The Dark Side of Interpersonal Touch: Physical Contact Leads to More Non-compliance With Preventive Measures to COVID-19

Following preventive measures is crucial for slowing the rate of COVID-19 spread. To date, most research has focused on the role of individual differences and personality in compliance with preventive measures to COVID-19. Building on findings that interpersonal touch instills a feeling of security, we propose that interpersonal touching behavior, an underexplored factor tied to social interaction, leads to more breaches of coronavirus restrictions by inducing security feelings. In a lab experiment (Experiment 1) and a field study (Experiment 2), we demonstrated that a female experimenter’s fleeting and comforting pat on the shoulder made people less willing to abide by preventive measures in their self-report and actual behavior. Further, we excluded a potential alternative explanation that touch intervention by the experimenter presents the defiance of COVID-19 rules because the effect cannot be observed when the touch consists of a handshake rather than a comforting pat on the shoulder (Experiment 3). Finally, consistent with our theoretical perspective, the results revealed that sense of security mediated the effect of interpersonal touch on violation of instructions to follow coronavirus precautions. Taken together, interpersonal touch not only enhances trust and security, but also can push people away from health guidelines.

Altered reward network responses to social touch in major depression

Introduction: Affective touch is highly rewarding and an integral part of social relationships. Major depressive disorder (MDD) is characterized by severe impairments in reward processing, but the neural effects of social touch in MDD are still elusive. Objective: We aimed to determine whether the neural processing of social touch is impaired in MDD and to assess the impact of antidepressant therapy. Methods: Before and after antidepressant treatment, 53 MDD patients and 41 healthy controls underwent functional magnetic resonance imaging (fMRI) while receiving social touch. We compared neural responses to social touch in the reward network, behavioral ratings of touch comfort and general aversion to interpersonal touch in MDD patients to controls. Additionally, we examined the effect of treatment response on those measures. Results: Clinical symptoms decreased after treatment and 43.4% of patients were classified as responders. Patients reported higher aversion to social touch and lower comfort ratings during the fMRI paradigm than controls. Patients showed reduced responses to social touch in the nucleus accumbens, caudate nucleus and putamen than controls, both before and after treatment. Non-responders exhibited blunted response in the caudate nucleus and the insula compared to responders, again irrespective of treatment. Conclusions: These findings confirm our hypothesis that interpersonal touch as an indicator of social reward processing is impaired in MDD. Persistent dysfunctional processing of social touch despite clinical improvements may constitute a latent risk factor for social withdrawal and isolation. New treatment approaches are necessary to specifically target social reward processing and disturbed body awareness in MDD.

Social touch deprivation during COVID-19: effects on psychological wellbeing and craving interpersonal touch

Social touch has positive effects on social affiliation and stress alleviation. However, its ubiquitous presence in human life does not allow the study of social touch deprivation ‘in the wild’. Nevertheless, COVID-19-related restrictions such as social distancing allowed the systematic study of the degree to which social distancing affects tactile experiences and mental health. In this study, 1746 participants completed an online survey to examine intimate, friendly and professional touch experiences during COVID-19-related restrictions, their impact on mental health and the extent to which touch deprivation results in craving touch. We found that intimate touch deprivation during COVID-19-related restrictions is associated with higher anxiety and greater loneliness even though this type of touch is still the most experienced during the pandemic. Moreover, intimate touch is reported as the type of touch most craved during this period, thus being more prominent as the days practising social distancing increase. However, our results also show that the degree to which individuals crave touch during this period depends on individual differences in attachment style: the more anxiously attached, the more touch is craved; with the reverse pattern for avoidantly attached. These findings point to the important role of interpersonal and particularly intimate touch in times of distress and uncertainty.

Discriminative and affective touch converge: Somatosensory cortex represents A-beta input in a CT-like manner

Current theory divides the human mechanical sense into discriminative and affective systems. A discriminative system supports tactile exploration and manipulation via fast A-beta signaling, whereas an affective system supports the pleasure of friendly interpersonal touch via slow CT signaling. To probe this system segregation, we recorded the electroencephalogram from participants being stroked and reporting stroke pleasantness. We observed a somatosensory negativity that was maximal for CT optimal as compared with sub-optimal velocities, that predicted subjective pleasantness, and showed only for stroking of hairy skin known to be CT innervated. Importantly, the latency of this negativity preceded C fiber input to the brain by several hundred milliseconds and is best explained by interactions between CT and A-beta processes in the spinal cord. Our data challenge the divide between discriminative and affective touch implying instead that both fast A-beta and slow CT signaling play an important role in tactile pleasure.

Out of touch: Touch deprivation and affective touch perception during the COVID-19 pandemic

Interpersonal touch and affective touch play a crucial role in social interactions and have a positive influence on mental health. The social distancing regulations related to the COVID-19 pandemic have reduced the ability to engage in interpersonal touch. This could cause touch deprivation, and it might alter the way in which affective touch is perceived. To investigate this, we conducted an online survey with 2348 participants, which contained questions regarding the COVID-19 regulations, touch deprivation and the perceived pleasantness of affective and non-affective touch. Results showed that participants reported feelings of touch deprivation. This significantly increased with the duration and severity of the COVID-19 regulations. Participants who experienced more touch deprivation rated videos of affective and non-affective touch as more pleasant. Current results provide insight in the impact of sudden and prolonged COVID-19 regulations and show that increasing the duration and severity of these regulations is associated with a higher desire for touch, which leads to increased perceived pleasantness of touch.

“Permission to Touch”: Nurses’ Perspectives of Interpersonal Contact during Patient Care

The purpose of this study was to describe nurses’ perceptions about the use of interpersonal touch in their clinical practice. A qualitative descriptive approach with content analysis method was used to identify common themes. Registered nurses (N = 22) participated in focus groups and individual interviews. Three themes emerged from the analysis: (a) touch and massage as a resource, (b) individualized boundaries, and (c) professional role conflict. While the approach to touch varied, stories about the positive impacts that touch can have on patient care were consistently evident throughout the data. Implications for practice include incorporating areas from the themes into the development of educational programs focusing on how to integrate touch into practice as a comforting resource, while keeping individual’s preferences in mind.

Affective Interpersonal Touch in Close Relationships: A Cross-Cultural Perspective

Interpersonal touch behavior differs across cultures, yet no study to date has systematically tested for cultural variation in affective touch, nor examined the factors that might account for this variability. Here, over 14,000 individuals from 45 countries were asked whether they embraced, stroked, kissed, or hugged their partner, friends, and youngest child during the week preceding the study. We then examined a range of hypothesized individual-level factors (sex, age, parasitic history, conservatism, religiosity, and preferred interpersonal distance) and cultural-level factors (regional temperature, parasite stress, regional conservatism, collectivism, and religiosity) in predicting these affective-touching behaviors. Our results indicate that affective touch was most prevalent in relationships with partners and children, and its diversity was relatively higher in warmer, less conservative, and religious countries, and among younger, female, and liberal people. This research allows for a broad and integrated view of the bases of cross-cultural variability in affective touch.

Keeping “In Touch”: Demographic Patterns of Interpersonal Touch in Later Life

Touch is an important element of human social interaction linked to various dimensions of well-being, but we know little of how it is distributed among older adults. This study considers whether greeting/affectionate touch is a function of characteristics such as race, gender, and socioeconomic status. Data come from Wave 1 (2005–2006) of the NSHAP study from the United States. Results reveal that women experienced more frequent touch relative to men, net of several features of the interpersonal environment. Mediation analyses revealed that gender differences in associations with touch were partially explained by women’s greater participation in formal and informal social activity. No patterns were detected related to race, education, or wealth. This study situates greeting/affectionate touch as a form of corporeal non-verbal interaction that offers a unique lens into patterns of social connection. We close by considering what this form of interaction means in the wake of the COVID-19 pandemic.

Touch Research–Quo Vadis? A Plea for High-Quality Clinical Trials

Recently, the issue of a lack of interpersonal touch has gained much public interest due to the social distancing ordered by the authorities in the present pandemic situation [...]