dimensional attention skills can reveal variations in the quality of neural representations supporting dimensional label learning. Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementThe data that support the findings of this study are available from the corresponding author upon request.