The Role of Attention in Somatosensory Processing: A Multi-trait, Multi-method Analysis.

The performance-based attention sample was small, and the paper says only 21 of 57 children received it, so the study may not have had enough power to detect associations. Some attention correlations report larger samples than the stated 21-child performance-based attention subset, for example n = 46, so the attention sample sizes are unclear. The children who completed attention testing were older (mean age 11.5 years) than those who did not (mean age 10.1 years), so the attention subset may not represent the whole group. All analyses were correlations, so they cannot show that attention causes sensory differences or that sensory differences cause attention problems. Many correlations were tested with modest statistical correction, so some significant associations may be unstable. The sample was school-age and high-functioning, with parents reporting tactile abnormalities, so findings may not generalize to younger children, lower-functioning children, or children without reported sensory problems. Parent-reported measures may reflect one parent’s negative reporting style, and poor performance in one task may track poor performance in another, which can create apparent associations. The study did not measure baseline arousal or autonomic state, which could influence both attention and tactile performance.

Mark Tommerdahl declared that he is co-inventor of the tactile stimulator used in the study and co-founder of Cortical Metrics, which has a license from the University of North Carolina to distribute the device.

Do not conclude that improving attention will improve sensory processing, or that parent-reported sensory problems are only attention problems. The study did not test treatment, and parent reports and lab touch tests were not significantly related.