Toward a Developmental Science of Politics.

In this monograph, we argue for the establishment of a developmental science of politics that describes, explains, and predicts the formation and change of individuals' political knowledge, attitudes, and behavior beginning in childhood and continuing across the life course. Reflecting our goal of contributing both theoretical conceptualizations and empirical data, we have organized the monograph into two broad sections. In the first section, we outline theoretical contributions that the study of politics may make to developmental science and provide practical reasons that empirical research in the domain of politics is important (e.g., for identifying ways to improve civics education and for encouraging higher voting rates among young adults). We also review major historical approaches to the study of political development and provide an integrative theoretical framework to ground future work. Drawing on Bronfenbrenner's ecological systems model as an organizing scheme and emphasizing social justice issues, we describe how factors rooted in cultural contexts, families, and children themselves are likely to shape political development. In the second section of the monograph, we argue for the importance and utility of studying major political events, such as presidential elections, and introduce the major themes, rationales, and hypotheses for a study of U.S. children's views of the 2016 U.S. presidential election. In addition, we apply a social-justice lens to political thought and participation, addressing the role of gender/sex and race/ethnicity in children's political development broadly, and in their knowledge and views of the 2016 U.S. presidential election specifically. In interviews conducted within the month before and after the election, we examined two overarching categories of children's political attitudes: (a) knowledge, preferences, and expectations about the 2016 election, and (b) knowledge and attitudes concerning gender/sex and politics, particularly relevant for the 2016 election given Hillary Clinton's role as the first female major-party candidate for the presidency. Participants were 187 children (101 girls) between 5 and 11 years of age (M = 8.42 years, SD = 1.45 years). They were recruited from schools and youth organizations in five counties in four U.S. states (Kansas, Kentucky, Texas, and Washington) with varying voting patterns (e.g., Trump voters ranged from 27% to 71% of county voters). The sample was not a nationally representative one, but was racially diverse (35 African American, 50 Latinx, 81 White, and 21 multiracial, Asian American, Middle Eastern, or Native American children). In addition to several child characteristics (e.g., age, social dominance orientation [SDO]), we assessed several family and community characteristics (e.g., child-reported parental interest in the election and government-reported county-level voting patterns, respectively) hypothesized to predict outcome variables. Although our findings are shaped by the nature of our sample (e.g., our participants were less likely to support Trump than children in larger, nationwide samples were), they offer preliminary insights into children's political development. Overall, children in our sample were interested in and knowledgeable about the presidential election (e.g., a large majority identified the candidates correctly and reported some knowledge about their personal qualities or policy positions). They reported more information about Donald Trump's than Hillary Clinton's policies, largely accounted for by the substantial percentage of children (41%) who referred to Trump's immigration policies (e.g., building a wall between the United States and Mexico). Overall, children reported as many negative as positive personal qualities of the candidates, with negative qualities being reported more often for Trump than for Clinton (56% and 18% of children, respectively). Most children (88%) supported Clinton over Trump, a preference that did not vary by participants' gender/sex or race/ethnicity. In their responses to an open-ended inquiry about their reactions to Trump's win, 63% of children reported negative and 18% reported positive emotions. Latinx children reacted more negatively to the election outcome than did White children. Girls' and boys' emotional responses to the election outcome did not differ. Children's personal interest in serving as U.S. president did not vary across gender/sex or racial/ethnic groups (overall, 42% were interested). Clinton's loss of the election did not appear to depress (or pique) girls' interest in becoming U.S. president. With respect to the role of gender/sex in politics, many children (35%) were ignorant about women's absence from the U.S. presidency. Only a single child was able to name a historical individual who worked for women's civil rights or suffrage. Child characteristics predicted some outcome variables. For example, as expected, older children showed greater knowledge about the candidates than did younger children. Family and community characteristics also predicted some outcome variables. For example, as expected, participants were more likely to support Trump if they perceived that their parents supported him and if Trump received a greater percentage of votes in the children's county of residence. Our data suggest that civic education should be expanded and reformed. In addition to addressing societal problems requiring political solutions, civics lessons should include the histories of social groups' political participation, including information about gender discrimination and the women's suffrage movement in U.S. political history. Providing children with environments that are rich in information related to the purpose and value of politics, and with opportunities and encouragement for political thought and action, is potentially beneficial for youth and their nations.

Incidental retrieval of prior emotion mimicry.

When observing emotional expressions, similar sensorimotor states are activated in the observer, often resulting in physical mimicry. For example, when observing a smile, the zygomaticus muscles associated with smiling are activated in the observer, and when observing a frown, the corrugator brow muscles. We show that the consistency of an individual's facial emotion, whether they always frown or smile, can be encoded into memory. When the individuals are viewed at a later time expressing no emotion, muscle mimicry of the prior state can be detected, even when the emotion itself is task irrelevant. The results support simulation accounts of memory, where prior embodiments of other's states during encoding are reactivated when re-encountering a person.

Are group-based and individual physiotherapy exercise programmes equally effective for musculoskeletal conditions? A systematic review and meta-analysis.

BACKGROUND: Musculoskeletal pain is common and its treatment costly. Both group and individual physiotherapy interventions which incorporate exercise aim to reduce pain and disability. Do the additional time and costs of individual physiotherapy result in superior outcomes? OBJECTIVE: To compare the effectiveness of group and individual physiotherapy including exercise on musculoskeletal pain and disability. METHODS: Eleven electronic databases were searched by two independent reviewers. Randomised controlled trials (RCTs) including participants with musculoskeletal conditions which compared group and individual physiotherapy interventions that incorporated exercise were eligible. Study quality was assessed using the PEDro scale by two independent reviewers, and treatment effects were compared by meta-analyses. RESULTS: Fourteen RCTs were eligible, including patients with low back pain (7 studies), neck pain (4), knee pain (2) and shoulder pain (1). We found no clinically significant differences in pain and disability between group and individual physiotherapy involving exercise. CONCLUSIONS: Only small, clinically irrelevant differences in pain or disability outcomes were found between group and individual physiotherapy incorporating exercise. Since all but one study included other interventions together with exercise in either the group or individual arm, deciphering the unique effect of the way in which exercise is delivered is difficult. Group interventions may need to be considered more often, given their similar effectiveness and potentially lower healthcare costs.

Representational momentum reveals visual anticipation differences in the upper and lower visual fields.

Recent empirical research has revealed differences in functional capacity between the upper and lower visual fields (VFs), with the lower VF exhibiting superiority in visual perception skills. Similarly, functional differences between the left and right hemispheres elicit a predominance for visuospatial processing in the left visual field (left VF). Both anatomical as well as evolutionary arguments have been adopted in accounting for these variations in function. Preceding upper and lower VF research has typically investigated either static stimulus perception or the visual processing of upper limb action. The aim of the current research was to investigate whether the lower VF benefits associated with limb control transcend to visual anticipation (the perception of motion). Methods were based on Khan and Lawrence (Exp Brain Res 164:395-398, 2005), who investigated upper/lower VF differences in visuomotor control, but utilising a representational momentum paradigm to isolate perceptual processes. Thirty-two participants were randomised into either a left or right VF group and completed a perceptual computer-based task in the upper and lower VF, where they were required to judge the final position of a moving object before it disappeared. Two aspects of the distributions of same responses were then analysed; the central tendency (weighted means) and the variability. Results revealed that in the left VF, weighted means for the lower VF were significantly greater than for the upper VF [t(14) = 2.242, p = 0.042]. In both left and right VFs, variability was greater in the upper compared to lower VF. This provides new findings regarding visual processes in the different visual fields. While visual search and large scene perception has been found to be superior in the upper VF, here we find that visual anticipation, like target-directed visuomotor skill, is superior in the lower VF.

Influence of motor imagery training on hip abductor muscle strength and bilateral transfer effect.

Motor imagery training could be an important treatment of reduced muscle function in patients and injured athletes. In this study, we investigated the efficacy of imagery training on maximal force production in a larger muscle group (hip abductors) and potential bilateral transfer effects. Healthy participants (n = 77) took part in two experimental studies using two imagery protocols (∼30 min/day, 5 days/week for 2 weeks) compared either with no practice (study 1), or with isometric exercise training (study 2). Maximal hip abduction isometric torque, electromyography amplitudes (trained and untrained limbs), handgrip strength, right shoulder abduction (strength and electromyography), and imagery capability were measured before and after the intervention. Post intervention, motor imagery groups of both studies exhibited significant increase in hip abductors strength (∼8%, trained side) and improved imagery capability. Further results showed that imagery training induced bilateral transfer effects on muscle strength and electromyography amplitude of hip abductors. Motor imagery training was effective in creating functional improvements in limb muscles of trained and untrained sides.

Co-occurrence of marine and freshwater phycotoxins in oysters, and analysis of possible predictors for management.

Oysters (Crassostrea virginica) were screened for 12 phycotoxins over two years in nearshore waters to collect baseline phycotoxin data and to determine prevalence of phycotoxin co-occurrence in the commercially and ecologically-relevant species. Trace to low concentrations of azaspiracid-1 and -2 (AZA1, AZA2), domoic acid (DA), okadaic acid (OA), and dinophysistoxin-1 (DTX1) were detected, orders of magnitude below seafood safety action levels. Microcystins (MCs), MC-RR and MC-YR, were also found in oysters (maximum: 7.12 µg MC-RR/kg shellfish meat wet weight), warranting consideration of developing action levels for freshwater phycotoxins in marine shellfish. Oysters contained phycotoxins that impair shellfish health: karlotoxin1-1 and 1-3 (KmTx1-1, KmTx1-3), goniodomin A (GDA), and pectenotoxin-2 (PTX2). Co-occurrence of phycotoxins in oysters was common (54%, n = 81). AZAs and DA co-occurred most frequently of the phycotoxins investigated that are a concern for human health (n = 13) and PTX2 and KmTxs co-occurred most frequently amongst the phycotoxins of concern for shellfish health (n = 9). Various harmful algal bloom (HAB) monitoring methods and tools were assessed for their effectiveness at indicating levels of phycotoxins in oysters. These included co-deployed solid phase adsorption toxin tracking (SPATT) devices, toxin levels in particulate organic matter (POM, >1.5 µm) and whole water samples and cell concentrations from water samples as determined by microscopy and quantitative real-time PCR (qPCR). The dominant phycotoxin varied between SPATTs and all other phycotoxin sample types, and out of the 11 phycotoxins detected in oysters, only four and seven were detected in POM and whole water respectively, indicating phycotoxin profile mismatch between ecosystem compartments. Nevertheless, there were correlations between DA in oysters and whole water (simple linear regression [LR]: R2 = 0.6, p < 0.0001, n = 40), and PTX2 in oysters and SPATTs (LR: R2 = 0.3, p = 0.001, n = 36), providing additional monitoring tools for these phycotoxins, but oyster samples remain the best overall indicators of seafood safety.

Women, work, and families during the COVID-19 pandemic: Examining the effects of COVID policies and looking to the future.

The far-reaching, negative effects of the COVID-19 pandemic have impacted healthcare, economic, public safety, and social systems globally. The public safety measures put in place in the United States during the COVID-19 pandemic, including sheltering in places orders and shutdowns of schools and places of work, negatively impacted the employment status and increased time spent in domestic work and childcare for women. In this paper, we review and analyze the impacts, both direct and indirect, of COVID-related policies on the lives of women. Specifically, we outline how the progression of policies aimed at addressing both public safety and economic recovery during the COVID-19 pandemic affected women's health, paid and unpaid work, and wellbeing. We will focus on the impacts of policies implemented in the United States in comparison to policies that were implemented globally to address similar issues during the first two years of the COVID-19 pandemic. Finally, we conclude with recommendations for policies that could prevent similar disparate impacts on women in future crises.

Tat RNA silencing suppressor activity contributes to perturbation of lymphocyte miRNA by HIV-1.

BACKGROUND: MicroRNA (miRNA)-mediated RNA silencing is integral to virtually every cellular process including cell cycle progression and response to virus infection. The interplay between RNA silencing and HIV-1 is multifaceted, and accumulating evidence posits a strike-counterstrike interface that alters the cellular environment to favor virus replication. For instance, miRNA-mediated RNA silencing of HIV-1 translation is antagonized by HIV-1 Tat RNA silencing suppressor activity. The activity of HIV-1 accessory proteins Vpr/Vif delays cell cycle progression, which is a process prominently modulated by miRNA. The expression profile of cellular miRNA is altered by HIV-1 infection in both cultured cells and clinical samples. The open question stands of what, if any, is the contribution of Tat RNA silencing suppressor activity or Vpr/Vif activity to the perturbation of cellular miRNA by HIV-1. RESULTS: Herein, we compared the perturbation of miRNA expression profiles of lymphocytes infected with HIV-1(NL4-3) or derivative strains that are deficient in Tat RNA silencing suppressor activity (Tat K51A substitution) or ablated of the vpr/vif open reading frames. Microarrays recapitulated the perturbation of the cellular miRNA profile by HIV-1 infection. The miRNA expression trends overlapped ~50% with published microarray results on clinical samples from HIV-1 infected patients. Moreover, the number of miRNA perturbed by HIV-1 was largely similar despite ablation of Tat RSS activity and Vpr/Vif; however, the Tat RSS mutation lessened HIV-1 downregulation of twenty-two miRNAs. CONCLUSIONS: Our study identified miRNA expression changes attributable to Tat RSS activity in HIV-1(NL4-3). The results accomplish a necessary step in the process to understand the interface of HIV-1 with host RNA silencing activity. The overlap in miRNA expression trends observed between HIV-1 infected CEMx174 lymphocytes and primary cells supports the utility of cultured lymphocytes as a tractable model to investigate interplay between HIV-1 and host RNA silencing. The subset of miRNA determined to be perturbed by Tat RSS in HIV-1 infection provides a focal point to define the gene networks that shape the cellular environment for HIV-1 replication.

Exploring patient experiences of participating in a group exercise class for the management of nonspecific shoulder pain.

OBJECTIVE: Recent evidence has demonstrated that group-based physiotherapy interventions for musculoskeletal pain can have similar clinical outcomes compared to one-to-one treatment. This study qualitatively explored the experiences of individuals who participated in a physiotherapist-led group exercise class for people with nonspecific shoulder pain (NSSP). METHODS: Semi-structured interviews were carried out with 23 people with NSSP, who had recently participated in a 6-week structured exercise class. All recorded verbal data were transcribed verbatim. Transcripts of interview data were verified by participants and analyzed using thematic analysis. RESULTS: The exercise class was positively evaluated by all participants. Four themes emerged from the data: (1) the participant's experiences of support, motivation, and learning from peers; (2) the preference for an exercise class compared to individual physiotherapy; (3) the physiotherapist as an educator and facilitator; and (4) beliefs about pain and exercise. CONCLUSION: Among those interviewed, the exercise class was described as providing an environment conducive to the development of relationships, friendships, humor and fun, gaining mastery of their exercises, and encouraging the transition toward self-management of their pain. For those who had previous experience of one-to-one physiotherapy, the exercise class was evaluated as the preferred mode of physiotherapy delivery. The findings of this study support a move away from traditional one-on-one physiotherapy sessions to the potentially more cost-effective group setting.

Dependence of DNA sequence selectivity and cell cytotoxicity on azinomycin A and B epoxyamide stereochemistry.

Evaluation of the importance of C18/C19 stereochemistry of azinomycin A/B epoxyamide partial structures with respect to DNA alkylation sequence selectivity is reported using a unique assay with a DNA oligomer containing imbedded normal (5'-GGC-3'/3'-CCG-5') and inverted (5'-CGG-3'/3'-GCC-5') azinomycin consensus cross-linking sequences. Both species were found to have unique selectivity profiles and alkylate DNA in a manner distinct from azinomycin B. Computational docking experiments support altered binding modes for the enantiomers.

Vision-for-action: the effects of object property discrimination and action state on affordance compatibility effects.

When a person views an object, the action the object evokes appears to be activated independently of the person's intention to act. We demonstrate two further properties of this vision-to-action process. First, it is not completely automatic, but is determined by the stimulus properties of the object that are attended. Thus, when a person discriminates the shape of an object, action affordance effects are observed; but when a person discriminates an object's color, no affordance effects are observed. The former, shape property is associated with action, such as how an object might be grasped; the latter, color property is irrelevant to action. Second, we also show that the action state of an object influences evoked action. Thus, active objects, with which current action is implied, produce larger affordance effects than passive objects, with which no action is implied. We suggest that the active object activates action simulation processes similar to those proposed in mirror systems.

Magnet® Facility Nurses: Pursuing a Baccalaureate Degree in Nursing.

UNLABELLED: The aim is to explore factors that motivate and obstacles that impede nurses from pursuing baccalaureate education when employed by a Magnet® organization. BACKGROUND: In the Future of Nursing (2011), the Institute of Medicine concluded that the baccalaureate should be the minimum education for nurses. Magnet organizations are encouraged to meet the Institute of Medicine goal of 80% of nurses with a baccalaureate by 2020. METHOD: In February 2014, a 15-item on-line survey was sent to nurses at a western Magnet-designated hospital to assess factors that motivate registered nurses to achieve a baccalaureate. Descriptive statistics and a general thematic analysis were completed. RESULTS: A 20% response rate (N = 191) was achieved. Most respondents (78%) entered nursing as associate degree/diploma graduates, and most (84%) either had a baccalaureate or master's degree or were currently enrolled in school. Encouragement from other nurses was the factor most frequently selected as facilitating return to school. Impeding factors included age and family responsibilities. A minority of nurses reported that they did not believe that a baccalaureate would make them a better nurse. IMPLICATIONS: Findings suggest that peer and leadership support play a larger role in facilitating baccalaureate completion more than previously reported. Additional research is needed to explore the role of registered nurse to registered nurse encouragement in facilitating educational advancement.

The role of emotion in learning trustworthiness from eye-gaze: Evidence from facial electromyography.

Gaze direction can be used to rapidly and reflexively lead or mislead others' attention as to the location of important stimuli. When perception of gaze direction is congruent with the location of a target, responses are faster compared to when incongruent. Faces that consistently gaze congruently are also judged more trustworthy than faces that consistently gaze incongruently. However, it's unclear how gaze-cues elicit changes in trust. We measured facial electromyography (EMG) during an identity-contingent gaze-cueing task to examine whether embodied emotional reactions to gaze-cues mediate trust learning. Gaze-cueing effects were found to be equivalent regardless of whether participants showed learning of trust in the expected direction or did not. In contrast, we found distinctly different patterns of EMG activity in these two populations. In a further experiment we showed the learning effects were specific to viewing faces, as no changes in liking were detected when viewing arrows that evoked similar attentional orienting responses. These findings implicate embodied emotion in learning trust from identity-contingent gaze-cueing, possibly due to the social value of shared attention or deception rather than domain-general attentional orienting.

Lack of inhibition in Parkinson's disease: evidence from a lexical decision task.

Persons affected by Parkinson's disease (PD) often show an increased semantic priming effect from target words in lexical decision tasks (hyper-priming) as compared to age-matched controls. In this study, a lexical decision task was used to investigate both semantic priming (Experiment 1) and repetition priming (Experiment 2) from distractor words in PD patients and age-matched controls. With this negative priming procedure, target words in successive trials are never related, and therefore participants always have to switch between unrelated target words. Instead, it is the distractor prime word that is either related or unrelated to the subsequent target, giving the measure of priming. Results showed that PD patients demonstrated a robust effect of positive semantic priming from distractor words. Participants from the control group did not show any semantic priming effect (positive or negative) from distractors. Similarly, PD patients showed positive repetition priming from distractor words, but the control group showed significant repetition negative priming. These results support the view that the hyper-priming effect typically shown by persons with Parkinson's disease is the result of impaired inhibitory processes required to control word activation during reading.

C-reactive protein, metabolic syndrome, and insulin resistance in individuals with spinal cord injury.

BACKGROUND/OBJECTIVE: High-sensitivity C-reactive protein (hsCRP) has been shown to be indicative of elevated risk of cardiovascular disease (CVD). We examined this blood marker in persons with spinal cord injury (SCI) in order to determine its potential for predicting elevated cardiac risk. METHODS: In a cross-sectional analysis, we examined the relationship between hsCRP and insulin resistance and metabolic syndrome among 93 individuals with SCI (50.2 +/- 13 years). Fasting lipids, insulin, glucose, plasma hsCRP, and anthropometric data were gathered from each subject. Comparisons were made with population reference values. RESULTS: Metabolic syndrome and insulin resistance were present in nearly one quarter of the SCI population (22.6%). Subjects with fasting insulin resistance had significantly higher mean hsCRP (4.29 +/- 3.25 mg/L) than those who were not insulin resistant (2.24 +/- 2.02) (P < 0.05). Moreover, hsCRP was significantly elevated in individuals who presented with high cardiovascular risk including severe dyslipidemia (> or = 4 abnormal lipid values) and Framingham Risk scores < or = 6 (P < 0.05 for both values). In addition, the homeostasis model assessment of insulin resistance was mildly correlated with hsCRP (r = 0.33). CONCLUSIONS: In individuals with SCI who are insulin resistant and/or display components of the metabolic syndrome, hsCRP is elevated suggesting a clinically important association with cardiovascular risk in this population.

Facial Mimicry and Emotion Consistency: Influences of Memory and Context.

This study investigates whether mimicry of facial emotions is a stable response or can instead be modulated and influenced by memory of the context in which the emotion was initially observed, and therefore the meaning of the expression. The study manipulated emotion consistency implicitly, where a face expressing smiles or frowns was irrelevant and to be ignored while participants categorised target scenes. Some face identities always expressed emotions consistent with the scene (e.g., smiling with a positive scene), whilst others were always inconsistent (e.g., frowning with a positive scene). During this implicit learning of face identity and emotion consistency there was evidence for encoding of face-scene emotion consistency, with slower RTs, a reduction in trust, and inhibited facial EMG for faces expressing incompatible emotions. However, in a later task where the faces were subsequently viewed expressing emotions with no additional context, there was no evidence for retrieval of prior emotion consistency, as mimicry of emotion was similar for consistent and inconsistent individuals. We conclude that facial mimicry can be influenced by current emotion context, but there is little evidence of learning, as subsequent mimicry of emotionally consistent and inconsistent faces is similar.

Analysis and evaluation of the rationales for single-sex schooling.

Amendments passed as part of the No Child Left Behind Act in 2006 made some forms of single-sex (SS) public education legal in the United States. Proponents offer a host of arguments in favor of such schooling. This chapter identifies and evaluates five broad rationales for SS schooling. We conclude that empirical evidence fails to support proponents' claims but nonetheless suggests ways in which to improve coeducation. Specifically, we (a) show that the purported benefits of SS schooling arise from factors confounded with, but not causally linked to, single-sex composition; (b) challenge claims that biological sex is an effective marker of differences relevant to instruction; (c) argue that sexism on the part of teachers and peers persists in SS contexts; and (d) critique the notion that gender per se "disappears" in SS contexts. We also address societal implications of the use of sex-segregated education and conclude that factors found to be beneficial for students should be implemented within coeducational schools.

Identifying barriers associated with enrollment of patients with lung cancer into clinical trials.

BACKGROUND: Enrollment of patients with lung cancer into clinical trials is required to accelerate the pace of new therapy development and contribute to a better understanding of the biological characteristics of cancer. METHODS: We conducted a retrospective chart review of all patients seen by the thoracic medical oncology team at the Vanderbilt Ingram Cancer Center (VICC) from November 2005 to November 2008 to determine the barriers associated with patient enrollment in to clinical trials. RESULTS: One thousand forty-three patient charts were audited: 32% of patients were eligible for enrollment, and 14% enrolled in a study. There were no significant differences in protocol availability or eligibility by sex, smoking status, or age. Patients living further from the cancer center were significantly less likely to have a study protocol available (P = .009), but if a protocol was available they were more likely to be eligible for enrollment (P < .001). Significantly more protocols were available for patients with non-small-cell lung cancer (NSCLC) compared with those who had small-cell lung cancer (SCLC) (63% vs. 48%; P < .001). Patients with advanced disease were more likely to have a protocol available (P < .001) and enter a study (P = .031). The most common reasons for patients not being eligible for enrollment were poor performance status (32%) and presence of comorbid disease (27%). The most common reasons for potentially eligible patients not enrolling in a study included preference for treatment closer to home (49%) and patient refusal (43%). CONCLUSION: Additional strategies are required to increase accrual of patients into lung cancer trials, including development of protocols for early-stage disease and modifying eligibility and performance status criteria for this unique patient population.

The influence of response grouping on free-choice decision making in a response selection task.

Previous research has demonstrated an advantage for the preparation of fingers on one hand over the preparation of fingers on two hands, and for the preparation of homologous fingers over that of non-homologous fingers. In the present study, we extended the precuing effects observed with finger responses to response selection under free-choice conditions. Participants were required to choose from a range of possible responses following the presentation of a precue that indicated which response to prepare (go-to precue) or prevent (no-go-to precue). In Experiment 1 the choice was between homologous and non-homologous finger responses on the hand opposite to the precue while in Experiment 2 the choice was between finger responses on the same or different hand to the precue. In the go-to precue condition, the frequency of homologous finger choices was more frequent than non-homologous finger responses. Similarly, participants chose finger responses on the same hand as the precue regardless of whether they were instructed to prepare or prevent the precued response. The hand effect bias was stronger than the finger effect bias. These findings are consistent with the Grouping Model (Adam, Hommel, & Umilta, 2003).

Self produced and observed actions influence emotion: the roles of action fluency and eye gaze.

Affective responses to objects can be influenced by cognitive processes such as perceptual fluency. Here we investigated whether the quality of motor interaction with an object influences affective response to the object. Participants grasped and moved objects using either a fluent action or a non-fluent action (avoiding an obstacle). Liking ratings were higher for objects in the fluent condition. Two further studies investigated whether the fluency of another person's actions influences affective response. Observers watched movie clips of the motor actions described above, in conditions where the observed actor could be seen to be looking towards the grasped object, or where the actor's head and gaze were not visible. Two results were observed: First, when the actor's gaze cannot be seen, liking ratings of the objects are reduced. Second, action fluency of observed actions does influence liking ratings, but only when the actor's gaze towards the object is visible. These findings provide supporting evidence for the important role of observed eye gaze in action simulation, and demonstrate that non-emotive actions can evoke empathic states in observers.