Failure was hypothesized as an antecedent of a reflective style of responding and a quick response as an antecedent of an impulsive style. Failure was manipulated with an instruction to respond correctly (conditioned instruction), and effects and scanning strategies on the MFFT were assessed. The impulsives showed much higher rate in the standard-figure fixation than the reflectives on the MFFT and this result made previous studies acceptable. Scanning strategy patterns were returns 1, 2 and 3, runs 1, 2 and 3. The reflectives showed higher rate than the impulsives in each of these patterns in the normal instruction condition of the first three items (1-3). But, these differences were not found in the last three items (10-12) in the conditioned instruction. Subsequently several implications of these results for the scanning strategy patterns of cognitive style were discussed.