scholarly journals Familiarity and Audience Effects on Giving: A Functional Magnetic Resonance Imaging Study

2020 ◽  
Vol 32 (8) ◽  
pp. 1577-1589
Author(s):  
Suzanne van de Groep ◽  
Kiki Zanolie ◽  
Eveline A. Crone

Giving is often characterized by the conflicting decision to give up something of value to benefit others. Recent evidence indicated that giving is highly context-dependent. To unravel the neural correlates of social context, in this study, young adults ( n = 32) performed a novel giving fMRI paradigm, in which they divided coins between self and known (friends) or unknown (unfamiliar) others. A second manipulation included presence of others; giving decisions were made with an audience or anonymously. Results showed that participants gave more coins to a friend than to an unfamiliar other and generally gave more in the presence of an audience. On a neural level, medial prefrontal cortex and the right insula were most active for relatively generous decisions. These findings possibly reflect that aversion of norm deviation or fairness concerns drive differences in the frequency of giving. Next, activation in separate subregions of the TPJ-IPL (i.e., a region that comprises the TPJ and inferior parietal lobule) was found for target and audience contexts. Overall, our findings suggest that donation size and social contextual information are processed in separable brain regions and that TPJ-IPL plays an important role in balancing self- and other-oriented motives related to the social context.

2019 ◽  
Author(s):  
Hua Xie ◽  
Amber Howell ◽  
Meredith Schreier ◽  
Kristen E. Sheau ◽  
Mai K. Manchanda ◽  
...  

AbstractHumans have an extraordinary ability to interact and cooperate with others, which plays a pivotal role in societies at large. Despite its potential social and evolutionary significance, research on finding the neural correlates of collaboration has been limited partly due to restrictions on simultaneous neuroimaging of more than one participant (a.k.a. hyperscanning). A series of works now exists that used dyadic fMRI hyperscanning to examine the interaction between two participants. However, to our knowledge, no study to date has aimed at revealing the neural correlates of social interactions using a 3-person (or triadic) fMRI hyperscanning paradigm. Here, for the first time, we simultaneously measured the blood-oxygenation-level-dependent (BOLD) signal of triads (m=12 triads; n=36 participants), while they engaged in a joint drawing task based on the social game of Pictionary®. General linear model (GLM) analysis revealed increased activation in the brain regions previously linked with the theory of mind (ToM) during the collaborative phase compared to the independent phase of the task. Furthermore, using intersubject brain synchronization (IBS) analysis, we revealed increased synchrony of the right temporo-parietal junction (R TPJ) during the collaborative phase. The increased synchrony in the R TPJ was observed to be positively associated with the overall team performance on the task. In sum, our novel paradigm revealed a vital role of the R TPJ among other ToM regions during a triadic collaborative drawing task.


2020 ◽  
Vol 117 (37) ◽  
pp. 23066-23072 ◽  
Author(s):  
Hua Xie ◽  
Iliana I. Karipidis ◽  
Amber Howell ◽  
Meredith Schreier ◽  
Kristen E. Sheau ◽  
...  

Humans have an extraordinary ability to interact and cooperate with others. Despite the social and evolutionary significance of collaboration, research on finding its neural correlates has been limited partly due to restrictions on the simultaneous neuroimaging of more than one participant (also known as hyperscanning). Several studies have used dyadic fMRI hyperscanning to examine the interaction between two participants. However, to our knowledge, no study to date has aimed at revealing the neural correlates of social interactions using a three-person (or triadic) fMRI hyperscanning paradigm. Here, we simultaneously measured the blood-oxygenation level-dependent signal from 12 triads (n = 36 participants), while they engaged in a collaborative drawing task based on the social game of Pictionary. General linear model analysis revealed increased activation in the brain regions previously linked with the theory of mind during the collaborative phase compared to the independent phase of the task. Furthermore, using intersubject correlation analysis, we revealed increased synchronization of the right temporo‐parietal junction (R TPJ) during the collaborative phase. The increased synchrony in the R TPJ was observed to be positively associated with the overall team performance on the task. In sum, our paradigm revealed a vital role of the R TPJ among other theory-of-mind regions during a triadic collaborative drawing task.


2020 ◽  
Vol 15 (4) ◽  
pp. 423-436
Author(s):  
Élodie Cauvet ◽  
Annelies van’t Westeinde ◽  
Roberto Toro ◽  
Ralf Kuja-Halkola ◽  
Janina Neufeld ◽  
...  

Abstract A female advantage in social cognition (SoC) might contribute to women’s underrepresentation in autism spectrum disorder (ASD). The latter could be underpinned by sex differences in social brain structure. This study investigated the relationship between structural social brain networks and SoC in females and males in relation to ASD and autistic traits in twins. We used a co-twin design in 77 twin pairs (39 female) aged 12.5 to 31.0 years. Twin pairs were discordant or concordant for ASD or autistic traits, discordant or concordant for other neurodevelopmental disorders or concordant for neurotypical development. They underwent structural magnetic resonance imaging and were assessed for SoC using the naturalistic Movie for the Assessment of Social Cognition. Autistic traits predicted reduced SoC capacities predominantly in male twins, despite a comparable extent of autistic traits in each sex, although the association between SoC and autistic traits did not differ significantly between the sexes. Consistently, within-pair associations between SoC and social brain structure revealed that lower SoC ability was associated with increased cortical thickness of several brain regions, particularly in males. Our findings confirm the notion that sex differences in SoC in association with ASD are underpinned by sex differences in brain structure.


2013 ◽  
Vol 6 ◽  
pp. 117-132 ◽  
Author(s):  
Stanley B. Klein

In this paper I argue that radiological attempts to elucidate the properties of self -- an endeavor currently popular in the social neurosciences -- are fraught with conceptual difficulties. I first discuss several philosophical criteria that increase the chances we are posing the “right” questions to nature. I then discuss whether these criteria are met when empirical efforts are directed at one of the central constructs in the social sciences – the human self. In particular, I consider whether recent attempts to map the neural correlates of self and its assumed properties using brain scanning technology satisfy the conceptual conditions minimally required to ask well-formed, theoretically satisfying questions of nature. I conclude that much theoretical work remains to be done.


2021 ◽  
pp. 122-126
Author(s):  
Naoyuki Osaka

As an investigator of how culture interacts with neuroaesthetics in Japanese art, the author’s goal in the article under discussion is to explore the neural mechanisms involved in the social, affective, and cognitive processes of sadness induced by the Noh mask. Why do seemingly negative emotions, such as sadness, play a critical role in aesthetic experiences in the Noh theater? What brain activity is involved in feeling delicate sadness? Sadness induced by faces involves cortical interactions among various brain areas such as the amygdala, striatum, fusiform face area, and insula. The expectation for reward, hidden in the appreciation of the sad mask, might be a social reward. If so, it may be that appreciating sadness masks engages a common system that drives the expectation of negative rewards. The author ran a functional magnetic resonance imaging study in which participants’ brains were scanned while watching sad Noh masks. Results confirmed predictions, revealing activation of the right amygdala while viewing sad masks.


2021 ◽  
Vol 19 ◽  
Author(s):  
Andy Wai Kan Yeung

: Food craving is a health issue for a considerable proportion of the general population. Medications have been introduced to alleviate the craving or reduce the appetite via a neuropharmacological approach. However, the underlying cerebral processing of the medications was largely unknown. This study aimed to meta-analyze existing neuroimaging findings. We searched PubMed, Web of Science, and Scopus to identify relevant publications. Original studies that reported brain imaging findings using functional magnetic resonance imaging (fMRI) were initially included. The reported coordinates of brain activation available from the studies were extracted and meta-analyzed with the activation likelihood estimation (ALE) approach via the software GingerALE. The overall analysis pooling data from 24 studies showed that the right claustrum and insula were the targeted sites of altered cerebral processing of food cues by the medications. Subgroup analysis pooling data from 11 studies showed that these sites had reduced activity level under medications compared to placebo. The location of this significant cluster partially overlapped with that attributable to affective value processing of food cue in a prior meta-analysis. No brain regions were found to have increased activity level by medications. These neural correlates may help explain the physiological effect of food consumption by anti-appetite and anti-obesity medications.


2017 ◽  
Vol 12 (1) ◽  
pp. 57 ◽  
Author(s):  
Sarah Herbert ◽  
Margaret Forster ◽  
Timothy McCreanor ◽  
Christine Stephens

<p class="Abstract">To broaden public health approaches to alcohol use, this study provides an initial exploration of the social context of alcohol use among Māori in Aotearoa/New Zealand, from the perspectives of older Māori. Utilising a Māori-centred research approach, face-to-face interviews were conducted with 13 older Māori people to explore their personal experiences of alcohol use across their lifetime. Thematic analysis was used to identify common themes that contextualised stories of alcohol use within a Māori cultural framework. Four themes were identified: alcohol use within (1) a sporting culture, (2) a working culture, (3) the context of family, and (4) Māori culture. These themes highlight the influence of social factors such as the desire to socialise and seek companionship; the physical location of alcohol use; the importance of social networks, particularly <em>whānau</em> (family); and the role of cultural identity among Māori. In regard to cultural identity, the role of the <em>marae</em> (traditional meeting place/s of Māori), <em>tikanga</em> (the right way of doing things), and the relationship of <em>kaumātua</em> (respected elder) status to personal and whānau alcohol use are highlighted as important focuses for further research among Māori in Aotearoa/New Zealand.</p>


2013 ◽  
Vol 25 (6) ◽  
pp. 887-902 ◽  
Author(s):  
Pauline L. Baniqued ◽  
Kathy A. Low ◽  
Monica Fabiani ◽  
Gabriele Gratton

Coordination between networks of brain regions is important for optimal cognitive performance, especially in attention demanding tasks. With the event-related optical signal (a measure of changes in optical scattering because of neuronal activity) we can characterize rapidly evolving network processes by examining the millisecond-scale temporal correlation of activity in distinct regions during the preparatory period of a response mode switching task. Participants received a precue indicating whether to respond vocally or manually. They then saw or heard the letter “L” or “R,” indicating a “left” or “right” response to be implemented with the appropriate response modality. We employed lagged cross-correlations to characterize the dynamic connectivity of preparatory processes. Our results confirmed coupling of frontal and parietal cortices and the trial-dependent relationship of the right frontal cortex with response preparation areas. The frontal-to-modality-specific cortex cross-correlations revealed a pattern in which first irrelevant regions were deactivated, and then relevant regions were activated. These results provide a window into the subsecond scale network interactions that flexibly tune to task demands.


2021 ◽  
Vol 15 ◽  
Author(s):  
Chao Yu ◽  
Chu-Qi Li ◽  
Qian-Min Ge ◽  
Hui-Ye Shu ◽  
Xu-Lin Liao ◽  
...  

Background: Neovascular glaucoma (NVG) is a serious eye disease that causes irreversible damage to the eye. It can significantly increase intraocular pressure and cause severe pain, as well as abnormal activity in the cortical and pre-cortical visual systems. However, there are few studies in this area. This trial assessed the altered regional brain activity in patients with NVG using the percentage of fluctuation amplitude (PerAF) method.Methods: Resting-state functional MRI (rs-fMRI) scans were conducted in 18 individuals with NVG and 18 healthy controls (HCs), matched for education level, gender, and age. The PerAF method was applied to assess brain activity. Mean PerAF values of brain regions in NVG and HCs were compared using receiver operating characteristic (ROC) curves.Results: Lower PerAF values were found in the NVG group than in controls in the right anterior cingulate and paracingulate gyri (ACG.R), right superior occipital gyrus (SOG.R) and left superior frontal gyrus (orbital part) (ORBsup.L) (p &lt; 0.001). In contrast, PerAF value was higher in NVG patients than in controls in the left inferior temporal gyrus (ITG.L) (p &lt; 0.001). The hospital anxiety and depression scale (HADS) and visual analog score (VAS) were significantly and positively correlated with PerAF in ITG.L (r = 0.9331, p &lt; 0.0001; and r = 0.7816, p = 0.0001, respectively).Conclusion: Abnormal activity in the patient’s brain regions further confirms that the NVG affects the entire brain, not just the visual pathways and posterior retinal mechanisms (including the hypothalamic lateral geniculate nucleus and the primary visual cortex). This strengthens our understanding of the NVG and provides potential diagnostic and therapeutic support for patients who are difficult to diagnose and treat early.


2018 ◽  
Vol 48 (4) ◽  
pp. 625-644 ◽  
Author(s):  
Martin Bouchard ◽  
Krysta L. Dawson ◽  
Morena Anamali

The study examines the social context of a cannabis offer, an outcome rarely examined in research on substance use. Drawing from a survey conducted among 15-year-old students in a mid-sized Canadian city, we examine (a) the differences between three types of users (immediate, late, and nonusers) and (b) the factors associated with accepting a cannabis offer more quickly. The findings show that 40% of the sample received an offer, that 25% of those who accept an offer do so on the first occasion, and that among the others, it takes up to seven offers before accepting. The social context of the offer distinguishes between the types of users, and offers are accepted more quickly when adolescents are first offered by a close social contact, and when the offer occurs in familiar settings. The study also identifies a type of nonuser, those who are exposed to drugs but decide not to participate.


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