TY - JOUR PY - 1994// TI - Orienting of attention in deafferented patients JO - Neuropsychologia A1 - Nougier, V. A1 - Rossi, B. A1 - Bard, C. A1 - Fluery, M. A1 - Teasdale, N. A1 - Cole, J. A1 - Lamarre, Y. SP - 1079 EP - 1088 VL - 32 IS - 9 N2 - Visual attentional processes were compared in two deafferented patients and 11 normal subjects. Two consecutive stimuli were presented in rapid succession in one of two locations. A peripheral cue first oriented attention to one location where a response was requested. After 100 msec, a second response was required at either the same or opposite location (valid vs invalid cue). Four probabilities of valid cue occurrence were presented: 100, 80, 50 and 20%. Results showed (1) faster reaction times for the second response on cued than on uncued signals; (2) greater attentional effects with increased cue probability; (3) smaller attentional effects in patients. These findings suggest that the patients adopted a cost-minimizing strategy.
Language: en
LA - en SN - 0028-3932 UR - http://dx.doi.org/ ID - ref1 ER -