OBJECTIVES: The aim was to assess, using sophisticated experimental methods, the amount of interference on a Stroop task in patients with eating disorders, under conditions of blocked and mixed stimulus presentation. METHODS: Patients with eating disorders and non-patients named the color in which a word was displayed. Words came from an experimental category (food/eating, weight/shape, "emotion," or affectively neutral word) or from a matched set of unrelated control words. Color-naming latencies were compared in a blocked condition, with words from just one set in each block, and in a mixed condition, with a mixture of word types in each block. RESULTS: In the mixed condition, patients took longer to color-name food/eating and weight/shape words than control words. With blocked presentation this effect was magnified; and patients with bulimia nervosa also showed increased naming-latency for "emotion" words. Non-patients showed neither effect and no group showed interference for the affectively neutral category. Patients' interference effects correlated reliably with self-reported depression and anxiety. DISCUSSION: Sources of interference and methodological and diagnostic implications are discussed.
OBJECTIVES: The aim was to assess, using sophisticated experimental methods, the amount of interference on a Stroop task in patients with eating disorders, under conditions of blocked and mixed stimulus presentation. METHODS:Patients with eating disorders and non-patients named the color in which a word was displayed. Words came from an experimental category (food/eating, weight/shape, "emotion," or affectively neutral word) or from a matched set of unrelated control words. Color-naming latencies were compared in a blocked condition, with words from just one set in each block, and in a mixed condition, with a mixture of word types in each block. RESULTS: In the mixed condition, patients took longer to color-name food/eating and weight/shape words than control words. With blocked presentation this effect was magnified; and patients with bulimia nervosa also showed increased naming-latency for "emotion" words. Non-patients showed neither effect and no group showed interference for the affectively neutral category. Patients' interference effects correlated reliably with self-reported depression and anxiety. DISCUSSION: Sources of interference and methodological and diagnostic implications are discussed.
Authors: Monika Stojek; Lisa M Shank; Anna Vannucci; Diana M Bongiorno; Eric E Nelson; Andrew J Waters; Scott G Engel; Kerri N Boutelle; Daniel S Pine; Jack A Yanovski; Marian Tanofsky-Kraff Journal: Appetite Date: 2018-01-31 Impact factor: 3.868
Authors: Rachel Marsh; Joanna E Steinglass; Andrew J Gerber; Kara Graziano O'Leary; Zhishun Wang; David Murphy; B Timothy Walsh; Bradley S Peterson Journal: Arch Gen Psychiatry Date: 2009-01
Authors: Christina Ralph-Nearman; Margaret Achee; Rachel Lapidus; Jennifer L Stewart; Ruth Filik Journal: Brain Behav Date: 2019-11-07 Impact factor: 2.708