Effects of CS Duration and Instructional Set on Cardiac Anticipatory Responses to Stress in Field Dependent and Independent Subjects

摘要: The study showed that within a modified delayed conditioning paradigm the shape of anticipatory cardiac response to shock can be by changing CS duration. When tone (CS) duration was only 4 sec, there significant HR acceleration. With increasing stepwise, from 12 UCS became biphasic. acceleratory component this bound and time locked, and, on average, reached its peak 5 sec after onset CS. deceleratory directly related length interval between UCS: no deceleration when 4, 5, or 6 sec; most pronounced observed during 10 interval. Instructional sets did not significantly affect activity themselves, but influence responses in interaction with individual difference variable field dependence; found case first trial. Field dependence also meaningful variable, accounted for some differences patterns responding anticipation shock.