{"title":"Learned helplessness or learned inactivity after inescapable stress? Interpretation depends on coping styles","authors":"D. Zhukov, K. P. Vinogradova","doi":"10.1007/BF02688804","DOIUrl":"https://doi.org/10.1007/BF02688804","url":null,"abstract":"","PeriodicalId":73397,"journal":{"name":"Integrative physiological and behavioral science : the official journal of the Pavlovian Society","volume":"37 1","pages":"35-43"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/BF02688804","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52392576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Stressor controllability and learned helplessness research in the United States: sensitization and fatigue processes.","authors":"Thomas R Minor, Aimee M Hunter","doi":"10.1007/BF02688805","DOIUrl":"10.1007/BF02688805","url":null,"abstract":"<p><p>Recent work in the learned helplessness paradigm suggests that neuronal sensitization and fatigue processes are critical to producing the behavioral impairment that follows prolonged exposure to an unsignaled inescapable stressor such as a series of electric tail shocks. Here we discuss how an interaction between serotonin (5-HT) and corticosterone (CORT) sensitizes GABA neurons early in the pretreatment session with inescapable shock. We propose that this process eventually depletes GABA, thus removing an important form of inhibition on excitatory glutamate transmission in the amygdala, hippocampus, and frontal cortex. When rats are re-exposed to shock during shuttle-escape testing 24 hrs later, the loss of inhibition (as well as other excitatory effects) results in unregulated excitation of glutamate neurons. This state of neuronal over-excitation rapidly compromises metabolic homeostasis. Metabolic fatigue results in compensatory inhibition by the nucleoside adenosine, which regulates neuronal excitation with respect to energy availability. The exceptionally potent form of inhibition associated with adenosine receptor activation yields important neuroprotective benefits under conditions of metabolic failure, but also precludes the processing of information in fatigued neurons. The substrates of adaptive behavior are removed; performance deficits ensue.</p>","PeriodicalId":73397,"journal":{"name":"Integrative physiological and behavioral science : the official journal of the Pavlovian Society","volume":"37 1","pages":"44-58"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52392607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The effects of uncontrollable, unpredictable aversive and appetitive events: similar effects warrant similar, but not identical, explanations?","authors":"R F Soames Job","doi":"10.1007/BF02688806","DOIUrl":"10.1007/BF02688806","url":null,"abstract":"<p><p>Exposure to uncontrollable, unpredictable appetitive events produces a variety of cognitive debilitations and vegetative changes, as does exposure to uncontrollable, unpredictable aversive events. Similarities include impaired escape from aversive events, impaired discrimination, finicky consumption, analgesia, and body weight loss. However, in stark contrast, uncontrollable aversive stress causes reduced motor activity where as similar appetitive treatment does not; aversively induced debilitation is causally related to energy regulation, whereas the appetitively induced effects are not. Parallel mechanisms are suggested to explain these effects in terms of a revised anxiety account of the aversive effects, and a frustration account of the appetitive effects. Finally, factors likely to limit important research to resolve the many remaining issues are identified: negative presentation of animal research, political decision making, and ignorance and fear in committees which review the ethics of research.</p>","PeriodicalId":73397,"journal":{"name":"Integrative physiological and behavioral science : the official journal of the Pavlovian Society","volume":"37 1","pages":"59-81"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52393071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Reliability of the Chronic Mild Stress paradigm: Implications for research and animal welfare","authors":"R. Murison, A. Hansen","doi":"10.1007/BF02688795","DOIUrl":"https://doi.org/10.1007/BF02688795","url":null,"abstract":"","PeriodicalId":73397,"journal":{"name":"Integrative physiological and behavioral science : the official journal of the Pavlovian Society","volume":"36 1","pages":"266-274"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/BF02688795","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52392160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Unique Characteristics of Neonatal Classical Conditioning: The Role of the Amygdala and Locus Coeruleus.","authors":"Regina M Sullivan","doi":"10.1007/BF02688797","DOIUrl":"10.1007/BF02688797","url":null,"abstract":"<p><p>The central nervous system of altricial infants is specialized for optimizing attachments to their caregiver. During the first postnatal days, infant rats show a sensitive period for learning and are particularly susceptible to learning an attraction to their mother's odor. Classical conditioning appears to underlie this learning that is expressed behaviorally as an increased ability to acquire odor preferences and a decreased ability to acquire odor aversions. Specifically, in neonatal rats, pairing an odor with moderately painful shock (0.5mA) or milk produces a subsequent relative preference for that odor. The neural circuitry supporting the increased ability to acquire odor preferences appears to be the heightened functioning of the noradrenergic pontine nucleus locus coeruleus. Indeed, norepinephrine from the locus coeruleus appears to be both necessary and sufficient for learning during the sensitive period. On the other hand, the decreased ability to acquire odor aversions seems to be due to the lack of participation of the amygdala in at least some aversive learning situations. The site of plasticity in the pup's brain appears to be limited to the olfactory bulb. This neonatal sensitive period for learning ends around postnatal day 9-10, at which time pups make the transition from crawling to walking and classical conditioning becomes \"adultlike.\" The neonatal behavioral and neural induced changes are retained into adulthood where it modifies sexual behavior.</p>","PeriodicalId":73397,"journal":{"name":"Integrative physiological and behavioral science : the official journal of the Pavlovian Society","volume":"36 4","pages":"293-307"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1863212/pdf/nihms-21377.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"26702034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The evolutionary significance of habituation and sensitization across phylogeny: A behavioral homeostasis model","authors":"E. Eisenstein, D. Eisenstein, James C. Smith","doi":"10.1007/BF02688794","DOIUrl":"https://doi.org/10.1007/BF02688794","url":null,"abstract":"","PeriodicalId":73397,"journal":{"name":"Integrative physiological and behavioral science : the official journal of the Pavlovian Society","volume":"36 1","pages":"251-265"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/BF02688794","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52392023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ingrid P. Hensley, J. Lawler, G. Zheng, Shenggang Li
{"title":"Effects of a high salt diet on blood pressure responses to acoustic stimuli in borderline hypertensive rats (BHR)","authors":"Ingrid P. Hensley, J. Lawler, G. Zheng, Shenggang Li","doi":"10.1007/BF02688796","DOIUrl":"https://doi.org/10.1007/BF02688796","url":null,"abstract":"","PeriodicalId":73397,"journal":{"name":"Integrative physiological and behavioral science : the official journal of the Pavlovian Society","volume":"36 1","pages":"275-292"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/BF02688796","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52392192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Classical eyeblink conditioning: Clinical models and applications","authors":"J. Steinmetz, J. Tracy, John T. Green","doi":"10.1007/BF02734095","DOIUrl":"https://doi.org/10.1007/BF02734095","url":null,"abstract":"","PeriodicalId":73397,"journal":{"name":"Integrative physiological and behavioral science : the official journal of the Pavlovian Society","volume":"36 1","pages":"220-238"},"PeriodicalIF":0.0,"publicationDate":"2001-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/BF02734095","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"51687427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Associations between financial strain and the diurnal salivary cortisol secretion of long-term unemployed individuals.","authors":"G Grossi, A Perski, U Lundberg, J Soares","doi":"10.1007/BF02734094","DOIUrl":"10.1007/BF02734094","url":null,"abstract":"<p><strong>Objective: </strong>The study investigated the associations between self-rated financial strain and overall diurnal salivary cortisol levels, as well as secretory patterns among long-term unemployed individuals.</p><p><strong>Methods: </strong>Psychosocial and life-style variables were assessed by means of questionnaires among 85 participants (mean age 42+/-9 years; 56% females). Salivary cortisol was sampled on four occasions during a 24-hour period and data was analysed separately for men and women.</p><p><strong>Results: </strong>Among females, high financial strain was related to higher overall cortisol levels, and to elevated levels in the evening. These associations did not reach significance among men. Multivariate analyses showed that evening levels of cortisol were positively associated with financial strain, but largely unrelated to life-style variables and psychological distress.</p><p><strong>Conclusions: </strong>The results suggest that high financial strain influences the diurnal cortisol secretion of unemployed individuals in terms of elevated cortisol levels in the evening. The mediating mechanisms are in need of further investigation.</p>","PeriodicalId":73397,"journal":{"name":"Integrative physiological and behavioral science : the official journal of the Pavlovian Society","volume":"36 3","pages":"205-19"},"PeriodicalIF":0.0,"publicationDate":"2001-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9158382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Differential outcomes training facilitates memory in people with Korsakoff and Prader-Willi syndromes.","authors":"A K Hochhalter, B Joseph","doi":"10.1007/BF02734093","DOIUrl":"10.1007/BF02734093","url":null,"abstract":"<p><p>This article presents evidence that a teaching procedure called differential outcomes training enhances learning and memory. Differential outcomes training reinforces correct responses with outcomes that are unique and specific to the stimuli that are to be remembered. Teaching with this method enhances performance in people with Korsakoff syndrome and people with Prader-Willi syndrome, populations known to have learning and working memory deficits. This initial evidence that persons with learning and memory deficits benefit from differential outcomes training should encourage future work on the development of an intervention using this type of training to aide daily functioning by people with learning and memory impairments.</p>","PeriodicalId":73397,"journal":{"name":"Integrative physiological and behavioral science : the official journal of the Pavlovian Society","volume":"36 1","pages":"196-204"},"PeriodicalIF":0.0,"publicationDate":"2001-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"51687384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}