Conditioned stimulus determinants of conditioned response form in Pavlovian fear conditioning.
نویسندگان
چکیده
منابع مشابه
Conditioned stimulus determinants of conditioned response form in Pavlovian fear conditioning.
Four experiments using barpress conditioned suppression in rats found that tone evoked more freezing (immobility) than did light. Still, tone and light appeared to have similar conditioned value as assessed by suppression in Experiments 1, 2, and 3, and by blocking, second-order conditioning, and overconditioning assays in Experiments 1, 2, and 3, respectively. Experiment 4 arranged for tone to...
متن کاملEffects of recent exposure to a conditioned stimulus on extinction of Pavlovian fear conditioning.
In six experiments we studied the effects of a single re-exposure to a conditioned stimulus (CS; "retrieval trial") prior to extinction training (extinction-reconsolidation boundary) on the development of and recovery from fear extinction. A single retrieval trial prior to extinction training significantly augmented the renewal and reinstatement of extinguished responding. Augmentation of recov...
متن کاملInteroceptive fear conditioning and panic disorder: the role of conditioned stimulus-unconditioned stimulus predictability.
Interoceptive fear conditioning is at the core of contemporary behavioral accounts of panic disorder. Yet, to date only one study has attempted to evaluate interoceptive fear conditioning in humans (see Acheson, Forsyth, Prenoveau, & Bouton, 2007). That study used brief (physiologically inert) and longer-duration (panicogenic) inhalations of 20% CO(2)-enriched air as an interoceptive conditione...
متن کاملReinstatement of conditioned responses in human differential fear conditioning.
The present study aimed at investigating reinstatement of conditioned responding in human classical conditioning using a differential fear conditioning paradigm. Reinstatement is defined as the return of extinguished conditioned responses due to the experience of one or more unexpected USs. As expected the reinstatement group showed reinstatement of US-expectancy while a similar return of condi...
متن کاملFear conditioning enhances γ oscillations and their entrainment of neurons representing the conditioned stimulus.
Learning alters the responses of neurons in the neocortex, typically strengthening their encoding of behaviorally relevant stimuli. These enhancements are studied extensively in the auditory cortex by characterizing changes in firing rates and evoked potentials. However, synchronous activity is also important for the processing of stimuli, especially the relationship between gamma oscillations ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Experimental Psychology: Animal Behavior Processes
سال: 1996
ISSN: 1939-2184,0097-7403
DOI: 10.1037/0097-7403.22.1.87