1
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Lipp OV, Luck CC, Ney LJ, Craske MG, Waters AM. Signalling unpaired unconditional stimuli during extinction does not impair their effect to reduce renewal of conditional fear. Int J Psychophysiol 2024; 204:112425. [PMID: 39182762 DOI: 10.1016/j.ijpsycho.2024.112425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 08/20/2024] [Accepted: 08/21/2024] [Indexed: 08/27/2024]
Abstract
Presenting unpaired unconditional stimuli (US) during extinction training reduces the renewal of conditional fear due to context change and slows re-acquisition. The present study investigated whether this reduced return of fear is mediated by Pavlovian inhibitory conditioning to the conditional stimulus paired with the US during acquisition (CS+) that is acquired when this stimulus is presented without the US in an excitatory extinction context. Using an ABA renewal paradigm that trained extinction in a context different from acquisition and renewal test, participants either received no USs (Standard), five unsignalled US presentations (Unsignalled) or five presentations of the US preceded by a novel, third CS (Signalled) during extinction training. Extinction was followed by tests for renewal and re-acquisition. Replicating previous results, renewal of electrodermal conditional responses was observed in group Standard, but not in group Unsignalled. Signalling the additional USs, and thus reducing context conditioning and the potential for inhibitory conditioning, did not reduce their effect in that renewal was absent in group Signalled. These results are inconsistent with an inhibitory conditioning account of the effects of unpaired US presentations during extinction. A trial sequence learning account or an arousal account may explain the effects of unpaired presentations of the US during extinction.
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Affiliation(s)
- Ottmar V Lipp
- School of Psychology and Counselling, Queensland University of Technology, Australia; Curtin School of Population Health, Curtin University, Australia.
| | - Camilla C Luck
- Curtin School of Population Health, Curtin University, Australia
| | - Luke J Ney
- School of Psychology and Counselling, Queensland University of Technology, Australia
| | - Michelle G Craske
- Department of Psychology, University of California, Los Angeles, USA
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2
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Bustamante J, Soto M, Miguez G, Quezada-Scholz VE, Angulo R, Laborda MA. Extinction in multiple contexts reduces the return of extinguished responses: A multilevel meta-analysis. Learn Behav 2024; 52:209-223. [PMID: 38010486 DOI: 10.3758/s13420-023-00609-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/20/2023] [Indexed: 11/29/2023]
Abstract
Extinguished responses have been shown to reappear under several circumstances, and this reappearance is considered to model behaviors such as relapse after exposure therapy. Conducting extinction in multiple contexts has been explored as a technique to decrease the recovery of extinguished responses. The present meta-analysis aimed to examine whether extinction in multiple contexts can consistently reduce the recovery of extinguished responses. After searching in several databases, experiments were included in the analysis if they presented extinction in multiple contexts, an experimental design, and an adequate statistical report. Cohen's d was obtained for each critical comparison and weighted to obtain the sample's average weighted effect size. Analyses were then performed using a multilevel meta-analytic approach. Twenty-five studies were included, with a total sample of 37 experiments or critical comparisons. The analyses showed a large effect size for the sample, moderated by the length of conditioned stimulus exposure, type of experimental subject, and type of recovery. The robust effect of extinction in multiple contexts on relapse should encourage clinicians to consider extinction in multiple contexts as a useful technique in therapy and research.
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Affiliation(s)
- Javier Bustamante
- Institute of Social Sciences, Universidad de O'Higgins, Av. Libertador Bernardo O'Higgins 611, Rancagua, Chile
| | - Marcela Soto
- School of Psychology, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Santiago, Chile
| | - Gonzalo Miguez
- Department of Psychology, Universidad de Chile, Av. Ignacio Carrera Pinto 1045, Ñuñoa, 7800284, Santiago, Chile
| | - Vanetza E Quezada-Scholz
- Department of Psychology, Universidad de Chile, Av. Ignacio Carrera Pinto 1045, Ñuñoa, 7800284, Santiago, Chile
| | - Rocío Angulo
- Institute of Social Sciences, Universidad de O'Higgins, Av. Libertador Bernardo O'Higgins 611, Rancagua, Chile
| | - Mario A Laborda
- Department of Psychology, Universidad de Chile, Av. Ignacio Carrera Pinto 1045, Ñuñoa, 7800284, Santiago, Chile.
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3
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Wang Y, Olsson S, Lipp OV, Ney LJ. Renewal in human fear conditioning: A systematic review and meta-analysis. Neurosci Biobehav Rev 2024; 159:105606. [PMID: 38431150 DOI: 10.1016/j.neubiorev.2024.105606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 02/13/2024] [Accepted: 02/25/2024] [Indexed: 03/05/2024]
Abstract
Renewal is a 'return of fear' manipulation in human fear conditioning to investigate learning processes underlying anxiety and trauma. Even though renewal paradigms are widely used, no study has compared the strength of different renewal paradigms. We conduct a systematic review (N = 80) and meta-analysis (N = 23) of human fear conditioning studies assessing renewal. Our analysis shows that the classic ABA design is the most effective paradigm, compared to ABC and ABBA designs. We present evidence that conducting extinction in multiple contexts and increasing the similarity between acquisition and extinction contexts reduce renewal. Furthermore, we show that additional cues can be used as safety and 'protection from extinction' cues. The review shows that alcohol weakens the extinction process and that older adults appear less sensitive to context changes and thus show less renewal. The large variability in approaches to study renewal in humans suggests that standardisation of fear conditioning procedures across laboratories would be of great benefit to the field.
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Affiliation(s)
- Yi Wang
- School of Psychology and Counselling, Queensland University of Technology, Australia.
| | - Sarah Olsson
- School of Psychology and Counselling, Queensland University of Technology, Australia
| | - Ottmar V Lipp
- School of Psychology and Counselling, Queensland University of Technology, Australia
| | - Luke J Ney
- School of Psychology and Counselling, Queensland University of Technology, Australia
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4
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Quintero MJ, Morís J, López FJ. Evaluating the effects of counterconditioning, novelty-facilitated, and standard extinction on the spontaneous recovery of threat expectancy and conditioned stimulus valence. Q J Exp Psychol (Hove) 2024; 77:14-28. [PMID: 36912231 DOI: 10.1177/17470218231165373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
Extinction training has proved effective to diminish the expectancy of the aversive unconditioned stimulus (US). However, the negative valence of the conditioned stimulus (CS) may still stay intact. In fact, several studies have suggested that the CS negative valence may be a factor that promotes the return of fear. Our study focuses on the role of changes in the CS valence as a potential mechanism to reduce the spontaneous recovery of threat expectancies. To do that, we evaluated counterconditioning (CC), a technique aimed to reduce the CS negative valence by paring it with a positive stimulus and compared its efficacy to that of a novelty-facilitated extinction (NFE) and a standard extinction interventions. Using a 2-day protocol, participants first learned the relationship between a figure and an aversive sound, using a differential conditioning paradigm, and were then randomly assigned to one of three different groups. For the CC group, CS+ or cue A was paired with a positive US. The standard extinction group was exposed to cue A alone. For a third NFE group, cue A was followed by a neutral US. Finally, on the second day, spontaneous recovery was tested. Our findings did not provide evidence to suggest that CC could be more effective to prevent or reduce the return of threat expectancies or influence valence ratings when compared with NFE and standard extinction.
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Affiliation(s)
- María J Quintero
- Departamento de Psicología Básica, Facultad de Psicología y Logopedia, Universidad de Málaga, Málaga, Spain
- Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
| | - Joaquín Morís
- Departamento de Psicología Básica, Facultad de Psicología y Logopedia, Universidad de Málaga, Málaga, Spain
- Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
- Departamento de Psicología Evolutiva y de la Educación, Facultad de Psicología, Universidad de Granada, Granada, Spain
| | - Francisco J López
- Departamento de Psicología Básica, Facultad de Psicología y Logopedia, Universidad de Málaga, Málaga, Spain
- Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
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5
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Ney LJ, O'Donohue M, Wang Y, Richardson M, Vasarhelyi A, Lipp OV. The next frontier: Moving human fear conditioning research online. Biol Psychol 2023; 184:108715. [PMID: 37852526 DOI: 10.1016/j.biopsycho.2023.108715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 10/10/2023] [Accepted: 10/12/2023] [Indexed: 10/20/2023]
Abstract
Fear conditioning is a significant area of research that has featured prominently among the topics published in Biological Psychology over the last 50 years. This work has greatly contributed to our understanding of human anxiety and stressor-related disorders. While mainly conducted in the laboratory, recently, there have been initial attempts to conduct fear conditioning experiments online, with around 10 studies published on the subject, primarily in the last two years. These studies have demonstrated the potential of online fear conditioning research, although challenges to ensure that this research meets the same methodological standards as in-person experimentation remain, despite recent progress. We expect that in the coming years new outcome measures will become available online including the measurement of eye-tracking, pupillometry and probe reaction time and that compliance monitoring will be improved. This exciting new approach opens new possibilities for large-scale data collection among hard-to-reach populations and has the potential to transform the future of fear conditioning research.
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Affiliation(s)
- Luke J Ney
- School of Psychology and Counselling, Faculty of Health, Queensland University of Australia, Brisbane, Australia
| | - Matthew O'Donohue
- School of Psychology and Counselling, Faculty of Health, Queensland University of Australia, Brisbane, Australia
| | - Yi Wang
- School of Psychology and Counselling, Faculty of Health, Queensland University of Australia, Brisbane, Australia
| | - Mikaela Richardson
- School of Psychology and Counselling, Faculty of Health, Queensland University of Australia, Brisbane, Australia
| | - Adam Vasarhelyi
- School of Psychology and Counselling, Faculty of Health, Queensland University of Australia, Brisbane, Australia
| | - Ottmar V Lipp
- School of Psychology and Counselling, Faculty of Health, Queensland University of Australia, Brisbane, Australia.
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Ney LJ, FitzSimons-Reilly A, Lipp OV. Reaction time as an outcome measure during online fear conditioning: Effects of number of trials, age, and levels of processing. Behav Res Ther 2023; 169:104406. [PMID: 37738844 DOI: 10.1016/j.brat.2023.104406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 09/04/2023] [Accepted: 09/14/2023] [Indexed: 09/24/2023]
Abstract
Recent studies have shown that fear conditioning experiments can be successfully conducted online. However, there is limited evidence that measures other than subjective ratings of threat expectancy can be collected, which means that online research may not be able to adequately replace laboratory experiments. In the current study, we conducted an online fear conditioning experiment consisting of habituation, acquisition, extinction and 48 h delayed extinction recall using ratings of threat expectancy and conditional stimulus pleasantness, and probe reaction time as outcome measures. The conditional stimuli were categories of words and a levels of processing manipulation explored whether words that were processed at a deeper level during extinction evoked smaller differential threat responses during extinction recall. Although the levels of processing manipulation did not produce a significant outcome, we found that extinction recall was successfully operationalised in our study. Reaction time indicated differential responding during both acquisition and extinction recall, and age of participants was correlated in one of two experiments with differential threat expectancy and reaction time, such that older participants showed better safety learning. The outcomes of this experiment provide multiple novel tools for researchers to explore fear conditioning, especially in an online environment.
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Affiliation(s)
- Luke J Ney
- School of Psychology and Counselling, Queensland University of Technology, Australia.
| | | | - Ottmar V Lipp
- School of Psychology and Counselling, Queensland University of Technology, Australia
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Ney LJ, Nichols DS, Lipp OV. Fear conditioning depends on the nature of the unconditional stimulus and may be related to hair levels of endocannabinoids. Psychophysiology 2023; 60:e14297. [PMID: 36959707 PMCID: PMC10909444 DOI: 10.1111/psyp.14297] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 03/01/2023] [Accepted: 03/08/2023] [Indexed: 03/25/2023]
Abstract
The replicability of fear conditioning research has come under recent scrutiny, with increasing acknowledgment that the use of differing materials and methods may lead to incongruent results. Direct comparisons between the main two unconditional stimuli used in fear conditioning - an electric shock or a loud scream-are scarce, and yet these stimuli are usually used interchangeably. In the present study, we tested whether a scream, a shock, or an unpredictable combination of the two affected fear acquisition, extinction, and return of fear amongst healthy participants (N = 109, 81 female). We also collected hair samples and tested the relationship between fear conditioning and hair endocannabinoid levels. Our findings suggest that, although subjective ratings of pleasantness, arousal, and anxiety were similar regardless of the unconditional stimuli used, skin conductance responses were significantly lower for stimuli paired with the scream compared to a shock alone. Further, reducing the predictability of the unconditional stimulus reduced habituation of skin conductance responses during acquisition and reacquisition, but did not produce stronger conditioning compared to shock alone. Exploratory analyses suggested that hair endocannabinoids were associated with overall physiological arousal during fear conditioning, as well as higher return of fear to the threat cue, but not to the safety cue. These findings have multiple implications for the design and replicability of fear conditioning research and provide the first evidence for an association between hair levels of endocannabinoids and human fear conditioning.
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Affiliation(s)
- Luke J. Ney
- School of Psychology and CounsellingQueensland University of TechnologyBrisbaneQueenslandAustralia
| | - David S. Nichols
- Central Science LaboratoryUniversity of TasmaniaHobartTasmaniaAustralia
| | - Ottmar V. Lipp
- School of Psychology and CounsellingQueensland University of TechnologyBrisbaneQueenslandAustralia
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8
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Waters AM, Ryan KM, Luck CC, Craske MG, Lipp OV. Approximating exposure therapy in the lab: Replacing the CS+ with a similar versus a different stimulus and including additional stimuli resembling the CS+ during extinction. Behav Res Ther 2023; 167:104357. [PMID: 37364363 DOI: 10.1016/j.brat.2023.104357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 05/24/2023] [Accepted: 06/14/2023] [Indexed: 06/28/2023]
Abstract
Recent studies have shown that extinction training including the conditional stimulus (CS+) and stimuli that are similar to the CS + enhances extinction retention and generalisation to novel stimuli. However, in a clinical setting, the CS+ is rarely available for use during exposure therapy. The aim of the present study was to determine if replacing the CS+ with a similar versus different stimulus, and including other similar stimuli during extinction, could reduce fear at test on par with extinction using the original CS+ with and without other similar stimuli. In an experiment conducted in a single session, participants completed a habituation phase followed by an acquisition phase using two dog images presented with (CS+) and without (CS-) an acoustic unconditional stimulus (US). Participants were randomly allocated to four extinction conditions: similar CS + dog with novel dog images (Similar replacement extinction condition); different CS + dog with novel dog images (Different replacement extinction condition); original CS + dog with novel dog images (Multiple extinction control condition); and original CS + without novel dog images (Standard extinction control condition). All participants completed a test phase with the original CSs followed by a generalisation test with another two novel dog images. All groups acquired, and then extinguished differential skin conductance responses (SCRs) with no differences observed between groups. Whereas the Similar replacement extinction group and the Multiple and Standard extinction control groups did not exhibit significant differential SCRs when re-exposed to the original CS + relative to the CS- at test, differential responding to the CSs was significant at test in the Different replacement extinction group. There were no significant differences between groups in SCRs to the two novel dog images during the generalisation phase and in between-phase subjective ratings. Findings suggest that replacement stimuli used during extinction should be as similar as possible to the CS + to reduce physiological arousal to the original CS+.
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Affiliation(s)
| | | | | | - Michelle G Craske
- Department of Psychology & Department of Psychiatry & Biobehavioral Sciences, UCLA, United States
| | - Ottmar V Lipp
- School of Psychology and Counselling, Queensland University of Technology, Australia
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9
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Luck CC, Patterson RR, Lipp OV. The influence of cross unconditional stimulus reinstatement on electrodermal responding and conditional stimulus valence in differential fear conditioning. Psychophysiology 2023:e14278. [PMID: 36929597 DOI: 10.1111/psyp.14278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 10/25/2022] [Accepted: 01/17/2023] [Indexed: 03/17/2023]
Abstract
We examined whether the inhibitory Conditional Stimulus (CS)-no Unconditional Stimulus (US) association formed during extinction can be triggered by a novel US during the reinstatement of conditional electrodermal responding and self-reported CS valence in human differential fear conditioning. Participants were trained with either a shock or an aversive scream US before undergoing extinction. Participants then received either the same (i.e., shock_shock or scream_scream) or a different US during reinstatement (i.e., shock_scream, scream_shock). Differential conditioning across all indices was stronger when a shock US was used during acquisition. After reinstatement, electrodermal responding to both the CS+ and the CS- increased regardless of the type of US used during reinstatement (non-differential reinstatement). Differential CS valence evaluations were larger after reinstatement in the groups that received the same US during acquisition and reinstatement (differential reinstatement), but differential evaluations did not increase in the groups receiving a different US at reinstatement. This dissociation suggests that the reinstatement of negative stimulus valence and the reinstatement of expectancy learning may differ.
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Affiliation(s)
- Camilla C Luck
- School of Population Health, Curtin University, Perth, Western Australia, Australia
| | - Rachel R Patterson
- School of Population Health, Curtin University, Perth, Western Australia, Australia
| | - Ottmar V Lipp
- School of Psychology and Counselling, Queensland University of Technology, Brisbane, Queensland, Australia
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Kindt M, Elsey JWB. A paradigm shift in the treatment of emotional memory disorders: Lessons from basic science. Brain Res Bull 2023; 192:168-174. [PMID: 36442693 DOI: 10.1016/j.brainresbull.2022.11.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 11/10/2022] [Accepted: 11/24/2022] [Indexed: 11/26/2022]
Abstract
Experiments demonstrating post-reactivation amnesia for learned fear in animals have generated a novel and influential hypothesis on the plasticity of memory, usually referred to as memory reconsolidation. The clinical potential of pharmacologically disrupting the process of memory reconsolidation has sparked a wave of interest into whether this phenomenon can also be demonstrated in humans, and ultimately harnessed for therapeutic purposes. In this essay we outline how the work of Karim Nader and colleagues has moved the field forward from a focus on extinction learning to the prospect of disrupting memory reconsolidation. We then review some promising findings on the necessary conditions, as well as potential boundary conditions, of pharmacologically disrupting the process of memory reconsolidation obtained in our laboratory. Even though laboratory experiments in animals and humans suggest that we may be at the brink of a breakthrough in fundamentally changing emotional memories, the necessary and sufficient conditions for targeting and disrupting memory reconsolidation in clinical practice are largely unknown. There is likely no universally effective reactivation procedure for triggering the reconsolidation of clinically significant emotional memories, and the impact of subtle boundary conditions observed in basic experiments compounds this issue. Notwithstanding these challenges, the discovery of changing emotional memory through disrupting the process of memory reconsolidation has unquestionably invigorated the field.
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11
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Using expectation violation models to improve the outcome of psychological treatments. Clin Psychol Rev 2022; 98:102212. [PMID: 36371900 DOI: 10.1016/j.cpr.2022.102212] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 06/14/2022] [Accepted: 10/11/2022] [Indexed: 01/27/2023]
Abstract
Expectations are a central maintaining mechanism in mental disorders and most psychological treatments aim to directly or indirectly modify clinically relevant expectations. Therefore, it is crucial to examine why patients with mental disorders maintain dysfunctional expectations, even in light of disconfirming evidence, and how expectation-violating situations should be created in treatment settings to optimize treatment outcome and reduce the risk of treatment failures. The different psychological subdisciplines offer various approaches for understanding the underlying mechanisms of expectation development, persistence, and change. Here, we convey recommendations on how to improve psychological treatments by considering these different perspectives. Based on our expectation violation model, we argue that the outcome of expectation violation depends on several characteristics: features of the expectation-violating situation; the dynamics between the magnitude of expectation violation and cognitive immunization processes; dealing with uncertainties during and after expectation change; controlled and automatic attention processes; and the costs of expectation changes. Personality factors further add to predict outcomes and may offer a basis for personalized treatment planning. We conclude with a list of recommendations derived from basic psychology that could contribute to improved treatment outcome and to reduced risks of treatment failures.
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12
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Lipp OV, Luck CC, Ney LJ, Waters AM. Intolerance of uncertainty affects electrodermal responses during fear acquisition: Evidence from electrodermal responses to unconditional stimulus omission. Int J Psychophysiol 2022; 180:17-26. [PMID: 35878731 DOI: 10.1016/j.ijpsycho.2022.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 07/06/2022] [Accepted: 07/18/2022] [Indexed: 12/01/2022]
Abstract
Past research has shown that Intolerance of Uncertainty (IU) affects Pavlovian fear conditioning processes. In particular, extinction of learned fear is delayed in those reporting high IU. Reports of differences during acquisition are less consistent with most of the studies reporting no evidence for effects of IU. This may be due to past studies' focus on first interval electrodermal responses or fear potentiated startle, rather than on indices that may better capture uncertainty - like the response to the absence of a probabilistic unconditional stimulus. The current analysis combined data across three experiments that employed a 50 % reinforcement schedule and assessed electrodermal responses and (in two experiments) ratings of conditional stimulus pleasantness. Participants scoring high on IU showed overall larger electrodermal first interval responses during habituation and acquisition but did not differ from those scoring low on IU in differential conditioning (the difference between CS+ and CS-), as indicated by electrodermal first or second interval responses or ratings of CS pleasantness. However, participants high in IU showed larger differential third interval electrodermal responses to the omission of the electro-tactile unconditional stimulus during acquisition. Some evidence for this difference emerged in each experiment, supporting the reliability of the result. The current results suggest that effects of IU emerge in conditions of high uncertainty in Pavlovian fear learning tasks, such as during the omission of probabilistic unconditional stimuli.
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Affiliation(s)
- Ottmar V Lipp
- School of Psychology and Counselling, Queensland University of Technology, Australia.
| | - Camilla C Luck
- School of Population Health, Curtin University, Australia
| | - Luke J Ney
- School of Psychology and Counselling, Queensland University of Technology, Australia
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13
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Ney LJ, O'Donohue MP, Lowe BG, Lipp OV. Angry and fearful compared to happy or neutral faces as conditional stimuli in human fear conditioning: A systematic review and meta-analysis. Neurosci Biobehav Rev 2022; 139:104756. [PMID: 35779627 DOI: 10.1016/j.neubiorev.2022.104756] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 06/03/2022] [Accepted: 06/24/2022] [Indexed: 10/17/2022]
Abstract
Some previous research has shown stronger acquisition and impaired extinction of fear conditioned to angry or fearful compared to happy or neutral face conditional stimuli (CS) - a difference attributed to biological 'preparedness'. A systematic review and meta-analysis of fear conditioning studies comparing face CSs of differing expressions identified thirty studies, eighteen of which were eligible for meta-analysis. Skin conductance responses were larger to angry or fearful faces compared to happy or neutral faces during habituation, acquisition and extinction. Significant differences in differential conditioning between angry, fearful, neutral, and happy face CSs were also found, but differences were more prominent between angry and neutral faces compared to angry/fearful and happy faces. This is likely due to lower arousal elicited by neutral compared to happy faces, which may be more salient as CSs. The findings suggest there are small to moderate differences in differential conditioning when angry or fearful compared to happy or neutral faces are used as CSs. These findings have implications for fear conditioning study design and the preparedness theory.
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Affiliation(s)
- Luke J Ney
- School of Psychology and Counselling, Queensland University of Technology, Australia.
| | - Matthew P O'Donohue
- School of Psychology and Counselling, Queensland University of Technology, Australia
| | - Benjamin G Lowe
- School of Psychology and Counselling, Queensland University of Technology, Australia
| | - Ottmar V Lipp
- School of Psychology and Counselling, Queensland University of Technology, Australia
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14
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Dunsmoor JE, Cisler JM, Fonzo GA, Creech SK, Nemeroff CB. Laboratory models of post-traumatic stress disorder: The elusive bridge to translation. Neuron 2022; 110:1754-1776. [PMID: 35325617 PMCID: PMC9167267 DOI: 10.1016/j.neuron.2022.03.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/18/2022] [Accepted: 02/28/2022] [Indexed: 12/14/2022]
Abstract
Post-traumatic stress disorder (PTSD) is a debilitating mental illness composed of a heterogeneous collection of symptom clusters. The unique nature of PTSD as arising from a precipitating traumatic event helps simplify cross-species translational research modeling the neurobehavioral effects of stress and fear. However, the neurobiological progress on these complex neural circuits informed by animal models has yet to produce novel, evidence-based clinical treatment for PTSD. Here, we provide a comprehensive overview of popular laboratory models of PTSD and provide concrete ideas for improving the validity and clinical translational value of basic research efforts in humans. We detail modifications to simplified animal paradigms to account for myriad cognitive factors affected in PTSD, which may contribute to abnormalities in regulating fear. We further describe new avenues for integrating different areas of psychological research underserved by animal models of PTSD. This includes incorporating emerging trends in the cognitive neuroscience of episodic memory, emotion regulation, social-emotional processes, and PTSD subtyping to provide a more comprehensive recapitulation of the human experience to trauma in laboratory research.
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Affiliation(s)
- Joseph E Dunsmoor
- Department of Psychiatry and Behavioral Sciences, University of Texas at Austin Dell Medical School, Austin, TX, USA; Center for Psychedelic Research and Therapy, University of Texas at Austin Dell Medical School, Austin, TX, USA.
| | - Josh M Cisler
- Department of Psychiatry and Behavioral Sciences, University of Texas at Austin Dell Medical School, Austin, TX, USA; Institute for Early Life Adversity Research, University of Texas at Austin, Austin, TX, USA; Center for Psychedelic Research and Therapy, University of Texas at Austin Dell Medical School, Austin, TX, USA
| | - Gregory A Fonzo
- Department of Psychiatry and Behavioral Sciences, University of Texas at Austin Dell Medical School, Austin, TX, USA; Institute for Early Life Adversity Research, University of Texas at Austin, Austin, TX, USA; Center for Psychedelic Research and Therapy, University of Texas at Austin Dell Medical School, Austin, TX, USA
| | - Suzannah K Creech
- Department of Psychiatry and Behavioral Sciences, University of Texas at Austin Dell Medical School, Austin, TX, USA; Institute for Early Life Adversity Research, University of Texas at Austin, Austin, TX, USA
| | - Charles B Nemeroff
- Department of Psychiatry and Behavioral Sciences, University of Texas at Austin Dell Medical School, Austin, TX, USA; Institute for Early Life Adversity Research, University of Texas at Austin, Austin, TX, USA; Center for Psychedelic Research and Therapy, University of Texas at Austin Dell Medical School, Austin, TX, USA.
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15
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Combining the trauma film and fear conditioning paradigms: A theoretical review and meta-analysis with relevance to PTSD. Behav Res Ther 2022; 152:104081. [DOI: 10.1016/j.brat.2022.104081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 03/09/2022] [Accepted: 03/15/2022] [Indexed: 01/01/2023]
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16
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Measuring Extinction Learning across the Lifespan – Adaptation of an optimized paradigm to closely match exposure treatment procedures. Biol Psychol 2022; 170:108311. [DOI: 10.1016/j.biopsycho.2022.108311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 03/08/2022] [Accepted: 03/08/2022] [Indexed: 11/18/2022]
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Craske M, Treanor M, Zbozinek T, Vervliet B. Optimizing exposure therapy with an inhibitory retrieval approach and the OptEx Nexus. Behav Res Ther 2022; 152:104069. [DOI: 10.1016/j.brat.2022.104069] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 01/12/2022] [Accepted: 02/24/2022] [Indexed: 01/05/2023]
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18
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Cortisol before extinction generalization alters its neural correlates during retrieval. Psychoneuroendocrinology 2022; 136:105607. [PMID: 34864329 DOI: 10.1016/j.psyneuen.2021.105607] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 10/21/2021] [Accepted: 11/22/2021] [Indexed: 11/22/2022]
Abstract
While generalization of fear seems to be naturally acquired as frequently observed in fear-related disorders, extinction learning appears to be stimulus-specific. Thus, treatments aiming to generalize extinction learning comprise the chance to overcome stimulus-specificity and consequently reduce relapse. One suggested candidate is the timing-dependent administration of the stress hormone cortisol. In the present pre-registered, three-day fear conditioning study, we aimed to create a generalized extinction memory trace in 60 healthy men and women using multiple sizes of one conditioned stimulus (CS+G; generalized) during extinction training, whereas the other CS (CS+N; non-generalized) and the CS- were solely presented in their original sizes. Extinction training took place either after pharmacological administration of 20 mg cortisol or placebo. Following successful fear acquisition on day one, generalization effects during extinction training and retrieval were investigated in the comparison of CS+G and CS+N. Insula and dorsal anterior cingulate cortex (dACC) activation for CS+G as compared to CS+N extending to the second half of extinction training indicated prolonged fear processing during extinction training for the CS+G on day two. During retrieval on day three, an activation of the anterior hippocampus occurred for CS+N minus CS+G in the cortisol but not in the placebo group. Additionally, a more posterior hippocampal activation (compared to the other hippocampal activation) was observed for the contrast CS+G minus CS+N. In accordance with our hypotheses, amygdala and dACC responding during reinstatement test was reduced for the CS+G as compared to CS+N. However, cortisol did not modulate amygdala responding, but abolished the CS+G/CS+N differentiation in the dACC relative to placebo. Generalization and cortisol effects were not mirrored in skin conductance responses. In conclusion, extinction generalization processes appear to rely on prolonged fear processing still present in the second half of extinction training that in turn leads to reduced fear-related processing after reinstatement. Cortisol administration prior to extinction training, however, selectively reduced fear-related activation for standard extinction but did not further reduce fear-related activation for extinction generalization.
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19
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Comparing three extinction methods to reduce fear expression and generalization. Behav Brain Res 2021; 420:113714. [PMID: 34906608 DOI: 10.1016/j.bbr.2021.113714] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 12/07/2021] [Accepted: 12/09/2021] [Indexed: 01/19/2023]
Abstract
Fear extinction is easy to achieve but difficult to maintain, as evidenced by the relapse of fear after extinction. Counterconditioning and novelty-facilitated extinction have been shown to interfere with fear expression without erasing it. Because of the similarity between the two extinction paradigms, we extended the standard extinction, which merely omitted the expected threat outcomes after exposure to original threat cues. The modified paradigm provided a stimulus (neutral picture or positive picture) to replace the omitted threat outcomes during extinction. Sixty-four healthy volunteers were randomized into three groups for a three-day procedure: fear acquisition (day 1), fear extinction (day 2), and fear recall and generalization test (day 3). Our results showed the modified extinction paradigm failed to prevent fear expression in spontaneous recovery and reinstatement tests. However, novelty-facilitated extinction showed powerful effects in preventing fear generalization. Besides, there was a negative correlation between spontaneous recovery index and emotion regulation scores. We speculated that emotion and prediction error may be important factors influencing fear extinction and affect fear recall and generalization. Overall, this study suggests that novelty-facilitated extinction had a superior effect in preventing fear generalization, providing new perspectives for enhancing the effect of exposure therapy.
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20
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Sookman D, Phillips KA, Anholt GE, Bhar S, Bream V, Challacombe FL, Coughtrey A, Craske MG, Foa E, Gagné JP, Huppert JD, Jacobi D, Lovell K, McLean CP, Neziroglu F, Pedley R, Perrin S, Pinto A, Pollard CA, Radomsky AS, Riemann BC, Shafran R, Simos G, Söchting I, Summerfeldt LJ, Szymanski J, Treanor M, Van Noppen B, van Oppen P, Whittal M, Williams MT, Williams T, Yadin E, Veale D. Knowledge and competency standards for specialized cognitive behavior therapy for adult obsessive-compulsive disorder. Psychiatry Res 2021; 303:113752. [PMID: 34273818 DOI: 10.1016/j.psychres.2021.113752] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 01/21/2021] [Indexed: 12/19/2022]
Abstract
Obsessive-Compulsive Disorder (OCD) is a leading cause of disability world-wide (World Health Organization, 2008). Treatment of OCD is a specialized field whose aim is recovery from illness for as many patients as possible. The evidence-based psychotherapeutic treatment for OCD is specialized cognitive behavior therapy (CBT, NICE, 2005, Koran and Simpson, 2013). However, these treatments are not accessible to many sufferers around the world. Currently available guidelines for care are deemed to be essential but insufficient because of highly variable clinician knowledge and competencies specific to OCD. The phase two mandate of the 14 nation International OCD Accreditation Task Force (ATF) created by the Canadian Institute for Obsessive Compulsive Disorders is development of knowledge and competency standards for specialized treatments for OCD through the lifespan deemed by experts to be foundational to transformative change in this field. This paper presents knowledge and competency standards for specialized CBT for adult OCD developed to inform, advance, and offer a model for clinical practice and training for OCD. During upcoming ATF phases three and four criteria and processes for training in specialized treatments for OCD through the lifespan for certification (individuals) and accreditation (sites) will be developed based on the ATF standards.
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Affiliation(s)
- Debbie Sookman
- Department of Psychology, McGill University Health Center, 1025 Pine Ave W, Montreal, Quebec, H3A 1A1, Canada; Department of Psychiatry, McGill University, 845 Sherbrooke St W, Montreal, Quebec, H3A 0G4, Canada.
| | - Katharine A Phillips
- Department of Psychiatry, Weill Cornell Medicine, 1300 York Ave, New York, NY 10065, United States.
| | - Gideon E Anholt
- Department of Psychology, Marcus Family Campus, Ben-Gurion University of the Negev, Beer Sheva, P.O.B. 653 Beer-Sheva, 8410501, Israel.
| | - Sunil Bhar
- Department of Psychological Sciences, Faculty of Health, Arts and Design, Swinburne University of Technology, 1 John St, Hawthorn, Victoria, 3122, Australia.
| | - Victoria Bream
- Oxford Health Specialist Psychological Interventions Clinic and Oxford Cognitive Therapy Centre, Warneford Hospital, Oxford, OX3 7JX, United Kingdom.
| | - Fiona L Challacombe
- Institute of Psychiatry, Psychology and Neuroscience, Kings College London, De Crespigny Park, London, SE5 8AF, United Kingdom.
| | - Anna Coughtrey
- Great Ormond Street Hospital for Children, London WC1N 3JH, United Kingdom; UCL Great Ormond Street Institute of Child Health, 30 Guilford St, Holborn, London, WC1N 1EH, United Kingdom.
| | - Michelle G Craske
- Anxiety and Depression Research Center, Depression Grant Challenge, Innovative Treatment Network, Staglin Family Music Center for Behavioral and Brain Health, UCLA Department of Psychology and Department of Psychiatry and Biobehavioral Sciences, Box 951563, 1285 Franz Hall, Los Angeles, CA, United States.
| | - Edna Foa
- Center for the Treatment and Study of Anxiety, University of Pennsylvania Perelman SOM, 3535 Market Street, Philadelphia, PA 19104, United States.
| | - Jean-Philippe Gagné
- Department of Psychology, Concordia University, 7141 Sherbrooke St, West, Montreal, Quebec H4B 1R6, Canada.
| | - Jonathan D Huppert
- Department of Psychology, The Hebrew University of Jerusalem, Mt. Scopus, Jerusalem, 91905, Israel.
| | - David Jacobi
- Rogers Behavioral Health, 34700 Valley Road, Oconomowoc, WI, 53066, United States.
| | - Karina Lovell
- Division of Nursing, Midwifery and Social Work, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oxford Rd, Manchester, M13 9PL, United Kingdom; Manchester Academic Health Science Centre, Greater Manchester Mental Health NHS Foundation Trust, Manchester, M13 9PL, United Kingdom.
| | - Carmen P McLean
- National Center for PTSD, Dissemination and Training Division, VA Palo Alto Healthcare System, 795 Willow Road, Menlo Park, CA, 94025, United States; Department of Psychiatry and Behavioral Sciences, Stanford University, 450 Serra Mall, Stanford, CA, 94305, United States.
| | - Fugen Neziroglu
- Bio-Behavioral Institute, 935 Northern Boulevard, Suite 102, Great Neck, NY, 11021, United States.
| | - Rebecca Pedley
- Division of Nursing, Midwifery and Social Work, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9PL, United Kingdom.
| | - Sean Perrin
- Department of Psychology, Lund University, Box 213, 22100, Lund, Sweden.
| | - Anthony Pinto
- Zucker School of Medicine at Hofstra/Northwell, Zucker Hillside Hospital - Northwell Health, 265-16 74th Avenue, Glen Oaks, NY, 11004, United States.
| | - C Alec Pollard
- Center for OCD and Anxiety-Related Disorders, Saint Louis Behavioral Medicine Institute, 1129 Macklind Ave, St. Louis, MO, 63110, United States; Department of Family and Community Medicine, Saint Louis University School of Medicine, Saint Louis, MO, 63110, United States.
| | - Adam S Radomsky
- Department of Psychology, Concordia University, 7141 Sherbrooke St, West, Montreal, Quebec H4B 1R6, Canada.
| | - Bradley C Riemann
- 34700 Valley Road, Rogers Behavioral Health, Oconomowoc, WI, 53066, United States.
| | - Roz Shafran
- Population, Policy and Practice Research and Teaching Department, UCL Great Ormond Street Hospital Institute of Child Health, Holborn, London, WC1N 1EH, United Kingdom.
| | - Gregoris Simos
- Department of Educational and Social Policy, University of Macedonia, 156 Egnatia Street, 54636 Thessaloniki, Greece.
| | - Ingrid Söchting
- Departments of Psychology, University of British Columbia, 2136 West Mall, Vancouver, British Columbia, V6T 1Z4, Canada.
| | - Laura J Summerfeldt
- Department of Psychology, Trent University, 1600 West Bank Drive, Peterborough, K9L 0G2 Ontario, Canada.
| | - Jeff Szymanski
- International OCD Foundation, 18 Tremont Street, #308, Boston MA, 02108, United States.
| | - Michael Treanor
- Anxiety and Depression Research Center, University of California, Los Angeles, Box 951563, 1285 Franz Hall, Los Angeles, CA, United States.
| | - Barbara Van Noppen
- Clinical Psychiatry and Behavioral Sciences, OCD Southern California, 2514 Jamacha Road Ste, 502-35 El Cajon, CA, 92019, United States; Department of Psychiatry and Behavioral Sciences, Keck School of Medicine, University of Southern California, 2250 Alcazar Street, Suite 2200, Los Angeles, CA, 90033, United States.
| | - Patricia van Oppen
- Department of Psychiatry, Amsterdam UMC, location VUmc, Netherlands; Amsterdam Public Health Research Institute - Mental Health, Netherlands; GGZ inGeest Specialized Mental Health Care, Netherlands.
| | - Maureen Whittal
- Vancouver CBT Centre, 302-1765 W8th Avenue, Vancouver, British Columbia, V6J5C6, Canada; Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada.
| | - Monnica T Williams
- School of Psychology, University of Ottawa, 136 Jean-Jacques Lussier Pvt, Ottawa, K1N 6N5, Ontario, Canada.
| | - Timothy Williams
- Department of Psychology, University of Reading, PO Box 217, Reading, Berkshire, RG6 6AH, United Kingdom.
| | - Elna Yadin
- Department of Psychiatry, University of Pennsylvania, 3535 Market Street, 2nd Floor, Philadelphia, PA 19104, United States.
| | - David Veale
- South London and the Maudsley NHS Foundation Trust & King's College London, Denmark Hill, London, SE5 8 AZ, United Kingdom.
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21
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Lipp OV, Ryan KM, Luck CC, Craske MG, Waters AM. Presentation of unpaired unconditional stimuli during extinction reduces renewal of conditional fear and slows re-acquisition. Psychophysiology 2021; 58:e13899. [PMID: 34231228 DOI: 10.1111/psyp.13899] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 06/20/2021] [Accepted: 06/21/2021] [Indexed: 11/29/2022]
Abstract
Past research has shown that presenting unconditional stimuli (US) during extinction training, either paired with the conditional stimulus (CS) or explicitly unpaired, can reduce spontaneous recovery and slow the re-acquisition of conditional fear. Whether contextual renewal of conditioned fear as indexed by electrodermal responses and self-report measures of anxiety and CS evaluations is also reduced after presentation of paired or unpaired USs during extinction training is currently unclear. Three groups of participants (Paired, Unpaired, Standard Extinction) completed a sequence of habituation, acquisition, extinction, renewal, and re-acquisition phases. During extinction, five CS-US pairings were presented in group Paired, whereas five US were presented alone in group Unpaired. No US were presented during standard extinction. For all groups, extinction was conducted in a context that was different from that of the other phases. Extinction of differential electrodermal responding was evident in groups Unpaired and Standard, but not in group Paired. Contextual renewal and fast re-acquisition, as indexed by differential electrodermal responding, were evident in group Standard, but not in group Unpaired and differential electrodermal responding persisted in group Paired. After extinction, self-reported anxiety was higher in groups Paired and Unpaired, but differential CS evaluations were evident in group Paired only. The current results suggest that presenting additional unpaired USs during extinction training strengthens extinction and protects against the renewal of differential electrodermal responding.
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Affiliation(s)
- Ottmar V Lipp
- Curtin School of Population Health, Curtin University, Perth, WA, Australia.,School of Psychology and Counselling, Queensland University of Technology, Brisbane, QLD, Australia
| | - Katherine M Ryan
- School of Applied Psychology, Griffith University, Brisbane, QLD, Australia
| | - Camilla C Luck
- Curtin School of Population Health, Curtin University, Perth, WA, Australia
| | | | - Allison M Waters
- School of Applied Psychology, Griffith University, Brisbane, QLD, Australia
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22
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Waters AM, Ryan KM, Luck CC, Craske MG, Lipp OV. The effects of presenting additional stimuli resembling the CS+ during extinction on extinction retention and generalisation to novel stimuli. Behav Res Ther 2021; 144:103921. [PMID: 34214823 DOI: 10.1016/j.brat.2021.103921] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 05/27/2021] [Accepted: 06/24/2021] [Indexed: 01/04/2023]
Abstract
Recent studies have shown that extinction training including the conditional stimulus (CS+) and stimuli similar to the CS + enhances extinction retention and generalisation to novel stimuli. The aim of the present study was to confirm that these effects are specific to presenting stimuli similar to the CS+ during extinction and not merely an effect of additional trials or additional stimuli unrelated to the CS+. In an experiment conducted in a single session on the same day, participants (134 adults; 70.7% female; 17-40 years of age, M = 20.04, SD = 4.36) completed a habituation phase followed by an acquisition phase using dog images presented with (CS+) and without (CS-) a dog growl paired with a scream unconditional stimulus (US). Participants were randomly allocated to four extinction conditions: Multiple exemplar extinction comprising the CSs and two novel dog images similar to the CS+; Standard extinction control matched for the number of CS+ and CS- presentations; Extended extinction control matched for the total number extinction trials, and Other stimuli extinction control comprising the CSs and two novel stimuli unrelated to the CS+. All participants completed an extinction test with the original CSs followed by a generalisation test with two novel dog images. Multiple, Standard and Other stimuli extinction groups exhibited larger skin conductance responses (SCRs) during extinction to the CSs compared to the Extended extinction group. SCRs to the additional dog images in the Multiple group were larger than SCRs to the additional CSs in the Extended group and the novel images in the Other stimuli group. There were no group differences in responses to the CSs during extinction test. Unlike the other groups, SCRs to the first presentation of the novel generalisation dogs did not differ from those to the last CS trials in extinction in the Multiple group. However, this group difference did not persist beyond the initial generalisation trial. Finally, the Multiple, Extended, and Other stimuli groups exhibited more negative CS evaluations after extinction, extinction test, and generalisation test than the Standard extinction group. The results suggest that extinction with the original CSs and additional stimuli resembling the CS + elevated physiological responses during extinction and reduced physiological responses to novel stimuli similar to the CSs. Further studies are needed including clinical samples and trial-by-trial evaluations of the stimuli presented.
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Affiliation(s)
| | | | | | - Michelle G Craske
- Department of Psychology, University of California, Los Angeles, USA
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23
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Morriss J, Zuj DV, Mertens G. The role of intolerance of uncertainty in classical threat conditioning: Recent developments and directions for future research. Int J Psychophysiol 2021; 166:116-126. [PMID: 34097936 DOI: 10.1016/j.ijpsycho.2021.05.011] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 05/14/2021] [Accepted: 05/31/2021] [Indexed: 11/25/2022]
Abstract
Intolerance of uncertainty (IU), the tendency to find uncertainty aversive, is an important transdiagnostic dimension in mental health disorders. Over the last decade, there has been a surge of research on the role of IU in classical threat conditioning procedures, which serve as analogues to the development, treatment, and relapse of anxiety, obsessive-compulsive, and trauma- and stressor-related disorders. This review provides an overview of the existing literature on IU in classical threat conditioning procedures. The review integrates findings based on the shared or discrete parameters of uncertainty embedded within classical threat conditioning procedures. Under periods of unexpected uncertainty, where threat and safety contingencies change, high IU, over other self-reported measures of anxiety, is specifically associated with poorer threat extinction learning and retention, as well as overgeneralisation. Under periods of estimation and expected uncertainty, where the parameters of uncertainty are being learned or have been learned, such as threat acquisition training and avoidance learning, the findings are mixed for IU. These findings provide evidence that individual differences in IU play a significant role in maintaining learned fear and anxiety, particularly under volatile environments. Recommendations for future research are outlined, with discussion focusing on how parameters of uncertainty can be better defined to capture how IU is involved in the maintenance of learned fear and anxiety. Such work will be crucial for understanding the role of IU in neurobiological models of uncertainty-based maintenance of fear and anxiety and inform translational work aiming to improve the diagnosis and treatment of relevant psychopathology.
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Affiliation(s)
- Jayne Morriss
- Centre for Integrative Neuroscience and Neurodynamics, School of Psychology and Clinical Language Sciences, University of Reading, Reading, UK
| | - Daniel V Zuj
- Experimental Psychopathology Lab, Department of Psychology, Swansea University, Swansea, UK
| | - Gaëtan Mertens
- Department of Medical and Clinical Psychology, Tilburg University, Tilburg, the Netherlands.
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24
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Optimizing Long-term Outcomes of Exposure for Chronic Primary Pain from the Lens of Learning Theory. THE JOURNAL OF PAIN 2021; 22:1315-1327. [PMID: 34029684 DOI: 10.1016/j.jpain.2021.04.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 04/14/2021] [Accepted: 04/23/2021] [Indexed: 01/04/2023]
Abstract
Exposure in vivo is a theory-driven and widely used treatment to tackle functional disability in people with chronic primary pain. Exposure is quite effective; yet, in line with exposure outcomes for anxiety disorders, a number of patients may not profit from it, or relapse. In this focus article, we critically reflect on the current exposure protocols in chronic primary pain, and provide recommendations on how to optimize them. We propose several adaptations that are expected to strengthen inhibitory learning and/or retrieval of the extinction memory, thus likely decreasing relapse. We summarize the limited, but emerging experimental data in the pain domain, and draw parallels with experimental evidence in the anxiety literature. Our reflections and suggestions pertain to the use of the fear hierarchy, reassurance, positive psychology interventions, exposure with a range of stimuli and within different contexts, and the use of safety behaviors during treatment, as well as associating the fear-inducing stimuli with novel outcomes. In addition, we reflect on the importance of specifically tackling (the return of) pain-related avoidance behavior with techniques such as disentangling fear from avoidance and reinforcing approach behaviors. Finally, we discuss challenges in the clinical application of exposure to improve functioning in chronic primary pain and possible avenues for future research. Perspectives: Inspired by recent advances in learning theory and its applications on the treatment of anxiety disorders, we reflect on the delivery of exposure treatment for chronic primary pain and propose strategies to improve its long-term outcomes.
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25
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Chen W, Li J, Zhang X, Dong Y, Shi P, Luo P, Zheng X. Retrieval-extinction as a reconsolidation-based treatment for emotional disorders:Evidence from an extinction retention test shortly after intervention. Behav Res Ther 2021; 139:103831. [PMID: 33647746 DOI: 10.1016/j.brat.2021.103831] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 11/26/2020] [Accepted: 02/16/2021] [Indexed: 11/18/2022]
Abstract
The retrieval-extinction paradigm, a non-invasive memory intervention that is methodologically similar to exposure therapy, has significant clinical application prospects for targeting memory reconsolidation. However, it is difficult to distinguish whether the effect of preventing the return of fear by retrieval-extinction depends upon the reconsolidation-based mechanism or extinction-based mechanism. This study tested extinction retention shortly after intervention to determine whether retrieval-extinction is a reconsolidation-based approach or extinction-based approach as well as exploring the effect of sleep. In our experiment, the effects on fear conditional memory of standard extinction, retrieval-extinction, and extinction-retrieval were compared using the fear test at 3 h, 12 h without a night's sleep, and 12 h with a night's sleep after the intervention. The results showed that standard extinction and extinction-retrieval procedures reduce fear 3 h after intervention, while retrieval-extinction procedure reduces fear 12 h with a night's sleep after the intervention. The results suggest that standard extinction and extinction-retrieval create an extinction memory trace that competes with original memory trace, only retrieval-extinction update the original memory trace through memory reconsolidation. These findings provide solid evidence for the reconsolidation mechanism of the retrieval-extinction paradigm and highlight the effect of sleep on memory reconsolidation.
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Affiliation(s)
- Wei Chen
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, China; School of Psychology, Center for Studies of Psychological Application, Guangdong Key Laboratory of Mental Health and Cognitive Science, South China Normal University, China
| | - Junjiao Li
- College of Teacher Education, Guangdong University of Education, Guangzhou, China
| | - Xiaoxia Zhang
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, China; School of Psychology, Center for Studies of Psychological Application, Guangdong Key Laboratory of Mental Health and Cognitive Science, South China Normal University, China
| | - Yuanyuan Dong
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, China; School of Psychology, Center for Studies of Psychological Application, Guangdong Key Laboratory of Mental Health and Cognitive Science, South China Normal University, China
| | - Pei Shi
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, China; School of Psychology, Center for Studies of Psychological Application, Guangdong Key Laboratory of Mental Health and Cognitive Science, South China Normal University, China
| | - Pinchao Luo
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, China; School of Psychology, Center for Studies of Psychological Application, Guangdong Key Laboratory of Mental Health and Cognitive Science, South China Normal University, China
| | - Xifu Zheng
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, China; School of Psychology, Center for Studies of Psychological Application, Guangdong Key Laboratory of Mental Health and Cognitive Science, South China Normal University, China.
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26
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Ryan KM, Neumann DL, Waters AM. Does the assessment of different combinations of within-phase subjective measures influence electrodermal responding and between-phase subjective ratings during fear conditioning and extinction experiments? Biol Psychol 2021; 162:108085. [PMID: 33775735 DOI: 10.1016/j.biopsycho.2021.108085] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 03/21/2021] [Accepted: 03/22/2021] [Indexed: 01/23/2023]
Abstract
The type and number of dependent measures assessed have varied between fear conditioning and extinction experiments and it remains unclear whether methodological differences influence results. Measuring skin conductance responses (SCRs) and between-phase subjective ratings between four conditions; Con condition had no within-phase ratings; US Exp condition included within-phase US expectancy ratings only; CS Eval condition included within-phase CS evaluations only and All Meas condition included both. All Meas condition exhibited larger SCRs compared to other conditions during acquisition, extinction, and return of differential responding at test. Differential SCRs did not extinguish in CS Eval and Con conditions, and CS Eval condition exhibited smaller CS- SCRs than other conditions throughout phases. US Exp condition revealed differential conditioning, successful extinction, and no return of differential SCRs. Between-phase ratings were not affected by within-phase ratings. Researchers should consider assessing different combinations of within-phase subjective ratings depending on the aims of their research.
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Affiliation(s)
| | - David L Neumann
- School of Applied Psychology, Griffith University, Australia
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27
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Körfer K, Schemer L, Kube T, Glombiewski JA. An Experimental Analogue Study on the "Dose-Response Relationship" of Different Therapeutic Instructions for Pain Exposures: The More, The Better? J Pain Res 2020; 13:3181-3193. [PMID: 33293855 PMCID: PMC7719044 DOI: 10.2147/jpr.s265709] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 08/20/2020] [Indexed: 01/05/2023] Open
Abstract
Objective Novel suggestions derived from the inhibitory learning model on how to optimize exposure therapy have been debated with enthusiasm in the last few years, particularly with respect to the focus on expectancy violations. However, little is known about how this new approach directly compares to the traditional habituation rationale of exposure therapy. In the present study, we examined these two competing therapeutic instructions among healthy female participants in an experimental heat pain paradigm. Design and Methods Participants (N= 116) received a therapeutic instruction derived from either a habituation-based approach or the inhibitory learning model (expectation violation). Participants were repeatedly exposed to painful thermal stimulations until a predefined exposure goal was reached. Results The expectation violation instruction led to faster goal attainment and higher response rates than the habituation instruction. Both instructions led to increased pain tolerance in the short and long term (one-week follow-up). Conclusion Our results suggest that exposure treatments using an expectation violation instruction are especially time-effective. Although the findings from this analogue design cannot be directly generalized to populations with clinically relevant levels of chronic pain, they do point to some important theoretical and clinical implications for the treatment of pain.
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Affiliation(s)
- Karoline Körfer
- Department of Clinical Psychology and Psychotherapy, Philipps-University Marburg, Marburg, Germany
| | - Lea Schemer
- Department of Clinical Psychology and Psychotherapy, University of Koblenz - Landau, Landau, Germany
| | - Tobias Kube
- Department of Clinical Psychology and Psychotherapy, University of Koblenz - Landau, Landau, Germany
| | - Julia A Glombiewski
- Department of Clinical Psychology and Psychotherapy, University of Koblenz - Landau, Landau, Germany
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28
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Memories of 100 years of human fear conditioning research and expectations for its future. Behav Res Ther 2020; 135:103732. [DOI: 10.1016/j.brat.2020.103732] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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