Bridging Ecological Rationality, Embodied Emotion, and Neuroeconomics: Insights From the Somatic Marker Hypothesis

Neural correlates of harm avoidance: a multimodal meta-analysis of brain structural and resting-state functional neuroimaging studies

Harm avoidance (HA) is a Cloninger personality trait that describes behavioural inhibition to avoid aversive stimuli. It serves as a predisposing factor that contributes to the development of mental disorders such as anxiety and major depressive disorder. Neuroimaging research has identified some brain anatomical and functional correlates of HA, but reported findings are inconsistent. We therefore conducted a multimodal meta-analysis of whole-brain structural and resting-state functional neuroimaging studies to identify the most stable neural substrate of HA. Included were a total of 10 structural voxel-based morphometry studies (11 datasets) and 13 functional positron emission tomography or single photon emission computed tomography studies (16 datasets) involving 3053 healthy participants without any psychiatric or neurological disorders evaluated for HA using the Three-Dimensional Personality Questionnaire (TPQ) or the Temperament and Character Inventory (TCI). The meta-analysis revealed brain volumetric correlates of HA in parietal and temporal cortices, and resting-state functional correlates in prefrontal, temporal and parietal gray matter. Volumetric and functional correlates co-occurred in the left superior frontal gyrus and left middle frontal gyrus, and were dissociated in the left rectus gyrus. Our meta-analysis is the first study to give a comprehensive picture of the structural and functional correlates of HA, a contribution that may help bridge the grievous gap between the neurobiology of HA and the pathogenesis, prevention and treatment of HA-related mental disorders.

The process of emotion identification: Considerations for psychiatric disorders

Emotional regulation is important for mental health and behavioral regulation. A relevant precursor to emotional regulation may involve identification of one's emotions. Here, we propose a model of seven components that may provide a foundation for emotion identification. These factors include baseline mood, monitoring, physiological responses, interoception, past personal experiences regarding emotions/metacognition, context, and labeling. We additionally examine how deficits in different components may contribute to the concept of alexithymia, which is defined by difficulty identifying and describing one's own emotions. Ultimately, we explore how the model may support a relationship between specific psychiatric disorders and alexithymia. The proposed model may help explain emotional identification impairment in multiple psychiatric disorders and guide future research and treatment development efforts.

Embodied Irrationality? Knowledge Avoidance, Willful Ignorance, and the Paradox of Autonomy

In the current philosophical and psychological literature, knowledge avoidance and willful ignorance seem to be almost identical conditions involved in irrational patterns of reasoning. In this paper, we will argue that not only these two phenomena should be distinguished, but that they also fall into different parts of the epistemic rationality-irrationality spectrum. We will adopt an epistemological and embodied perspective to propose a definition for both terms. Then, we will maintain that, while willful ignorance is involved in irrational patterns of reasoning and beliefs, knowledge avoidance should be considered epistemically rational under particular circumstances. We will begin our analysis by considering which of the two phenomena is involved in patterns of reasoning that are still amply recognized as irrational—as wishful thinking, self-deception, and akrasia. We will then discuss the impact of epistemic feelings—which are emotional events that depend on epistemic states—on agents' decision-making. Then, we will consider the impact of willful ignorance and knowledge avoidance on agents' autonomy. By considering these issues, we will argue that when agents are aware that they are avoiding certain information (and aware of what kind of feelings acquiring the information would trigger), knowledge avoidance should be considered a rational, autonomy-increasing, hope-depended selection of information.

Infective Messages: Definitions, Processes, and Implications for Trauma, Identities, Internal Conflicts, Psychotherapy, and Research

BACKGROUND

Throughout life, individuals are bombarded by countless emotion-generating messages. Certain of these messages, for example, some insults, admonitions, rejections, challenges, or insightful declarations, can be viewed as "infective." Infective messages shock, puncture, adhere, disturb, and generate discernable host responses that assimilate, accommodate, or repel the intruding messages. Messages originating in one's own mind can stimulate psychological equivalents of autoimmune responses. Sometimes, these messages produce enduring psychological changes. Infective messages may traumatize, organize, or therapize. The aims of this article are to consider how infective messages a) relate to their messengers (vectors), structural characteristics, and recipient (host) factors; b) might contribute to trauma, personal identity formation, psychological conflicts, and emotional self-regulatory and cognitive heuristics; c) might inform the conduct of psychotherapy; and d) suggest future research.

METHODS

Clinical observations were augmented with selective literature reviews. These sources contributed to perspectives regarding how certain messages might become infective; contribute to trauma, complex aspects of identity formation, and inner conflict; and inform the conduct of psychotherapy.

RESULTS

Infective messages are commonly characterized by short, cogent communications emanating from credible sources that fall on vulnerable recipients' receptive, dispositional feeling states. These infective stimuli trigger reactive and defensive emotions and associated behaviors reflecting responses to significant threats or benefits relative to the individual's deepest needs, motivations, and values. Defensive overreactions may occur in response to messages to which individuals have been previously sensitized. Infective message contents appear to assimilate into constantly evolving, dynamic autobiographical brain maps consisting of highly specific neuronal networks that range from the brainstem through limbic structures to multiple cortical areas. Autobiographical maps built from message-injected contents may transform, akin to the incorporation of retroviruses or prions, to encode personal identities as aspects of the self. Contrasting maps may exist semi-independently of one another, continuously evolving, interacting, combining, dividing, conflicting, and contending with one another for attention. Achieving attentional awareness, such maps help structure how individuals conceptualize and communicate about their encoded traumas, diverse identities, and the conflicts among them.

CONCLUSIONS AND IMPLICATIONS

During psychotherapy, aftereffects of traumatizing infective messages might be detoxified by deconstructing, desensitizing, and processing messages' precise words and emotional envelopes in relation to contexts in which they were delivered, and the individual's inner dispositions at moments of impact. Carefully crafted, timely interpretations can be therapeutically infective, generating enduring positive impacts. Future studies using an assortment of approaches can test these perspectives.

Normatively Irrelevant Affective Cues Affect Risk-Taking under Uncertainty: Insights from the Iowa Gambling Task (IGT), Skin Conductance Response, and Heart Rate Variability

Being able to distinguish between safe and risky options is paramount in making functional choices. However, deliberate manipulation of decision-makers emotions can lead to risky behaviors. This study aims at understanding how affective reactions driven by normatively irrelevant affective cues can interfere with risk-taking. Good and Bad decks of the Iowa Gambling Task have been manipulated to make them unpleasant through a negative auditory manipulation. Anticipatory skin conductance response (SCR) and heart rate variability (HRV) have been investigated in line with the somatic marker hypothesis. Results showed fewer selections from Good decks when they were negatively manipulated (i.e., Incongruent condition). No effect of the manipulation was detected when Bad decks were negatively manipulated (i.e., Congruent condition). Higher anticipatory SCR was associated with Bad decks in Congruent condition. Slower heart rate was found before selections from Good decks in Control and Congruent condition and from Bad decks in Incongruent condition. Differences in heart rate between Bad and Good decks were also detected in Congruent condition. Results shed light on how normatively irrelevant affective cues can interfere with risk-taking.