Neurosciences : Publications since January 2023

%% LaBar, Kevin S.   
@article{fds375524,
   Author = {Neacsiu, AD and Beynel, L and Gerlus, N and LaBar, KS and Bukhari-Parlakturk, N and Rosenthal, MZ},
   Title = {An experimental examination of neurostimulation and
             cognitive restructuring as potential components for
             Misophonia interventions.},
   Journal = {J Affect Disord},
   Volume = {350},
   Pages = {274-285},
   Year = {2024},
   Month = {April},
   url = {http://dx.doi.org/10.1016/j.jad.2024.01.120},
   Abstract = {Misophonia is a disorder of decreased tolerance to certain
             aversive, repetitive common sounds, or to stimuli associated
             with these sounds. Two matched groups of adults (29
             participants with misophonia and 30 clinical controls with
             high emotion dysregulation) received inhibitory
             neurostimulation (1 Hz) over a personalized medial
             prefrontal cortex (mPFC) target functionally connected to
             the left insula; excitatory neurostimulation (10 Hz) over a
             personalized dorsolateral PFC (dlPFC) target; and sham
             stimulation over either target. Stimulations were applied
             while participants were either listening or cognitively
             downregulating emotions associated with personalized
             aversive, misophonic, or neutral sounds. Subjective units of
             distress (SUDS) and psychophysiological measurements (e.g.,
             skin conductance response [SCR] and level [SCL]) were
             collected. Compared to controls, participants with
             misophonia reported higher distress (∆SUDS = 1.91-1.93,
             ps < 0.001) when listening to and when downregulating
             misophonic distress. Both types of neurostimulation reduced
             distress significantly more than sham, with excitatory rTMS
             providing the most benefit (Cohen's dSUDS = 0.53;
             dSCL = 0.14). Excitatory rTMS also enhanced the regulation
             of emotions associated with misophonic sounds in both groups
             when measured by SUDS (dcontrol = 1.28;
             dMisophonia = 0.94), and in the misophonia group alone
             when measured with SCL (d = 0.20). Both types of
             neurostimulation were well tolerated. Engaging in cognitive
             restructuring enhanced with high-frequency neurostimulation
             led to the lowest misophonic distress, highlighting the best
             path forward for misophonia interventions.},
   Doi = {10.1016/j.jad.2024.01.120},
   Key = {fds375524}
}

@article{fds374231,
   Author = {Reeck, C and LaBar, KS},
   Title = {Retrieval-induced forgetting of emotional
             memories.},
   Journal = {Cognition & emotion},
   Volume = {38},
   Number = {1},
   Pages = {131-147},
   Year = {2024},
   Month = {February},
   url = {http://dx.doi.org/10.1080/02699931.2023.2279156},
   Abstract = {Long-term memory manages its contents to facilitate adaptive
             behaviour, amplifying representations of information
             relevant to current goals and expediting forgetting of
             information that competes with relevant memory traces. Both
             mnemonic selection and inhibition maintain congruence
             between the contents of long-term memory and an organism's
             priorities. However, the capacity of these processes to
             modulate affective mnemonic representations remains
             ambiguous. Three empirical experiments investigated the
             consequences of mnemonic selection and inhibition on
             affectively charged and neutral mnemonic representations
             using an adapted retrieval practice paradigm. Participants
             encoded neutral cue words and affectively negative or
             neutral associates and then selectively retrieved a subset
             of these associates multiple times. The consequences of
             selection and inhibitory processes engaged during selective
             retrieval were evaluated on a final memory test in which
             recall for all studied associates was probed. Analyses of
             memory recall indicated that both affectively neutral and
             negative mnemonic representations experienced similar levels
             of enhancement and impairment following selective retrieval,
             demonstrating the susceptibility of affectively salient
             memories to these mnemonic processes. These findings
             indicate that although affective memories may be more
             strongly encoded in memory, they remain amenable to
             inhibition and flexibly adaptable to the evolving needs of
             the organism.},
   Doi = {10.1080/02699931.2023.2279156},
   Key = {fds374231}
}

@article{fds367262,
   Author = {Faul, L and LaBar, KS},
   Title = {Mood-congruent memory revisited.},
   Journal = {Psychological review},
   Volume = {130},
   Number = {6},
   Pages = {1421-1456},
   Year = {2023},
   Month = {November},
   url = {http://dx.doi.org/10.1037/rev0000394},
   Abstract = {Affective experiences are commonly represented by either
             transient emotional reactions to discrete events or longer
             term, sustained mood states that are characterized by a more
             diffuse and global nature. While both have considerable
             influence in shaping memory, their interaction can produce
             mood-congruent memory (MCM), a psychological phenomenon
             where emotional memory is biased toward content affectively
             congruent with a past or current mood. The study of MCM has
             direct implications for understanding how memory biases form
             in daily life, as well as debilitating negative memory
             schemas that contribute to mood disorders such as
             depression. To elucidate the factors that influence the
             presence and strength of MCM, here we systematically review
             the literature for studies that assessed MCM by inducing
             mood in healthy participants. We observe that MCM is often
             reported as enhanced accuracy for previously encoded
             mood-congruent content or preferential recall for
             mood-congruent autobiographical events, but may also
             manifest as false memory for mood-congruent lures. We
             discuss the relevant conditions that shape these effects, as
             well as instances of mood-incongruent recall that facilitate
             mood repair. Further, we provide guiding methodological and
             theoretical considerations, emphasizing the limited
             neuroimaging research in this area and the need for a
             renewed focus on memory consolidation. Accordingly, we
             propose a theoretical framework for studying the neural
             basis of MCM based on the neurobiological underpinnings of
             mood and emotion. In doing so, we review evidence for
             associative network models of spreading activation, while
             also considering alternative models informed by the
             cognitive neuroscience literature of emotional memory bias.
             (PsycInfo Database Record (c) 2024 APA, all rights
             reserved).},
   Doi = {10.1037/rev0000394},
   Key = {fds367262}
}

@article{fds367771,
   Author = {Faul, L and Baumann, MG and LaBar, KS},
   Title = {The representation of emotional experience from imagined
             scenarios.},
   Journal = {Emotion (Washington, D.C.)},
   Volume = {23},
   Number = {6},
   Pages = {1670-1686},
   Year = {2023},
   Month = {September},
   url = {http://dx.doi.org/10.1037/emo0001192},
   Abstract = {One of the key unresolved issues in affective science is
             understanding how the subjective experience of emotion is
             structured. Semantic space theory has shed new light on this
             debate by applying computational methods to high-dimensional
             data sets containing self-report ratings of emotional
             responses to visual and auditory stimuli. We extend this
             approach here to the emotional experience induced by
             imagined scenarios. Participants chose at least one emotion
             category label among 34 options or provided ratings on 14
             affective dimensions while imagining two-sentence
             hypothetical scenarios. A total of 883 scenarios were rated
             by at least 11 different raters on categorical or
             dimensional qualities, with a total of 796 participants
             contributing to the final normed stimulus set. Principal
             component analysis reduced the categorical data to 24
             distinct varieties of reported experience, while cluster
             visualization indicated a blended, rather than discrete,
             distribution of the corresponding emotion space. Canonical
             correlation analysis between the categorical and dimensional
             data further indicated that category endorsement accounted
             for more variance in dimensional ratings than vice versa,
             with 10 canonical variates unifying change in category
             loadings with affective dimensions such as valence, arousal,
             safety, and commitment. These findings indicate that
             self-reported emotional responses to imaginative experiences
             exhibit a clustered structure, although clusters are
             separated by fuzzy boundaries, and variable dimensional
             properties associate with smooth gradients of change in
             categorical judgments. The resultant structure supports the
             tenets of semantic space theory and demonstrates some
             consistency with prior work using different emotional
             stimuli. (PsycInfo Database Record (c) 2023 APA, all rights
             reserved).},
   Doi = {10.1037/emo0001192},
   Key = {fds367771}
}

@article{fds370956,
   Author = {Faul, L and Rothrock, JM and LaBar, KS},
   Title = {Self-Relevance Moderates the Relationship between Depressive
             Symptoms and Corrugator Activity during the Imagination of
             Personal Episodic Events.},
   Journal = {Brain sciences},
   Volume = {13},
   Number = {6},
   Pages = {843},
   Publisher = {MDPI AG},
   Year = {2023},
   Month = {May},
   url = {http://dx.doi.org/10.3390/brainsci13060843},
   Abstract = {Accumulating evidence suggests depression is associated with
             blunted reactivity to positive and negative stimuli, known
             as emotion context insensitivity (ECI). However, ECI is not
             consistently observed in the literature, suggesting
             moderators that influence its presence. We propose
             self-relevance as one such moderator, with ECI most apparent
             when self-relevance is low. We examined this proposal by
             measuring self-report and facial electromyography (EMG) from
             the corrugator muscle while participants (n = 81) imagined
             hypothetical scenarios with varying self-relevance and
             recalled autobiographical memories. Increased depressive
             symptoms on the Center for Epidemiologic Studies Depression
             Scale were associated with less differentiated arousal and
             self-relevance ratings between happy, neutral, and sad
             scenarios. EMG analyses further revealed that individuals
             with high depressive symptoms exhibited blunted corrugator
             reactivity (reduced differentiation) for sad, neutral, and
             happy scenarios with low self-relevance, while corrugator
             reactivity remained sensitive to valence for highly
             self-relevant scenarios. By comparison, in individuals with
             low depressive symptoms, corrugator activity differentiated
             valence regardless of stimulus self-relevance. Supporting a
             role for self-relevance in shaping ECI, we observed no
             depression-related differences in emotional reactivity when
             participants recalled highly self-relevant happy or sad
             autobiographical memories. Our findings suggest ECI is
             primarily associated with blunted reactivity towards
             material deemed low in self-relevance.},
   Doi = {10.3390/brainsci13060843},
   Key = {fds370956}
}

@article{fds371648,
   Author = {LaBar, KS},
   Title = {Neuroimaging of Fear Extinction.},
   Journal = {Current topics in behavioral neurosciences},
   Volume = {64},
   Pages = {79-101},
   Year = {2023},
   Month = {January},
   url = {http://dx.doi.org/10.1007/7854_2023_429},
   Abstract = {Extinguishing fear and defensive responses to environmental
             threats when they are no longer warranted is a critical
             learning ability that can promote healthy self-regulation
             and, ultimately, reduce susceptibility to or maintenance of
             affective-, trauma-, stressor-,and anxiety-related
             disorders. Neuroimaging tools provide an important means to
             uncover the neural mechanisms of effective extinction
             learning that, in turn, can abate the return of fear. Here I
             review the promises and pitfalls of functional neuroimaging
             as a method to investigate fear extinction circuitry in the
             healthy human brain. I discuss the extent to which
             neuroimaging has validated the core circuits implicated in
             rodent models and has expanded the scope of the brain
             regions implicated in extinction processes. Finally, I
             present new advances made possible by multivariate data
             analysis tools that yield more refined insights into the
             brain-behavior relationships involved.},
   Doi = {10.1007/7854_2023_429},
   Key = {fds371648}
}

@article{fds373632,
   Author = {Faul, L and Baumann, MG and LaBar, KS},
   Title = {The Representation of Emotional Experience from Imagined
             Scenarios},
   Journal = {AFFECTIVE SCIENCE},
   Volume = {4},
   Number = {1},
   Year = {2023},
   Key = {fds373632}
}