Skin Conductance Response to Emotional Stimuli and Injury Location in Patients with Single Right Hemisphere Damage

2017 ◽  
Vol 41 (S1) ◽  
pp. S166-S166
Author(s):  
S. Álvarez ◽  
G. Lahera
Keyword(s):  
Skin Conductance ◽  
Emotional Processing ◽  
Skin Conductance Response ◽  
Right Hemisphere ◽  
Statistical Significance ◽  
Physiological Responses ◽  
Insular Cortex ◽  
Right Hemisphere Damage ◽  
Biofeedback System ◽  
The Relationship

IntroductionRight hemisphere damage (RHD) has been related to alterations in emotion processing. However, results regarding physiological responses are limited and inconsistent. More research regarding specific brain areas involved in emotional physiological responses is needed.ObjectivesTo examine the skin conductance response (SCR) to emotion eliciting images in patients with single RHD. To explore the relationship between SCR and brain injury location in patients with single RHD.AimsTo examine the relationship between SCR and cortical and subcortical damage in RH regarding emotional processing.MethodForty-one individuals with RHD due to stroke were assessed (mean age 68.5, SD 12.2, 51.1 males). The amplitude of event-related SCR was registered through a biofeedback system while observing 54 photographs from the international affective picture system (IAPS). Emotional images were classified using two different approaches: emotional valence (pleasant, unpleasant, neutral) and social vs. non-social content. Brain damage location, determined through medical records, included cortical (frontal, parietal, temporal and occipital lobes) as well as sub-cortical (caudate nucleus, thalamus, lenticular nucleus, insular cortex, basal ganglia and limbic system) structures.ResultsAmplitude of SCR to emotional images was significantly lower in individuals with occipital cortex injury compared to those with damage in other brain locations (P < 0.05). These results were consistent through all stimuli categories but non-social pictures, which presented the same pattern though, did not reach statistical significance.ConclusionsResults show a relationship between occipital areas in HD and SCR to emotional eliciting stimuli, suggesting occipital right lobe involvement in physiological emotional processing.Disclosure of interestThe authors have not supplied their declaration of competing interest.

scholarly journals Do Emotions Benefit Investment Decisions? Anticipatory Emotion and Investment Decisions in Non-professional Investors

2021 ◽  
Vol 12 ◽  
Author(s):  
Neal S. Hinvest ◽  
Muhamed Alsharman ◽  
Margot Roell ◽  
Richard Fairchild
Keyword(s):  
Decision Making ◽  
Skin Conductance ◽  
Skin Conductance Response ◽  
Investment Decisions ◽  
Big Business ◽  
Financial Decision Making ◽  
Financial Trading ◽  
Financial Decision ◽  
The Relationship ◽  
Trading Behaviour

Increasing financial trading performance is big business. A lingering question within academia and industry concerns whether emotions improve or degrade trading performance. In this study, 30 participants distributed hypothetical wealth between a share (a risk) and the bank (paying a small, sure, gain) within four trading games. Skin Conductance Response was measured while playing the games to measure anticipatory emotion, a covert emotion signal that impacts decision-making. Anticipatory emotion was significantly associated with trading performance but the direction of the correlation was dependent upon the share’s movement. Thus, anticipatory emotion is neither wholly “good” nor “bad” for trading; instead, the relationship is context-dependent. This is one of the first studies exploring the association between anticipatory emotion and trading behaviour using trading games within an experimentally rigorous environment. Our findings elucidate the relationship between anticipatory emotion and financial decision-making and have applications for improving trading performance in novice and expert traders.

The relationship between right hemisphere damage and gesture in spontaneous discourse

Aphasiology ◽  
2007 ◽  
Vol 21 (3-4) ◽  
pp. 299-319 ◽  
Author(s):  
Naomi Cocks ◽  
Kathryn Hird ◽  
Kim Kirsner
Keyword(s):  
Right Hemisphere ◽  
Right Hemisphere Damage ◽  
The Relationship

The relationship between the amplitude and the recovery half-time of the skin conductance response

1978 ◽  
Vol 6 (4) ◽  
pp. 309-311 ◽  
Author(s):  
J. Cort ◽  
J. Hayworth ◽  
B. Little ◽  
T. Lobstein ◽  
E. McBrearty ◽  
...  
Keyword(s):  
Skin Conductance ◽  
Skin Conductance Response ◽  
Half Time ◽  
The Relationship

scholarly journals Modeling Skin Conductance Response Time Series during Consecutive Rapid Decision-Making under Concurrent Temporal Pressure and Information Ambiguity

2021 ◽  
Vol 11 (9) ◽  
pp. 1122
Author(s):  
Takahiro Soshi ◽  
Mitsue Nagamine ◽  
Emiko Fukuda ◽  
Ai Takeuchi
Keyword(s):  
Time Series ◽  
Skin Conductance ◽  
Risk Taking ◽  
State Anxiety ◽  
Skin Conductance Response ◽  
Physiological Responses ◽  
Model Fitting ◽  
Moderate Risk ◽  
Temporal Pressure ◽  
Information Ambiguity

Emergency situations promote risk-taking behaviors associated with anxiety reactivity. A previous study using the Iowa Gambling Task (IGT) has demonstrated that prespecified state anxiety predicts moderate risk-taking (middle-risk/high-return) after salient penalty events under temporal pressure and information ambiguity. Such moderate risk-taking can be used as a behavioral background in the case of fraud damage. We conducted two psychophysiological experiments using the IGT and used a psychophysiological modeling approach to examine how moderate risk-taking under temporal pressure and information ambiguity is associated with automatic physiological responses, such as a skin conductance response (SCR). The first experiment created template SCR functions under concurrent temporal pressure and information ambiguity. The second experiment produced a convolution model using the SCR functions and fitted the model to the SCR time series recorded under temporal pressure and no temporal pressure, respectively. We also collected the participants’ anxiety profiles before the IGT experiment. The first finding indicated that participants with higher state anxiety scores yielded better model fitting (that is, event-related physiological responses) under temporal pressure. The second finding demonstrated that participants with better model fitting made consecutive Deck A selections under temporal pressure more frequently. In summary, a psychophysiological modeling approach is effective for capturing overlapping SCRs and moderate risk-taking under concurrent temporal pressure and information ambiguity is associated with automatic physiological and emotional reactivity.

scholarly journals Intolerance of uncertainty and physiological responses during instructed uncertain threat: a multi-lab investigation

2021 ◽  
Author(s):  
Jayne Morriss ◽  
Daniel E. Bradford ◽  
Nicolò Biagi ◽  
Shannon Wake ◽  
Ema Tanovic ◽  
...  
Keyword(s):  
Skin Conductance ◽  
Skin Conductance Response ◽  
Physiological Responses ◽  
Intolerance Of Uncertainty ◽  
Orbicularis Oculi ◽  
Physiological Measure ◽  
Corrugator Supercilii ◽  
Secondary Analyses ◽  
Threat Of Shock

Individuals with high self-reported Intolerance of uncertainty (IU) tend to interpret uncertainty negatively. Recent research has been inconclusive on evidence of an association between IU and physiological responses during instructed uncertain threat. To address this gap, we conducted secondary analyses of IU and physiology data recorded during instructed uncertain threat tasks from two lab sites (Wisconsin-Madison; n = 128; Yale, n = 103). Higher IU was associated with: (1) greater corrugator supercilii activity to predictable and unpredictable threat of shock, compared to the safety from shock, and (2) poorer discriminatory skin conductance response between the unpredictable threat of shock, relative to the safety from shock. No IU-related effects were observed for the orbicularis oculi. These findings suggest that IU-related biases may be captured differently depending on the physiological measure during instructed uncertain threat. Implications of these findings for neurobiological models of uncertainty and anticipation in anxiety are discussed.

scholarly journals Anatomical predictors of successful prism adaptation in chronic visual neglect

2017 ◽  
Author(s):  
Marine Lunven ◽  
Gilles Rode ◽  
Clémence Bourlon ◽  
Christophe Duret ◽  
Raffaella Migliaccio ◽  
...  
Keyword(s):  
Right Hemisphere ◽  
The Body ◽  
Prism Adaptation ◽  
Visual Neglect ◽  
Non Invasive ◽  
Right Hemisphere Damage ◽  
Probable Role ◽  
Convenient Technique ◽  
The Relationship

AbstractVisual neglect is a frequent and disabling consequence of right hemisphere damage. Previous work demonstrated a probable role of posterior callosal dysfunction in the chronic persistence of neglect signs. Prism adaptation is a non-invasive and convenient technique to rehabilitate chronic visual neglect, but it is not effective in all patients. Here we aimed to assess the hypothesis that prism adaptation improves left neglect by facilitating compensation through the contribution of the left, undamaged hemisphere. We assessed the relationship between prism adaptation effects, cortical thickness and white matter integrity in a group of 14 patients with unilateral right-hemisphere strokes and chronic visual neglect. Results showed that patients who benefitted from prism adaptation had thicker cortex in temporo-parietal, prefrontal and cingulate areas of the left, undamaged hemisphere. Additionally, these patients had a higher fractional anisotropy value in the body and genu of the corpus callosum. Results from normal controls show that these callosal regions connect temporo-parietal, sensorimotor and prefrontal areas. Finally, shorter time intervals from the stroke tended to improve patients’ response to prism adaptation. We concluded that prism adaptation may improve left visual neglect by promoting the contribution of the left hemisphere to neglect compensation. These results support current hypotheses on the role of the healthy hemisphere in the compensation for stroke-induced, chronic neuropsychological deficits, and suggest that prism adaptation can foster this role by exploiting sensorimotor/prefrontal circuits, especially when applied at early stages post-stroke.

Laterality of Damage Influences the Relationship Between Impairment and Arm Use After Stroke

2019 ◽  
Vol 25 (05) ◽  
pp. 470-478 ◽  
Author(s):  
Goldy Yadav ◽  
Kathleen Y. Haaland ◽  
Pratik K. Mutha
Keyword(s):  
Impact Assessment ◽  
Significant Interaction ◽  
Right Hemisphere ◽  
Motor Impairment ◽  
Motor Ability ◽  
Ability Test ◽  
Use Patterns ◽  
Right Hemisphere Damage ◽  
Patient Groups ◽  
The Relationship

AbstractObjectives:To investigate whether the relationship between arm use and motor impairment post-stroke is influenced by the hemisphere of damage.Methods:Right-handed patients with unilateral left hemisphere damage (LHD) or right (RHD) (n=58; 28 LHD, 30 RHD) were recruited for this study. The Arm Motor Ability Test and Functional Impact Assessment were used to derive arm use patterns. The Fugl-Meyer motor assessment scale was used to quantify the level of motor impairment.Results:A significant interaction between patient group and impairment level was observed for contralesional, but not ipsilesional arm use. For lower impairment levels, contralesional (right arm for LHD and left arm for RHD) arm use was greater in LHD than RHD patients. In contrast, for greater levels of impairment, there were no arm use differences between the two patient groups.Conclusions:When motor impairment is significant, it overrides potential effects of stroke laterality on the patterns of arm use. However, a robust influence of hemisphere of damage on the patterns of arm use is evident at lower impairment levels. This may be attributed to previously described arm preference effects. These findings suggest adoption of distinct strategies for rehabilitation following leftversusright hemisphere damage in right-handers, at least when the impairment is moderate to low. (JINS, 2019,25, 470–478)

scholarly journals Embodiment and Performance in the Supernumerary Hand Illusion in Augmented Reality

2021 ◽  
Vol 3 ◽  
Author(s):  
Nina Rosa ◽  
Remco C. Veltkamp ◽  
Wolfgang Hürst ◽  
Anne-Marie Brouwer ◽  
Kaj Gijsbertse ◽  
...  
Keyword(s):  
Augmented Reality ◽  
Task Performance ◽  
Skin Conductance ◽  
Skin Conductance Response ◽  
Personal Space ◽  
Positive Correlations ◽  
And Performance ◽  
The Relationship

In teleoperations, robots are generally used because related tasks are too dangerous, uncomfortable or impossible for humans to perform. When using augmented reality to control robotic limbs in such teleoperations, it is essential to understand how these extra virtual limbs are experienced. In particular, the relationship between the embodiment experience of the user and relevant outcomes such as task performance must be examined. In this article, we study the relationship between experienced embodiment of a supernumerary virtual arm that acts alongside a user’s two real arms, and their task performance in augmented reality. Specifically, we compare how well users can trace a virtual half ring placed just outside of personal space using their virtual arm in a condition where there is expected to be low embodiment (a floating disconnected hand) and a condition where there is expected to be high embodiment (a connected arm and hand). Embodiment is measured quantitatively through skin conductance response and qualitatively through ownership, agency, and self-location questionnaires. Performance is measured in terms of tracing precision. The results show positive correlations between subjective ownership and agency, and agency and performance, but no correlation between subjective or objective ownership and performance. Also, ownership ratings were low overall, while the agency ratings were significantly higher for the disconnected hand condition than the connected arm condition, as was performance. Notably, the presence of the virtual arm evoked incorrect expectations of the movement capabilities of the arm, which may have contributed to an overall preference for the unrealistic disconnected hand over the more realistic connected arm in this particular task. Our results imply that methods to increase performance in various teleoperations can indeed be found in the experience of embodiment: not necessarily directly through ownership, but through ownership mediated by agency.

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