Effects Of Familiarity Research Articles

¿PERSUADEN LOS NIÑOS DE LA MISMA MANERA A SUS AMIGOS QUE A LOS ADULTOS? UN ESTUDIO CON ESCOLARES DE QUITO, ECUADOR

Introduction. The ability to persuade requires understanding how through language one can influence the mental states (EEMM) of the persuaded, so that they adopt a belief, attitude or idea that, in turn, leads them to perform some action (To et al., 2016). It has therefore been linked to theory of mind, having been shown that a greater understanding of mind is associated with a greater variety and frequency of terms referring to EEMM (Longobardi et al., 2015). However, there are no known studies on child persuasion that analyze mental state language. Objective. The aim of this study is to analyze the frequency of use of mental state terms in short persuasive texts of school-aged children, and to test the effect of addressee: asymmetry (equal vs adult), familiarity (own mother vs friend's mother) and authority (friend's mother vs school principal). Method. The participants were 117 schoolchildren (75 girls) aged 7 to 12 years from Quito (Ecuador). Each participant wrote, at an appropriate time and place, four short texts, addressed respectively to: a friend, her own mother, a friend's mother and the school principal, in an attempt to convince them of the same thing. For each text, the frequency of occurrence of EEMM terms was analyzed following the proposal of Pinto et al. (2017): Cognitive, Volitional, Emotional and Moral. Results. Two Repeated Measures ANOVAs indicate significant differences in the total frequencies of EEMM terms (in order: Volitional, Moral, Emotional, Cognitive) and that there are no significant differences in the frequency of total EEMM terms by addressee. However, for each addressee separately, four Repeated Measures ANOVAs revealed different distribution patterns in EEMM terms. Friends as addresses differ from adults by generating much higher frequency of Emotional terms and much lower frequency of Moral terms. Significantly more Moral and Cognitive terms are used with one's own mother than with a friend's mother. With the mother of a friend, significantly more Emotional terms are used than with the school principal. Discussion. The data allow us to demonstrate the effect of asymmetry (differences between text addressed to a friend and adults), familiarity (between text addressed to one's own mother and that of a friend) and authority (between text addressed to a friend's mother and the school principal) in the use of terms referring to Cognitive, Volitional, Emotional and Moral EEMM by children from 7 to 12 years of age.

Harmonic expectancy violations: Testing the effects of familiarity, lead-in time, and ecological validity

Harmonic expectancy violations: Testing the effects of familiarity, lead-in time, and ecological validity

Engaging with Second Chances: How Familiarity, Stigma, and Media Exposure Shape Public Attitudes towards Ex-Prisoner-Focused Social Enterprises

Social enterprises provide an effective method for tackling various social problems, including ex-prisoners in the domains of rehabilitation, reintegration, and the reduction of repeat offenses. While this business model is prevalent in other countries, it remains uncommon in Malaysia. This study aims to uncover the issue from the public perspective. Specifically, the objective of this study is to investigate the effects of familiarity with social enterprise models, stigmatization, and incidental news exposure on public attitudes towards ex-prisoner-focused social enterprise. Underpinned by Mere Exposure Effect Theory, Social Identity Theory, and Media Framing Theory, five hypotheses were developed and tested using partial least squares structural equation modelling on 139 cases. Results showed that familiarity with social enterprise models, stigmatization, and incidental news exposure significantly predict attitudes towards ex-prisoner-focused social enterprise. However, the moderation role of familiarity with social enterprise models was not supported for the relationship between incidental news exposure and attitudes towards ex-prisoner-focused social enterprise, and when it interacts with stigmatization. These findings contribute to the understanding of how media exposure, social stigmatization, and personal familiarity shape public perceptions of social enterprises that focus on ex-prisoner rehabilitation. The study highlights the need for targeted strategies to reduce stigmatization and leverage incidental media exposure to foster more supportive attitudes towards social enterprises that assist ex-prisoners.

Effects of experience and familiarity on visual attention and behaviours of bottlenose dolphins (Tursiops truncatus) in presence of humans

Visual attention is an intrinsic part of intra- and inter-specific interactions. Its structure (e.g. short glances vs. long gazes) depends on the species, type and expected outcome of the interaction. The outcomes of earlier repeated interactions determine the resulting valence of the relationships. Human-animal relationships rely upon species-specific cognitive abilities and attentional characteristics for associative learning and memory formation. Visual attention is crucial in cognitive processing and relationships construction, but its structure may depend on species-specific characteristics and relationships’ quality. Dolphins are renowned for their cognitive abilities and in human-care settings they have regular interactions with caretakers. Dolphins’ visual attention structure and laterality both differ depending on the visual stimulus to which the animal is attending (species-specific, non-biological). We hypothesized that visual attentional characteristics and associated behaviours, in a group of 9 captive bottlenose dolphins (Tursiops truncatus), would differ according to past experience and familiarity with humans. Human motionless tests showed a role of experience (time spent) in the facility on play and vocal production near humans regardless of familiarity. However, familiarity influenced dolphin presence near humans and visual laterality: they stayed longer and used their right eye more to glance at familiar humans. These findings provide new insights on how dolphins cognitively process stimuli according to familiarity and past experiences, as well as on how human – animal relationships evolve in captive settings.

To Play or Not to Play? Effects of Playmate Familiarity and Social Isolation on Social Play Engagement in Three Laboratory Rat Strains.

Social play is a motivating and rewarding behavior displayed by juveniles of many mammalian species, including humans and rats. Social play is vital to the development of social skills. Autistic children show less social play engagement which may contribute to their impairments in social skills. There is limited knowledge about what external conditions may positively or negatively influence social play engagement in humans or other animals. Therefore, we determined how two common external conditions, playmate familiarity and social isolation, modulate social play levels and social play defense tactics in juveniles of three common laboratory rat strains: Long-Evans, Sprague-Dawley, and Wistar. Males and females were socially isolated for either 2h or 48h prior to social play testing and were then exposed to either a familiar (cage mate) or novel playmate, creating four testing conditions: 2h-Familiar, 48h-Familiar, 2h-Novel, and 48h-Novel. Both playmate familiarity and social isolation length influenced social play behavior levels and tactics in juvenile rats, but did so differently for each of the three rat strains. Long-Evans played most with a familiar playmate, irrespective of time isolated, Sprague-Dawley played most in the 48h-Familiar condition, and Wistar played the least in the 2h-Familiar condition, but Wistar played more with a novel playmate than Long-Evans and Sprague-Dawley. Analysis of social play tactics by the playmates in response to nape attacks by the experimental rats revealed strain differences with novel playmates. Here, Sprague-Dawley and Wistar defended more nape attacks than Long-Evans. Sprague-Dawley evaded these attacks, thereby shortening body contact. In contrast, Wistar turned to face their playmate attacker and showed more complete rotations, thereby extending body contact and wrestling longer. Role reversals, which increase social play reciprocity and reflect the quality of social play, were higher in Long-Evans and Sprague-Dawley with familiar playmates. Role reversals decreased for Sprague-Dawley but increased for Wistar after 48h isolation. The effects of playmate familiarity or social isolation length on social play levels and tactics were similar across sex for all three strains. In conclusion, we showed that two common external factors (playmate familiarity and social isolation length) that largely vary across social play studies have a major impact on the level and quality of social play in the three rat strains. Strain differences indicate higher level and quality of social play with familiar playmates in Long-Evans, with familiar playmates after short isolation in Sprague-Dawley, and with novel playmates after longer isolation for Wistar. Future research could determine whether strain differences in neuronal mechanisms underlie these condition-induced variations in social play engagement. Our findings are also informative in suggesting that external conditions like playmate familiarity and social isolation length could influence social play levels and social play quality in typical and atypical children.

The ecology of relatedness: How living around family (or not) matters.

How does living in an environment with many or few family relatives shape our psychology? Here, we draw upon ideas from behavioral ecology to explore the psychological effects of ecological relatedness-the prevalence of family relatives in one's environment. We present six studies, both correlational and experimental, that examine this. In general, people and populations that live in ecologies with more family relatives (Studies 1-4b), or who imagine themselves to be living in such ecologies (Studies 2/3a/3b/4b), engage in more extreme pro-group behavior (e.g., being willing to go to war for their country), hold more interdependent self-concepts, are more punishing of antisocial behaviors (e.g., support the death penalty for murder), identify themselves as more connected to and trust nearby groups (e.g., their community and neighbors) but less so distant groups (e.g., foreigners, the world), and also judge sibling incest as more morally wrong. These effects are examined across three countries (the United States, Ghana, the Philippines) and are robust to a range of controls and alternative explanations (e.g., ingroup preferences, familiarity effects, kinship intensity). The current work highlights the psychological effects of an underexamined dimension of our social ecology, provides a set of methods for studying it, and holds implications for understanding the ecological origins of a range of social behaviors and cultural differences. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Consumption of Sugar-Sweetened Beverages by Polish Young Adults: A Preliminary Study on the Importance of Sugar Tax Familiarity and Health Effects.

Consumption of sugar-sweetened beverages (SSBs) contributes to the risk of developing overweight and obesity in children and adults. Thus, reducing free sugar is a globally recognized public health priority. The implementation of a sugar tax is one way of achieving this goal. This study aimed to investigate the relationship between familiarity with the sugar tax and its importance in reducing obesity, the perceived health consequences of SSBs, situations and reasons for consumption, and the frequency of SSB consumption. A cross-sectional study was conducted in May 2022 among 216 Polish adults (age 18-45). Hierarchical cluster analysis was used to identify three homogeneous clusters with regard to the perceived health consequences of consuming SSBs. A logistic regression model was used to verify the relationship between the frequency of SSB consumption (dependent variable) and other variables. Respondents with higher familiarity with the sugar tax (OR: 0.594; 95% CI: 0.42-0.85) and those in the "Unaware of disease" (OR: 0.437; 95% CI: 0.18-0.94) and "Disease-conscious" (OR: 0.484; 95% CI: 0.24-0.97) clusters were less likely to consume SSBs at least once per week than those in the "Moderately disease-conscious" cluster. Both the place of SSB consumption (i.e., restaurant-OR: 1.847; 95% CI: 1.14-3.64, work or university-OR: 3.217; 95% CI: 1.51-6.88, family home-OR: 2.877; 95% CI: 1.50-5.53) as well as a preference for their taste (OR: 4.54; 95% CI: 1.66-12.45) increased the chance of consuming SSBs at least once a week. In conclusion, it is necessary to continue educating the public about the health consequences of SSB consumption. The use of legislative measures (i.e., sugar tax) also contributes to reducing SSB consumption and can thus counteract the increasing obesity rate.

Dynamic modulation of social gaze by sex and familiarity in marmoset dyads.

Social communication relies on the ability to perceive and interpret the direction of others' attention, and is commonly conveyed through head orientation and gaze direction in humans and nonhuman primates. However, traditional social gaze experiments in nonhuman primates require restraining head movements, significantly limiting their natural behavioral repertoire. Here, we developed a novel framework for accurately tracking facial features and three-dimensional head gaze orientations of multiple freely moving common marmosets ( Callithrix jacchus ). By combining deep learning-based computer vision tools with triangulation algorithms, we were able to track the facial features of marmoset dyads within an arena. This method effectively generates dynamic 3D geometrical facial frames while overcoming common challenges like occlusion. To detect the head gaze direction, we constructed a virtual cone, oriented perpendicular to the facial frame. Using this pipeline, we quantified different types of interactive social gaze events, including partner-directed gaze and joint gaze to a shared spatial location. We observed clear effects of sex and familiarity on both interpersonal distance and gaze dynamics in marmoset dyads. Unfamiliar pairs exhibited more stereotyped patterns of arena occupancy, more sustained levels of social gaze across social distance, and increased social gaze monitoring. On the other hand, familiar pairs exhibited higher levels of joint gazes. Moreover, males displayed significantly elevated levels of gazes toward females' faces and the surrounding regions, irrespective of familiarity. Our study reveals the importance of two key social factors in driving the gaze behaviors of a prosocial primate species and lays the groundwork for a rigorous quantification of primate behaviors in naturalistic settings.

ADAPTATION OF TESTING PROCEDURES AND STABILIZATION OF RESULTS IN PRESCHOOL RHYTHMIC GYMNASTS

The aim of this study was to familiarize preschool rhythmic gymnasts with testing procedures and to determine the number of familiarization attempts needed to stabilize the test results. Thirty-six female rhythmic gymnasts aged 5.14±0.79 years (body height: 119.44±5.98 cm; body mass: 21.46±3.35 kg) volunteered for the study. All gymnasts were free of injury, trained regularly (two days per week, approximately 60 minutes per session), and participated in the individual B level competitions. The main findings indicated a statistically significant difference between the variables of spine and leg flexibility (p<0.00), standing long jump (p<0.00), balance (p<0.00), and shoulder flexion and extension (p<0.00). According to the results obtained in this research, familiarization can significantly improve scores in motor tests for all variables (spine and leg flexibility, balance, standing long jump, and shoulder flexion and extension) in preschool rhythmic gymnasts. These findings suggest several possibilities for further research, such as investigating the long-term effects of familiarization on motor skill development, the specific mechanisms through which familiarization enhances performance, and its impact across different age groups and skill levels in rhythmic gymnastics. Rhythmic gymnastics trainers and other coaches of aesthetic sports should adapt and introduce participants to test protocols to avoid errors in testing.

Music Familiarization Elicits Functional Connectivity Between Right Frontal/Temporal and Parietal Areas in the Theta and Alpha Bands

Frequent listening to unfamiliar music excerpts forms functional connectivity in the brain as music becomes familiar and memorable. However, where these connections spectrally arise in the cerebral cortex during music familiarization has yet to be determined. This study investigates electrophysiological changes in phase-based functional connectivity recorded with electroencephalography (EEG) from twenty participants’ brains during thrice passive listening to initially unknown classical music excerpts. Functional connectivity is evaluated based on measuring phase synchronization between all pairwise combinations of EEG electrodes across all repetitions via repeated measures ANOVA and between every two repetitions of listening to unknown music with the weighted phase lag index (WPLI) method in different frequency bands. The results indicate an increased phase synchronization during gradual short-term familiarization between the right frontal and the right parietal areas in the theta and alpha bands. In addition, the increased phase synchronization is discovered between the right temporal areas and the right parietal areas at the theta band during gradual music familiarization. Overall, this study explores the short-term music familiarization effects on neural responses by revealing that repetitions form phasic coupling in the theta and alpha bands in the right hemisphere during passive listening.

Familiarity with non-famous faces increases "person misidentification".

People sometimes mistakenly identify an unknown person they encounter as a known person. Previous studies have elucidated this phenomenon and revealed that it is a common experience. However, no experimental study has identified factors associated with its occurrence. We termed this relatively under-examined phenomenon as "person misidentification" and examined its factors. Specifically, we focused on (1) establishing experimental procedures to detect person misidentification in a laboratory context and (2) investigating the mechanism by which visual familiarity with the encountered unknown faces contributes to person misidentification. The results indicated that the developed procedure measured 247 misidentifications in 72 of 106 participants in all experiments. Although the effect of familiarity on person misidentification was not observed in Experiment 1, this effect was detected in Experiment 2, where the manipulation of familiarity was enhanced and confirmed. Concretely, unknown faces with familiarity enhanced by subliminal exposure were more frequently misidentified as another known person. This indicates that familiarity with an encountered face contributes to and induces person misidentification. In addition, the results demonstrated that similarities, especially in terms of hairstyle, between the encountered face and the misidentified known person might be related to its occurrence. These results have rich implications and expand the literature on face processing.

Oxytocin effects on socially transmitted food preferences are moderated by familiarity between rats.

In the socially transmitted food preference (STFP) paradigm, rats change their preference for food rewards after socially interacting with a conspecific who has been fed with the originally non-preferred food. Here, we asked if oxytocin (OXT), a neuropeptide known for its role in social affiliation and social behavior, plays a role in STFP. Since OXT's influences on social behavior can be familiarity-dependent, we further asked if OXT effects on STFP are moderated by the familiarity between rats. Does OXT modulate rats' socially transmitted food choices in a familiarity-dependent way. We systemically injected either vehicle, low-dose (0.25mg/kg) of OXT, or large-dose (1.0mg/kg) of OXT before social interaction with either a familiar cagemate (in-group) or an unfamiliar conspecific from a different cage (out-group). We found an intergroup bias in STFP: vehicle-treated rats showed larger socially transmitted changes in food preference in the out-group than the in-group condition. OXT modulated STFP in a familiarity-dependent way: OXT prevented the increase in the consumption of the non-preferred food in the out-group, and decreased the consumption of the preferred food in the in-group. These effects were dose-dependent and observed under acute OXT action, but also on the subsequent day when acute OXT effects dissipated, suggesting long-lasting social learning effects of OXT. Additional analyses suggest that the familiarity and dose-dependent effects of OXT on STFP cannot be attributed to OXT's anorexic actions or differences in the duration of the social interactions. OXT modulates STFP in a familiarity-dependent way.

Exploring the effect of familiarity on sports performance food perception in various simulated consumption contexts

Leveraging immersive room technologies this study sought to explore the impact of consumer familiarity on the perceived appropriateness and liking of high-protein energy bars across three distinct contexts: Pre-Workout, Office Break, and Outdoor Break. Results showed that both context and familiarity have significant influence on consumer perceptions, with high familiarity consumers giving the bars greater liking and appropriateness scores than low familiarity consumers. The Office Break context received the highest appropriateness and liking scores, while the Outdoor Break context was rated lowest. Post-test focus groups revealed diverse perspectives on the balance between utility and hedonism in food consumption, underscoring the influence of consumer usage patterns, consumption context, and prior product experience.

Longitudinal objective assessment of speech in Multiple Sclerosis

BackgroundRemote objective tests may supplement in-clinic examination to better inform treatment decisions. Previous cross-sectional studies presented objective speech metrics as potential markers of Multiple Sclerosis (MS) disease progression. ObjectiveTo examine the short-term stability and long-term sensitivity of speech metrics to MS progression. MethodsWe prospectively recorded speech from people with MS at baseline, six, twelve weeks, and at ten months or longer after baseline (1y+). Only people with a definite diagnosis of MS and without other potential causes of dysarthria were included. Speech tasks comprehended 1) a sustained vowel /a/, 2) saying the days of the week, 3) repeating the non-word pa-ta-ka multiple times as fast as possible, 4) reading the Grandfather Passage, and 5) telling a personal story. We selected speech metrics of interest according to their association with MS presence, correlation with general disability, and short-term metric stability in the absence of disease progression. Selected speech metrics were analysed for short- versus long-term changes in the whole MS cohort and in the clinically stable versus progression subgroups at 1y+. ResultsSixty-nine people with MS participated (76.8 % female, age mean 47.5 ± 11.1 SD, EDSS median 3.5, interquartile range 3.5). Twenty-six unique speech metrics satisfied the suitability criteria. On average, reading rate improved 3.5 % for all people with MS and 6.5 % for slow readers with MS from baseline to the six-week, driven by a reduction in pauses. At 1y+, participants showed a 3.1 % average reduction in vocalization time during the reading task, which was similar in the progression (n = 29) and non-progression (n = 40) groups and thus unrelated to disease progression. Both findings are in the opposite direction of what would be generally expected for deterioration in speech performance and might be attributable to familiarity and training effects. Other speech metrics showed either negligible change or a similar variability between short-term and long-term differences. ConclusionMost individual long-term changes were small and within short-term variability intervals, irrespective of clinical disease progression. Familiarity and practice effects might have blunted the measurement of change. The present lack of longitudinal sensitivity of speech in MS contradicts previous cross-sectional findings and requires further investigation.

Can time flow differently if you are a virtual reality newcomer?

Virtual Reality (VR) technologies have entered many aspects of daily life (e.g., workplace, education, gaming). VR users report that time flows faster when immersed in a virtual environment. Such an effect is supported by recent scientific evidence (Mullen & Davidenko, 2021). Indeed, a familiarity effect could foster such a time compression effect. To investigate this possibility, a between-subject design was adopted: in one condition, participants explored a virtual environment through a head-mounted display (HMD), whereas in the control condition, participants explored the same environment through a standard monitor. Participants were all instructed to produce an interval of 4 minutes so that longer produced durations in an interval production task were evidence of underestimation. Adopting a prospective time estimation paradigm, the time intervals produced were compared between the two conditions. Results confirmed the time compression effect: participants in the VR condition reported longer produced intervals than participants in the control condition. Furthermore, the significant interaction with levels of prior experience with VR technologies suggests that time compression effects may be more pronounced for VR newcomers, thus favoring an interpretation in terms of familiarity. The present findings provide valuable insights into the perception of time in virtual environments, suggesting the importance of continued research in this emerging technology. Limits, implications, and the need for further research are finally discussed.

Familiarity Effect in the Perception of Handwriting: Evaluating in-group/out-group effect among readers of the Latin script

There is much evidence that familiarity can affect perception of stimuli, with items that are familiar to the individual being preferred and better remembered. Previous research has also shown that familiarity with a typeface increases preference for it, but no studies have evaluated the impact of familiarity in relation to the affect towards handwritten text. For the present study, a two-part experiment (N = 422) was designed to measure how contemporary users of the Latin script perceive handwritten text. The first section was designed to collect specimens of the participants’ handwriting. The second, which was adapted to each participant’s handwriting style, measured implicit judgments of certain familiar letter shapes against unfamiliar ones. Results show that familiarity positively influences the extent to which one judges the friendliness and trustworthiness of handwritten text. Furthermore, the greater the similarity to how one writes a letterform, the greater the observed effect in terms of perceived friendliness. These findings suggest that people have an implicit bias towards handwriting that looks like their own.

Beyond balance: The role of the Vestibular system in action recognition

BackgroundAction recognition is a fundamental aspect of human interaction. This process is mediated by the activation of shared sensorimotor representations during action execution and observation. Although complex movements involving balance or head and trunk rotations require vestibular signals for effective execution, their role in the recognition of others' actions is still unknown. ObjectiveTo investigate the causal involvement of the vestibular system in the discrimination of actions performed by others and whether this is influenced by motor familiarity. MethodsIn a single-blind design involving 25 healthy participants, Galvanic Vestibular Stimulation (GVS) was administered during an Action Discrimination Task (ADT), in which videos of actions categorized as vestibular/non-vestibular and familiar/unfamiliar were presented. Following each video, participants were required to identify the climax of the previously viewed action between two image options, using a two-alternative forced choice paradigm. The ADT was performed in active and sham GVS conditions, with left or right anodal montages. Response Times (RTs), Accuracy, and subjective motor familiarity were recorded for each action category. ResultsIn sham GVS condition, an overall familiarity effect was observed, where RTs for familiar actions were faster than RTs for unfamiliar ones, regardless of vestibular engagement (p < .001; ηp2 = .80). Conversely, under active GVS, a selective interference of the identification of vestibular familiar actions was observed compared to sham. Specifically, GVS prolonged RTs for recognizing familiar vestibular actions (p = .004, d = .59) while concurrently enhancing visual sensitivity (d’) for the same actions (p = .03, r = .21). ConclusionThese findings demonstrate the contribution of the vestibular system to action recognition. GVS disrupted the sensorimotor representation of vestibular actions and led to increased reliance on an alternative processing system focused on visual analysis of limb positions. This dissociation provides valuable insights for future investigations into the complex relationship between vestibular signals and cognitive processes involved in action identification, essential for developing innovative GVS interventions, particularly for individuals with sensorimotor or vestibular disorders.

A Study on the Effect of the Characteristics of Kiosks in Food Service on the Attitude of Use and the Intention of Continuous Use - Focusing on the Moderating Effect of Kiosk Familiarity -

A Study on the Effect of the Characteristics of Kiosks in Food Service on the Attitude of Use and the Intention of Continuous Use - Focusing on the Moderating Effect of Kiosk Familiarity -

The mediating effect of firm familiarity between corporate social responsibility and reputation, trust, and customer satisfaction

AbstractWhen assessing Corporate Social Responsibility (CSR) and its impact on company performance there may be an informational asymmetry caused by differences in Familiarity with the firm assessed. This study uses participants' ratings of six large UK retailers to establish the direct relationships between the CSR components of Economic, Legal, Ethical, and Discretionary, and the firm performance dimensions of Reputation, Trust, and Customer Satisfaction, then explores whether Familiarity mediates the relationships between the CSR and the performance dimensions. The findings show CSR Economic, Legal, and Discretionary are associated with firm Reputation and Trust, but not Customer Satisfaction, and that CSR Ethical is associated with Reputation, Trust, and Customer Satisfaction. Familiarity acts as a mediator between CSR Economic, Legal and Discretionary, and Trust and Customer Satisfaction. Familiarity also mediates the relationship between CSR Discretionary and Reputation. The link between CSR Economic and Legal, and Customer Satisfaction only emerges in mediation analysis. Managerial implications suggest increasing familiarity is vital through open and continuous communication about CSR programs is essential to keep customers aware. Methodological implications propose reevaluating the methods used to measure (CSR), taking into consideration its' multi‐faceted nature and the diverse impacts that different aspects have on familiarity and performance measures.

Mobile phone conversation during nighttime driving: Effects on driving behavior

Objectives This study aims to investigate the impact of mobile phone use (specifically, conversation), considering various use modes, on driving behavior at night. Mobile phone use is a source of driver distraction and has been associated with increased accident risk. Driving at night also entails higher accident risk and severity compared to daytime driving. Several studies have investigated the impact of mobile phone use on driving behavior; however, only a few have explored the differences between the different use modes. Most present studies involved daytime driving, although mobile phone use at night is equally if not more prevalent. Method A driving simulator experiment was designed in which 55 participants drove under nighttime simulator conditions, in different road environments (urban and rural) and under different types of distraction: no distraction, handheld, wired earphone, and speaker mode. The drives were performed during late afternoon and evening hours to resemble nighttime conditions both in the simulator and in the actual environment. Participants also completed a questionnaire for collection of different types of data. Results Results highlight the effect of mobile phone use on driving behavior, through specific indicators. Mobile phone use resulted in reduced 85th percentile driving speed and 85th percentile acceleration and increased reaction time and lateral deviation. However, safer stopping distance was observed in rural roads. Parameters relative to mobile phone use familiarity and exposure were found to mitigate mobile phone use effects. Conclusions Mobile phones affect driving behavior at night in a similar manner to that noted in several different studies considering daytime driving. The hands-free regulation should be revisited, because driver distraction also occurred under this particular use mode. Further research is required considering mobile phone use familiarity and exposure and effects of mobile phone use, because the latter is reduced with an increase in the former. Stopping distance, an understudied but more immediate surrogate measure of road safety, was increased with mobile phone use, mainly as a result of the risk compensation behavior that drivers adopt, indicating that more research is required in this field.