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Fulltext How high-intensity sensory consumption fills up resource scarcity: The boundary condition of self-acceptance

Peng L, Peng Y, Luo H, Deng Y

PLoS One, 2023;18(5):e0285853.
PMID: 37235592 DOI: 10.1371/journal.pone.0285853

OBJECTIVE: Everyone in life will experience resource scarcity, which causes self-discrepancy. It is widely known that individuals participate in reactive consumption to solve the problems of self-discrepancy and resources scarcity. This kind of consumption may be symbolically related to the essence of the resource scarcity or may occur in an unrelated domain. This study proposes a theory for "filling up" one's resource scarcity through high-intensity sensory consumption (HISC).
METHODS: We used different methods, including one-way analysis of variance (ANOVA), linear regression, mediating effect, and moderating effect, to test the four hypotheses. Four experiments in the study were conducted from May 2022 and August 2022 and involved undergraduates from a university and volunteers recruited online. All participants are adults and verbally agree to participate voluntarily. Study 1a (N = 96 (male 47, female 49), participants from a business school in China) measured resource scarcity in the laboratory experiments and verified the effect of resource scarcity on consumer HISC preference by using linear regression (H1). Study 1b (N = 191 (male 98, female 93), students and teachers from a university in China) measured resource scarcity in the laboratory experiments and manipulated positively and negatively valenced experiences. Using the PROCESS SPSS Mode l, we verified that negatively valenced stimuli also lead to higher levels of arousal, which in turn restores the self-discrepancy caused by resource scarcity (H2). Study 2 (an online experiment, N = 182 (male 91, female 91), participants from China) manipulated the resource scarcity in a color sensory stimulant context, replicating the preliminary effect and examined the mediating effect of the self-worth by using the PROCESS SPSS Mode 4 (H3). Study 3 (an online experiment, N = 251 (male 125, female 126), participants from China) manipulated resource scarcity and self-acceptance in the tactile sensory experience, and tested the moderating effect of self-acceptance by using the PROCESS SPSS Mode 8 (H4).
RESULTS: Four studies suggest that not only do individuals facing resources scarcity prefer HISC but also that this consumption is mediated and moderated by self-worth and self-acceptance, respectively. This preference for HISC is negated when individuals have high self-acceptance traits. The findings are tested in the auditory domain (as evidenced by a propensity for louder volume), the visual domain (as evidenced by a propensity for more intense colors), and the tactile domain (as evidenced by a propensity for more intense need for touch). The findings also demonstrate that individual preferences for HISC is shown to operate regardless of the valence (positive valence vs. negative valence) of the sensory consumption.
CONCLUSIONS: Across four experiments, we find that individuals who are subjected to resource scarcity show a preference for high-intensity sensory consumption in the auditory, visual, and tactile domains. We also find that both negatively and positively valenced sensory stimuli have the same impact on resource-scarce individuals' preference for HISC. Furthermore, we demonstrate that the sense of self-worth significantly mediates the effect of resource scarcity on HISC. Finally, we reveal that self-acceptance moderates the effect of resource scarcity on HISC preference.

Matched MeSH terms: Touch Perception*
Fulltext Tactile perception of pleasantness in relation to perceived softness

Pasqualotto A, Ng M, Tan ZY, Kitada R

Sci Rep, 2020 07 07;10(1):11189.
PMID: 32636415 DOI: 10.1038/s41598-020-68034-x

The sense of touch allows us to infer objects' physical properties, while the same input also produces affective sensations. These affective sensations are important for interpersonal relationships and personal well-being, which raises the possibility that tactile preferences are adapted to the characteristics of the skin. Previous studies examined how physical properties such as surface roughness and temperature influence affective sensations; however, little is known about the effect of compliance (physical correlate of softness) on pleasantness. Thus, we investigated the psychophysical link between softness and pleasantness. Pieces of human skin-like rubber with different compliances were pressed against participants' fingers. Two groups of participants numerically estimated the perceived magnitude of either pleasantness or softness. The perceived magnitude of pleasantness and softness both increased monotonically as a function of increasing object compliance, levelling off at around the end of the stimulus range. However, inter-subject variability was greater for pleasantness than for perceived softness, whereas the slope of the linear function fit to the magnitude estimates was steeper for softness than for pleasantness. These results indicate that object compliance is a critical physical determinant for pleasantness, whereas the effect of compliance on pleasantness was more variable among individuals than the effect on softness was.

Matched MeSH terms: Touch Perception*
Fulltext Effects of touch-screen technology usage on the hand skills dataset

Aman NA, Chien CW, Judd J, Daud AZC

Data Brief, 2020 Dec;33:106358.
PMID: 33083507 DOI: 10.1016/j.dib.2020.106358

This data article describes the hand skills of pre-school children between five and six years old from five schools under the Ministry of Education Malaysia. These data may be used in a journal article later to show the effects of touch-screen technology usage on hand skills of pre-school children. Demographic characteristics, hand skills ability and frequency of touch-screen technology usage data that was collected from August to September 2019. These data may be used in a future systematic review, meta-analysis and meta-regression analysis to conclude the effects of touch-screen technology usage on children's hand skills. Parents, teachers and health practitioners may refer to these data to note the effects of touch-screen technology usage on hand skills of pre-school children.

Matched MeSH terms: Touch Perception
Multisensory distortions of the hand have differential effects on tactile perception

Treshi-marie Perera A, Newport R, McKenzie KJ

Exp Brain Res, 2015 Nov;233(11):3153-61.
PMID: 26195170 DOI: 10.1007/s00221-015-4384-8

Research has suggested that altering the perceived shape and size of the body image significantly affects perception of somatic events. The current study investigated how multisensory illusions applied to the body altered tactile perception using the somatic signal detection task. Thirty-one healthy volunteers were asked to report the presence or absence of near-threshold tactile stimuli delivered to the index finger under three multisensory illusion conditions: stretched finger, shrunken finger and detached finger, as well as a veridical baseline condition. Both stretching and shrinking the stimulated finger enhanced correct touch detections; however, the mechanisms underlying this increase were found to be different. In contrast, the detached appearance reduced false touch reports-possibly due to reduced tactile noise, as a result of attention being directed to the tip of the finger only. These findings suggest that distorted representations of the body could have different modulatory effects on attention to touch and provide a link between perceived body representation and somatosensory decision-making.

Matched MeSH terms: Touch Perception/physiology*
Fulltext Rubber hands in space: the role of distance and relative position in the rubber hand illusion

Kalckert A, Perera AT, Ganesan Y, Tan E

Exp Brain Res, 2019 Jul;237(7):1821-1832.
PMID: 31079236 DOI: 10.1007/s00221-019-05539-6

The rubber hand illusion (RHI) is a perceptual phenomenon in which participants experience ownership over a fake model hand through synchronous visuotactile stimulation. Several studies have shown that the illusion occurs only when both hands are in close proximity to each other. In the present study, we systematically examined the role of relative position (lateral, distal) and distance (13-75 cm) of the model hand (with respect to participants' real hand) on illusion experience across both lateral and distal positions. Furthermore, we also compared different facets of the subjective illusion experience; the experience of the model hand being part of one's body (i.e., ownership) and the perceptual fusion of vision and touch (i.e., referral of touch). In two experiments we observed indications for a stronger illusion experiences in distal compared to lateral positions of identical distances, indicating that the illusory effects may vary as a function of the relative position of the hand. Our results also showed that manipulations of distance differently modulated both facets of the illusion. While ownership was restricted to near distances, referral of touch sensations remained stable at farther distances. These results are interpreted in relation to variations in sensory weighting across different planes.

Matched MeSH terms: Touch Perception/physiology*
Illusions With Hands, but Not With Balloons - Comparing Ownership and Referral of Touch for a Corporal and Noncorporal Object After Visuotactile Stimulation

Kalckert A, Bico I, Fong JX

Perception, 2019 May;48(5):447-455.
PMID: 30939992 DOI: 10.1177/0301006619839286

The rubber hand illusion is a perceptual illusion of perceiving an object like a model hand as part of the own body. The question whether the illusion can be induced with noncorporal objects that do not look like a human body part is not perfectly resolved yet. In this study, we directly assessed the subjective experience of two different components within the illusion (i.e., ownership and referral of touch) when a model hand and a balloon are stimulated. We observed significantly stronger illusion ratings for the hand as compared with the balloon, and only the hand ratings showed a clear affirmation of the illusion. We further conclude that (a) a significant difference between synchronous and asynchronous conditions may not be sufficient to argue for the successful induction of the illusion and (b) the subcomponents show a different pattern in the different conditions, which may lead to alternative interpretations. These observations call for a more fine-grained interpretation of questionnaire data in rubber hand illusion studies.

Matched MeSH terms: Touch Perception/physiology*
Fulltext Differential coding of perception in the world's languages

Majid A, Roberts SG, Cilissen L, Emmorey K, Nicodemus B, O'Grady L, et al.

Proc Natl Acad Sci U S A, 2018 Nov 06;115(45):11369-11376.
PMID: 30397135 DOI: 10.1073/pnas.1720419115

Is there a universal hierarchy of the senses, such that some senses (e.g., vision) are more accessible to consciousness and linguistic description than others (e.g., smell)? The long-standing presumption in Western thought has been that vision and audition are more objective than the other senses, serving as the basis of knowledge and understanding, whereas touch, taste, and smell are crude and of little value. This predicts that humans ought to be better at communicating about sight and hearing than the other senses, and decades of work based on English and related languages certainly suggests this is true. However, how well does this reflect the diversity of languages and communities worldwide? To test whether there is a universal hierarchy of the senses, stimuli from the five basic senses were used to elicit descriptions in 20 diverse languages, including 3 unrelated sign languages. We found that languages differ fundamentally in which sensory domains they linguistically code systematically, and how they do so. The tendency for better coding in some domains can be explained in part by cultural preoccupations. Although languages seem free to elaborate specific sensory domains, some general tendencies emerge: for example, with some exceptions, smell is poorly coded. The surprise is that, despite the gradual phylogenetic accumulation of the senses, and the imbalances in the neural tissue dedicated to them, no single hierarchy of the senses imposes itself upon language.

Matched MeSH terms: Touch Perception/physiology*
Real-time and visual sensing devices based on pH-control assembled lanthanide-barium nano-cluster

Liu M, Li H, Bai L, Zheng K, Zhao Z, Chen Z, et al.

J Hazard Mater, 2021 07 05;413:125291.
PMID: 33588337 DOI: 10.1016/j.jhazmat.2021.125291

Real-time and visual monitoring of pollutants in the air is of great importance since they are usually cannot be seen, smelled, or touched. Lanthanide nano-cluster is a kind of luminescent sensor for various species. However, controlling synthesis of lanthanide nano-cluster remains experimentally challenging. In this work, four series of lanthanide-barium (Ln-Ba) nano-clusters of Dy2Ba (1), Tb2Ba2 (2), Ln4Ba3 (Ln = Tb, 3a; Eu, 3b), Tb4Ba4 (4) were assembled through precisely controlling the pH of the reactant solutions. The work features the first example that the number of cluster's nuclei changes regularly with the pH. Moreover, investigation reveals that nano-cluster 3a is a highly selective and sensitive sensor towards acetylacetone (acac) and aniline. Interestingly, easy-to-use sensing devices of test paper, agarose gel, and five kinds of film on CaCO3, polyfoam, coin, mask, and wall that based on 3a were fabricated by facile methods. The seven sensing devices showed remarkable ability to sense aniline and acac vapors with visibility to the naked eyes. This is the first work on multiple real-time and visual sensing devices based on the lanthanide nano-cluster.

Matched MeSH terms: Touch Perception
Fulltext The prevalence of hand arm vibration syndrome among automobile assembly workers

Shamsul Bahri Mohd Tamrin, Nor MaizuraYusoff, Anita Abd Rahman, Dayana Hazwani, M.S.N., Mansour A. Balkhyour

Malaysian Journal of Public Health Medicine, 2016;16(20):128-136.
MyJurnal

The objectives of this study are to determine the prevalence of hand-arm vibration (HAVS) among the automobile
assembly workers and the associated risks. A cross sectional study was conducted to determine the prevalence of
HAVS and also ascertain the association between HAVS and reduction in VPT among workers using vibration hand held
tool in automobile industry. Aim of this study was to determine the prevalence Hand Arm Vibration Syndrome
(HAVS) among vibrating hand held tool exposed workers. A cross sectional study design using structured
questionnaire and invasive measurement of vibrotactile perception threshold (VPT) at the fingertips was conducted
in one of the automobile company in Klang Valley. All the respondents were hand arm vibration exposed workers. A
total 109 assembly line workers with at least one year job tenure participated in this study. The finding revealed
that 27.5% of workers reported HAVS through questionnaire. This study consisted of 109 respondents. All of them
were male. The mean age was 32.9 years. The mean daily vibration exposure for 8-hours was 1.41m/s2. There was
11% of the tools measured were above the Action Level recommended by European Union Directive 2002. The overall
prevalence of HAVS based on reported symptom through questionnaire was 27.5%. None of the respondent reported
any whiteness at their fingers due to exposure to vibration. However, 36.7% of the respondent reported tingling
sensation and 57.8 % reported the feeling of numbness in their hands. Only 10.1% claim that the pain was
persistence. Since this study was done among exposed workers without control group, the thresholds were measured
by comparing the observed VPT with the VPT of healthy population provided by ISO 13091-2. The result showed that
98.2% of the respondent in this study having positive threshold which indicate the percentage of respondent that
having deterioration in finger tactile perception. The positive threshold from comparison above showed that the
respondent of this study was affected with the vibration exposure. The value proven that the exposure has caused
the deterioration of tactile sensitivity in 98.2% of respondent in this study which showed by having positive threshold
compared to healthy population. The result also showed that there was a significant correlation between daily
vibration exposure A (8) and VPT at both frequency tested which was 31.5Hz (r = 0.417, p = 0.002) and 125Hz (r =
0.480, p = 0.001). Even though the mean daily vibration exposure for 8-hours was low and below the recommended
level, the workers still exposed to the effect of hand arm vibration.

Matched MeSH terms: Touch Perception
Multisensory stimulation modulates perceptual and post perceptual face representations: Evidence from event-related potentials

Estudillo AJ, Kaufmann JM, Bindemann M, Schweinberger SR

Eur J Neurosci, 2018 09;48(5):2259-2271.
PMID: 30107052 DOI: 10.1111/ejn.14112

Seeing a face being touched in spatial and temporal synchrony with the own face produces a bias in self-recognition, whereby the other face becomes more likely to be perceived as the self. The present study employed event-related potentials to explore whether this enfacement effect reflects initial face encoding, enhanced distinctiveness of the enfaced face, modified self-identity representations, or even later processing stages that are associated with the emotional processing of faces. Participants were stroked in synchrony or asynchrony with an unfamiliar face they observed on a monitor in front of them, in a situation approximating a mirror image. Subsequently, event-related potentials were recorded during the presentation of (a) a previously synchronously stimulated face, (b) an asynchronously stimulated face, (c) observers' own face, (d) filler faces, and (e) a to-be-detected target face, which required a response. Observers reported a consistent enfacement illusion after synchronous stimulation. Importantly, the synchronously stimulated face elicited more prominent N170 and P200 responses than the asynchronously stimulated face. By contrast, similar N250 and P300 responses were observed in these conditions. These results suggest that enfacement modulates early neural correlates of face encoding and facial prototypicality, rather than identity self-representations and associated emotional processes.

Matched MeSH terms: Touch Perception/physiology*
Fulltext Peripheral intravenous canula (PIVC) assessment skills among pediatric nurses: audit-based approach study

Deena C T, Li Tsu Chong, Drina Dalie, Rose A Nain, Renie M Joanes, CheristyTumbil

Malaysian Journal of Medicine and Health Sciences, 2020;16(105):4-0.
MyJurnal

Introduction: Peripheral Intravenous Cannula (PIVC) placement can cause undesirable effects, such as phlebitis. Poor PIVC care can irritate tunica intima layers of the superficial vein. The incidence of phlebitis had become a national nursing indicator, with a standard of less than 0.9%. The standard care of the patient with intravenous in- cludes a routine PIVC assessment. However, what the assessment should be based on remained unclear. The objec- tive of this study is to assess nurses’ skill in performing PIVC assessment. Methods: This is a descriptive study using an audit-based approach. It is conducted in a pediatric hospital. Nine pediatric wards were identified via stratified sampling methods. A total of 86 registered nurses consented to participate in this study. A validated research instru- ments (α = 0.83), PIVC Assessment Skill (PIVC-AS) checklist is used to audit nurses in performing PIVC assessment. PIVC-AS consists of nine audit criteria (AC), AC1: communication skill, AC2 until AC7: PIVC assessment skill, AC8: documentation skill and AC9: PIVC management. Results: Nurses communication skills to patient as in AC1 shows compliance rate of seventy six percent. The compliance rate can be explained that this study was done in the pedi- atric setting. Participants may skip this communication due to handling with a pediatric patient. More than eighty eight percent nurses comply with AC2 to AC6 which indicated their excellent skill in performing PIVC assessment every shift. However, in the AC7, only sixty seven percent comply to palpate PIVC area for any evidence of venous cord and warmth. Conclusion: This study concludes that communication between nurses and pediatric patients prior to PIVC assessment often missed out by nurses. The palpation techniques also not been carried out as compared to observation technique in pediatrics setting. Palpation technique is crucial to detect ‘warmth to touch’ because it differentiates between the early and medium stage of phlebitis.

Matched MeSH terms: Touch Perception

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