scholarly journals Intensity of affective experience is modulated by magnitude of intracranial electrical stimulation in human orbitofrontal, cingulate, and insular cortex

2019 ◽  
Author(s):  
Jennifer Yih ◽  
Danielle E. Beam ◽  
Kieran Fox ◽  
Josef Parvizi
Keyword(s):  
Electrical Stimulation ◽  
Electric Current ◽  
Subjective Experience ◽  
Insular Cortex ◽  
Affective States ◽  
Subjective Experiences ◽  
Anterior Portion ◽  
Neurosurgical Patients ◽  
Intracranial Electrodes ◽  
The Relationship

The subjective and behavioral effects of intracranial electrical stimulation (iES) have been studied for decades, but there is a knowledge gap regarding the relationship between the magnitude of electric current and the type, intensity, and valence of evoked subjective experiences. We report on rare iES data from 18 neurosurgical patients with implanted intracranial electrodes in the orbitofrontal cortex (OFC), the insula (INS), and the anterior portion of cingulate cortex (ACC). ACC stimulation elicited somatic and visceral sensations, whereas OFC stimulation predominantly elicited olfactory and gustatory responses, and INS stimulation elicited a mix of effects involving somatic and visceral sensations, olfaction, and gustation. Further, we found striking evidence that the magnitude of electric current delivered intracranially correlated positively with the perceived intensity of subjective experience and the evoked emotional state, a relationship observed across all three regions. Finally, we observed that the majority of reported experiences were negatively-valenced and unpleasant, especially those elicited by ACC stimulation. The present study provides novel case studies from the human brain confirming that these structures contribute causally to the creation of affective states, and demonstrates a direct relationship between the magnitude of electrical stimulation of these structures and the qualia of elicited subjective experience.

scholarly journals THE NEED FOR INFORMATION AND THE ATTITUDE TOWARDS DIGITAL TECHNOLOGIES AS FACTORS OF CRITICAL AND UNCRITICAL DISSEMINATION OF PANDEMIC NEWS

2021 ◽  
pp. 170-195
Author(s):  
Elena I. Rasskazova ◽  
Galina V. Soldatova ◽  
Yulia Y. Neyaskina ◽  
Olga S. Shiriaeva
Keyword(s):  
Subjective Experience ◽  
New Technologies ◽  
Modern Society ◽  
Sociodemographic Factors ◽  
Subjective Experiences ◽  
Individual Level ◽  
Related Information ◽  
Digital World ◽  
The Individual ◽  
The Relationship

Relevance. The modern society creates the image of a successful person as actively interacting with different information flows, including an impressive stream of news content. This paper assumes that there is a personal need for tracking and spreading news that develops in the interaction between person and digital world. The individual level of this need could explain the interaction with information (its critical and uncritical dissemination) and the subjective experience of its redundancy and inaccuracy, including those experiences and actions in a pandemic situation. The aim of the study was to reveal the relationship of the subjective need for news with personal values, beliefs about technologies (“technophilia”) and the dissemination of news about the pandemic. Method. 270 people (aged 18 to 61) filled out The short (Schwartz) Portrait Values Questionnaire (PVQ), Beliefs about New Technologies Questionnaire, Monitoring of Information about Coronavirus Scale as well as items on the subjective need for receiving and disseminating news, readiness for critical and non-critical dissemination of news about pandemics, subjective experiences of redundancy and distrust of pandemic-related information. Results. According to the results, the Need for News Scale allows assessing the subjective importance of receiving news and discussing them with other people and is characterized by sufficient consistency and factor validity. The need for regular news is more pronounced among men, older people, people with higher education, married people, people who have children, while the need to discuss news is not related to sociodemographic factors. For people, who are more prone to technophilia, it is more important to regularly receive and discuss news information with others, which, in turn, mediates the relationship between technophilia and monitoring news about coronavirus. The need for news dissemination mediates the relationship between technophilia and readiness for critical and non-critical dissemination of information about the pandemic.

scholarly journals Changes in subjective experience elicited by direct stimulation of the human orbitofrontal cortex

Neurology ◽  
2018 ◽  
Vol 91 (16) ◽  
pp. e1519-e1527 ◽  
Author(s):  
Kieran C. R. Fox ◽  
Jennifer Yih ◽  
Omri Raccah ◽  
Shrita L. Pendekanti ◽  
Lauren E. Limbach ◽  
...  
Keyword(s):  
Orbitofrontal Cortex ◽  
Subjective Experience ◽  
Focal Epilepsy ◽  
Causal Link ◽  
Direct Stimulation ◽  
Sensory Experiences ◽  
Neurosurgical Patients ◽  
Intracranial Electrodes ◽  
The Brain ◽  
Stimulation Of

ObjectiveWe applied direct cortical stimulation (DCS) to the orbitofrontal cortex (OFC) in neurosurgical patients implanted with intracranial electrodes to probe, with high anatomic precision, the causal link between the OFC and human subjective experience.MethodsWe administered 272 instances of DCS at 172 OFC sites in 22 patients with intractable focal epilepsy (from 2011 to 2017), none of whom had seizures originating from the OFC.ResultsOur observations revealed a rich variety of affective, olfactory, gustatory, and somatosensory changes in the subjective domain. Elicited experiences were largely neutral or negatively valenced (e.g., aversive smells and tastes, sadness, and anger). Evidence was found for preferential left lateralization of negatively valenced experiences and strong right lateralization of neutral effects. Moreover, most of the elicited effects were observed after stimulation of OFC tissue around the transverse orbital sulcus, and none were seen in the most anterior aspects of the OFC.ConclusionsOur study yielded 3 central findings: first, a dissociation between the “silent” anterior and nonsilent middle/posterior OFC where stimulation clearly elicits changes in subjective experience; second, evidence that the OFC might play a causal role in integrating affect and multimodal sensory experiences; and third, clear evidence for left lateralization of negatively valenced effects. Our findings provide important information for clinicians treating OFC injury or planning OFC resection and scientists seeking to understand the brain basis for the integration of sensation, cognition, and affect.

scholarly journals Associations between Digital Health Intervention Engagement and Dietary Intake: A Systematic Review

Nutrients ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 3281
Author(s):  
Tessa Delaney ◽  
Matthew Mclaughlin ◽  
Alix Hall ◽  
Sze Lin Yoong ◽  
Alison Brown ◽  
...  
Keyword(s):  
Dietary Intake ◽  
Subjective Experience ◽  
Digital Health ◽  
Grey Literature ◽  
Health Interventions ◽  
User Engagement ◽  
Narrative Synthesis ◽  
Subjective Experiences ◽  
Early Evidence ◽  
The Relationship

There has been a proliferation of digital health interventions (DHIs) targeting dietary intake. Despite their potential, the effectiveness of DHIs are thought to be dependent, in part, on user engagement. However, the relationship between engagement and the effectiveness of dietary DHIs is not well understood. The aim of this review is to describe the association between DHI engagement and dietary intake. A systematic search of four electronic databases and grey literature for records published before December 2019 was conducted. Studies were eligible if they examined a quantitative association between objective measures of engagement with a DHI (subjective experience or usage) and measures of dietary intake in adults (aged ≥18 years). From 10,653 citations, seven studies were included. Five studies included usage measures of engagement and two examined subjective experiences. Narrative synthesis, using vote counting, found mixed evidence of an association with usage measures (5 of 12 associations indicated a positive relationship, 7 were inconclusive) and no evidence regarding an association with subjective experience (both studies were inconclusive). The findings provide early evidence supporting an association between measures of usage and dietary intake; however, this was inconsistent. Further research examining the association between DHI engagement and dietary intake is warranted.

scholarly journals “I hate this part right here”: Embodied, subjective experiences of listening to aversive music

2021 ◽  
pp. 030573562098859
Author(s):  
Henna-Riikka Peltola ◽  
Jonna Katariin Vuoskoski
Keyword(s):  
Subjective Experience ◽  
Negative Attitude ◽  
Music Listening ◽  
Affective States ◽  
Subjective Experiences ◽  
Musical Identity ◽  
Embodied Experiences ◽  
Moral Attitudes ◽  
Physical Responses ◽  
Music And Emotion

Although the majority of previous research on music-induced responses has focused on pleasurable experiences and preferences, it is undeniable that music is capable of eliciting strong dislike and aversion as well. To date, only limited research has been carried out to understand the subjective experience of listening to aversive music. This qualitative study explored people’s negative experiences associated with music listening, with the aim to understand what kinds of emotions, affective states, and physical responses are associated with listening to aversive music. One hundred and two participants provided free descriptions of (1) musical features of aversive music; (2) subjective physical sensations, thoughts and mental imagery evoked by aversive music; (3) typical contexts where aversive music is heard; and (4) the similarities and/or differences between music-related aversive experiences and experiences of dislike in other contexts. We found that responses to aversive music are characterized by embodied experiences, perceived loss of agency, and violation of musical identity, as well as social or moral attitudes and values. Furthermore, two “experiencer types” were identified: One reflecting a strong negative attitude toward unpleasant music, and the other reflecting a more neutral attitude. Finally, we discuss the theoretical implications of our findings in the broader context of music and emotion research.

scholarly journals Toward a Theory of Emotions in Competitive Sports

2021 ◽  
Vol 12 ◽  
Author(s):  
Darko Jekauc ◽  
Julian Fritsch ◽  
Alexander T. Latinjak
Keyword(s):  
Affect Regulation ◽  
Process Model ◽  
Subjective Experience ◽  
Sport Performance ◽  
Future Research ◽  
Competitive Sports ◽  
Affective States ◽  
Affective Processes ◽  
The Relationship ◽  
Physiological Reactions

In this article, we introduce a theory on the dynamic development of affective processes, affect regulation, and the relationship between emotions and sport performance. The theory focusses on how affective processes emerge and develop during competitive sport involvement. Based on Scherer’s component process model, we postulate six components of emotion that interact with each other in a circular fashion: (I) triggering processes, (II) physiological reactions, (III) action tendencies, (IV) expressive behaviors, (V) subjective experience, and (VI) higher cognitive processes. The theory stresses the dynamics of affective processes and describes the consequences for performance in competitive sports. It assumes that the peculiarities of different sports must be taken into account in order to understand the affective processes, and offers starting points on which strategies can be used to effectively regulate affective states. Consequences for research and practice are derived and discussed. To study the development of affective processes, future research should test the assumptions in ecologically valid contexts, such as real competitions or competition-like situations, using multi-component measures of emotions.

Context-dependent relationship in high-resolution micro-ECoG studies during finger movements

2020 ◽  
Vol 132 (5) ◽  
pp. 1358-1366
Author(s):  
Chao-Hung Kuo ◽  
Timothy M. Blakely ◽  
Jeremiah D. Wander ◽  
Devapratim Sarma ◽  
Jing Wu ◽  
...  
Keyword(s):  
High Resolution ◽  
Sensorimotor Cortex ◽  
Index Finger ◽  
Hand Movement ◽  
Cortical Activation ◽  
Hand Movements ◽  
Finger Movements ◽  
Thumb Movement ◽  
Neurosurgical Patients ◽  
The Relationship

OBJECTIVEThe activation of the sensorimotor cortex as measured by electrocorticographic (ECoG) signals has been correlated with contralateral hand movements in humans, as precisely as the level of individual digits. However, the relationship between individual and multiple synergistic finger movements and the neural signal as detected by ECoG has not been fully explored. The authors used intraoperative high-resolution micro-ECoG (µECoG) on the sensorimotor cortex to link neural signals to finger movements across several context-specific motor tasks.METHODSThree neurosurgical patients with cortical lesions over eloquent regions participated. During awake craniotomy, a sensorimotor cortex area of hand movement was localized by high-frequency responses measured by an 8 × 8 µECoG grid of 3-mm interelectrode spacing. Patients performed a flexion movement of the thumb or index finger, or a pinch movement of both, based on a visual cue. High-gamma (HG; 70–230 Hz) filtered µECoG was used to identify dominant electrodes associated with thumb and index movement. Hand movements were recorded by a dataglove simultaneously with µECoG recording.RESULTSIn all 3 patients, the electrodes controlling thumb and index finger movements were identifiable approximately 3–6-mm apart by the HG-filtered µECoG signal. For HG power of cortical activation measured with µECoG, the thumb and index signals in the pinch movement were similar to those observed during thumb-only and index-only movement, respectively (all p > 0.05). Index finger movements, measured by the dataglove joint angles, were similar in both the index-only and pinch movements (p > 0.05). However, despite similar activation across the conditions, markedly decreased thumb movement was observed in pinch relative to independent thumb-only movement (all p < 0.05).CONCLUSIONSHG-filtered µECoG signals effectively identify dominant regions associated with thumb and index finger movement. For pinch, the µECoG signal comprises a combination of the signals from individual thumb and index movements. However, while the relationship between the index finger joint angle and HG-filtered signal remains consistent between conditions, there is not a fixed relationship for thumb movement. Although the HG-filtered µECoG signal is similar in both thumb-only and pinch conditions, the actual thumb movement is markedly smaller in the pinch condition than in the thumb-only condition. This implies a nonlinear relationship between the cortical signal and the motor output for some, but importantly not all, movement types. This analysis provides insight into the tuning of the motor cortex toward specific types of motor behaviors.

Computer-controlled electrical stimulation for quantitative mapping of human cortical function

2009 ◽  
Vol 110 (6) ◽  
pp. 1300-1303 ◽  
Author(s):  
Mario F. Dulay ◽  
Dona K. Murphey ◽  
Ping Sun ◽  
Yadin B. David ◽  
John H. R. Maunsell ◽  
...  
Keyword(s):  
Electrical Stimulation ◽  
Detection Threshold ◽  
Electrical Current ◽  
Controlled Delivery ◽  
Cortical Mapping ◽  
Cortical Function ◽  
Quantitative Mapping ◽  
Neurosurgical Patients ◽  
Discrete Area ◽  
Computer Controlled

Cortical mapping with electrical stimulation (ES) in neurosurgical patients typically involves the manually controlled delivery of suprathreshold electrical current to a discrete area of the brain. Limited numbers of trials and imprecise current delivery methods increase the variability of the behavioral response and make it difficult to collect quantitative mapping data, which is especially important in research studies of human cortical function. To overcome these limitations, the authors developed a method for computer-controlled delivery of defined electrical current to implanted intracranial electrodes. They demonstrate that stimulation can be time locked to a behavioral task to rapidly and systematically measure the detection threshold for ES in human visual cortex over many trials. Computer-controlled ES is well suited for the systematic and quantitative study of the function of virtually any region of cerebral cortex. It may be especially useful for studying human cortical regions that are not well characterized and for verifying the presence of stimulation-evoked percepts that are difficult to objectively confirm.

The bird dancer and the warrior king: Divergent lived experiences of Tourette syndrome in Bali

2017 ◽  
Vol 54 (4) ◽  
pp. 540-561 ◽  
Author(s):  
Robert Lemelson ◽  
Annie Tucker
Keyword(s):  
Lived Experience ◽  
Tourette Syndrome ◽  
Subjective Experience ◽  
Influential Factors ◽  
Treatment Modalities ◽  
Visual Anthropology ◽  
Subjective Experiences ◽  
Term Outcome ◽  
Long Term Outcome

In the past two decades, ethnographic, epidemiological and interdisciplinary research has robustly established that culture is significant in determining the long-term outcomes of people with neurodevelopmental, neuropsychiatric and mood disorders. Yet these cultural factors are certainly not uniform across discrete individual experiences. Thus, in addition to illustrating meaningful differences for people with neuropsychiatric disorder between different cultures, ethnography should also help detail the variations within a culture. Different subjective experiences or outcomes are not solely due to biographical idiosyncrasies—rather, influential factors arising from the same culture can have different impacts on different people. When taking a holistic and intersectional perspective on lived experience, it is crucial to understand the interaction of these factors for people with neuropsychiatric disorders. This paper teases apart such interactions, utilizing comparative case studies of the disparate subjective experiences and illness trajectories of two Balinese people with Tourette syndrome who exhibit similar symptoms. Based on longitudinal person-centered ethnography integrating clinical, psychological, and visual anthropology, this intersectional approach goes beyond symptom interpretation and treatment modalities to identify gendered embodiment and marital practices as influenced by caste to be significant determinants in subjective experience and long-term outcome.

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