Effects of some stimulus probes upon negatively accelerated conditioned suppression responding
نویسندگان
چکیده
منابع مشابه
Familiarity-Based Stimulus Generalization of Conditioned Suppression
We report that stimulus novelty/familiarity is able to modulate stimulus generalization and discuss the theoretical implications of novelty/familiarity coding. Rats in Skinner boxes received clicker → shock pairings before generalization testing to a tone. Before clicker training, different groups of rats received preexposure treatments designed to systematically modulate the clicker and the to...
متن کاملStimulus modality effects on transformations of conditioned enhancement and conditioned suppression in rats.
Unconditioned and conditioned effects of house-light offset and acoustic white noise on barpressing behavior maintained by intermittent food reinforcement were tested in male hooded rats. Presentations of these stimuli prior to their acquiring signal value initially tended to depress and then to enhance barpressing rate, but generally the rate of the on-going barpressing was lower during the li...
متن کاملMorphine-induced suppression of conditioned stimulus intake: effects of stimulus type and insular cortex lesions.
Intake of an unconditionally preferred taste stimulus (e.g., saccharin) is reduced by contingent administration of a drug of abuse (e.g., morphine). We examined the influence of insular cortex (IC) lesions on morphine-induced suppression of an olfactory cue and two taste stimuli with different levels of perceived innate reward value. Two major findings emerged from this study. First, morphine s...
متن کاملStimulus intensity and conditioned suppression magnitude: dependence upon the type of comparison and stage of training.
Three groups of eight rats each were trained in conditioned emotional response (CER) using white noise of 70 dB, 50 dB, or both intensities as conditioned stimuli (CSi) given in unpredictable order. Between-subjects comparisons showed more rapid acquisition to the 70- than to the 50-dB CS. Rats presented with both intensities acquired the CER at a similar rate as those conditioned to the 70 dB ...
متن کاملThe acquisition of conditioned responding.
This report analyzes the acquisition of conditioned responses in rats trained in a magazine approach paradigm. Following the suggestion by Gallistel, Fairhurst, and Balsam (2004), Weibull functions were fitted to the trial-by-trial response rates of individual rats. These showed that the emergence of responding was often delayed, after which the response rate would increase relatively gradually...
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: Psychonomic Science
سال: 1970
ISSN: 0033-3131
DOI: 10.3758/bf03332411