A confirmatory factor analysis of hyperfocusing and inhibitory control as separable cognitive domains in schizophrenia.

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= 63) to determine whether executive function and hyperfocusing reflect separate underlying factors or a single general factor. Hyperfocusing tasks were change localization (measuring WM capacity), useful field of view (measuring ability to spread attention broadly), dot probe expectancy task, and within-trial repulsion (measuring repulsive interactions between WM representations). We also included three standard inhibitory control tasks: antisaccade, stop signal, and oculomotor stop signal. Using this data set, we conducted a confirmatory factor analysis to evaluate whether a two-factor solution with separate hyperfocusing and inhibitory control factors provided a better fit to the data than a solution with a single generalized deficit factor. We found that the two-factor model fit the data significantly better than the one-factor model. In the two-factor solution, the hyperfocusing factor scores were significantly greater in PSZ than in HCS. In addition, hyperfocusing and inhibitory control factor scores accounted for unique variance in a measure of overall cognitive ability. These results provide statistical support for the hypothesis that hyperfocusing is a coherent latent variable that accounts for covariance across a broad range of tasks and is separable from inhibitory control. (PsycInfo Database Record (c) 2026 APA, all rights reserved).

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