Constant Sub-second Cycling between Representations of Possible Futures in the Hippocampus.

Cognitive faculties such as imagination, planning, and decision-making entail the ability to represent hypothetical experience. Crucially, animal behavior in natural settings implies that the brain can represent hypothetical future experience not only quickly but also constantly over time, as external events continually unfold. To determine how this is possible, we recorded neural activity in the hippocampus of rats navigating a maze with multiple spatial paths. We found neural activity encoding two possible future scenarios (two upcoming maze paths) in constant alternation at 8 Hz: one scenario per ∼125-ms cycle. Further, we found that the underlying dynamics of cycling (both inter- and intra-cycle dynamics) generalized across qualitatively different representational correlates (location and direction). Notably, cycling occurred across moving behaviors, including during running. These findings identify a general dynamic process capable of quickly and continually representing hypothetical experience, including that of multiple possible futures.

Collaborative imagination synchronizes representations of the future and fosters social connection in the present.

From close friends to people on a first date, imagining a shared future appears fundamental to relationships. Yet, no previous research has conceptualized the act of imagination as a socially constructed process that affects how connected we feel to others. The present studies provide a framework for investigating imagination as a collaborative process in which individuals cocreate shared representations of hypothetical events-what we call collaborative imagination. Across two preregistered studies (N = 244), we provide evidence that collaborative imagination of a shared future fosters social connection in novel dyads-beyond imagining a shared future individually or shared experience in general. Subjective ratings and natural language processing of participants' imagined narratives illuminate the representational features of imagined events shaped by collaborative imagination. Together, the present findings have the potential to shift how we view the structure and function of imagination with implications for better understanding interpersonal relationships and collective cognition.

Narratives imagined in response to instrumental music reveal culture-bounded intersubjectivity.

The scientific literature sometimes considers music an abstract stimulus, devoid of explicit meaning, and at other times considers it a universal language. Here, individuals in three geographically distinct locations spanning two cultures performed a highly unconstrained task: they provided free-response descriptions of stories they imagined while listening to instrumental music. Tools from natural language processing revealed that listeners provide highly similar stories to the same musical excerpts when they share an underlying culture, but when they do not, the generated stories show limited overlap. These results paint a more complex picture of music's power: music can generate remarkably similar stories in listeners' minds, but the degree to which these imagined narratives are shared depends on the degree to which culture is shared across listeners. Thus, music is neither an abstract stimulus nor a universal language but has semantic affordances shaped by culture, requiring more sustained attention from psychology.

Quantifying the narrative flow of imagined versus autobiographical stories.

Lifelong experiences and learned knowledge lead to shared expectations about how common situations tend to unfold. Such knowledge of narrative event flow enables people to weave together a story. However, comparable computational tools to evaluate the flow of events in narratives are limited. We quantify the differences between autobiographical and imagined stories by introducing sequentiality, a measure of narrative flow of events, drawing probabilistic inferences from a cutting-edge large language model (GPT-3). Sequentiality captures the flow of a narrative by comparing the probability of a sentence with and without its preceding story context. We applied our measure to study thousands of diary-like stories, collected from crowdworkers, about either a recent remembered experience or an imagined story on the same topic. The results show that imagined stories have higher sequentiality than autobiographical stories and that the sequentiality of autobiographical stories increases when the memories are retold several months later. In pursuit of deeper understandings of how sequentiality measures the flow of narratives, we explore proportions of major and minor events in story sentences, as annotated by crowdworkers. We find that lower sequentiality is associated with higher proportions of major events. The methods and results highlight opportunities to use cutting-edge computational analyses, such as sequentiality, on large corpora of matched imagined and autobiographical stories to investigate the influences of memory and reasoning on language generation processes.

A neural signature of the vividness of prospective thought is modulated by temporal proximity during intertemporal decision making.

Why do people discount future rewards? Multiple theories in psychology argue that one reason is that future events are imagined less vividly than immediate events, thereby diminishing their perceived value. Here we provide neuroscientific evidence for this proposal. First, we construct a neural signature of the vividness of prospective thought, using an fMRI dataset where the vividness of imagined future events is orthogonal to their valence by design. Then, we apply this neural signature in two additional fMRI datasets, each using a different delay-discounting task, to show that neural measures of vividness decline as rewards are delayed farther into the future.

Scene construction in healthy aging - Exploring the interplay between task complexity and oculomotor behaviour.

Mounting evidence indicates a close correspondence between episodic memory, mental imagery, and oculomotor behaviour. It remains unclear, however, how oculomotor variables support endogenously driven forms of mental imagery and how this relationship changes across the adult lifespan. In this study we investigated age-related changes in oculomotor signatures during scene construction and explored how task complexity impacts these processes. Younger and cognitively healthy older participants completed a guided scene construction paradigm where scene complexity was manipulated according to the number of elements to be sequentially integrated. We recorded participants' eye movements and collected subjective ratings regarding their phenomenological experience. Overall, older adults rated their constructions as more vivid and more spatially integrated, while also generating more fixations and saccades relative to the younger group, specifically on control trials. Analyses of participants' total scan paths revealed that, in the early stages of scene construction, oculomotor behaviour changed as a function of task complexity within each group. Following the introduction of a second stimulus, older but not younger adults showed a significant decrease in the production of eye movements. Whether this shift in oculomotor behaviour serves a compensatory function to bolster task performance represents an important question for future research.

Imagining is not seeing: lower insight-driven memory reconfiguration when imagining the link between separate events.

Gaining insight into the relationship between previously separate events allows us to combine these events into coherent episodes. This insight may occur via observation or imagination. Although much of our reasoning occurs in the absence of direct sensory stimuli, how mnemonic integration is accomplished via imagination has remained completely unknown. Here, we combined fMRI with representational similarity analysis and a real-life-like narrative-insight task (NIT) to elucidate the behavioral and neural effects of insight through imagination (vs. observation). Healthy participants performed the NIT in the MRI scanner and underwent memory testing one week later. Crucially, participants in the observation group gained insight through a video, while participants in the imagination group gained insight through an imagination instruction. Although we show that insight via imagination was weaker than insight via direct observation, the imagination group showed better detail memory. Moreover, the imagination group showed no representational change in the anterior hippocampus or increases in frontal and striatal activity for the linked events, as was the case in the observation group. However, the hippocampus and striatum were more activated during linking via imagination, which might indicate that their increased recruitment during imagination impedes concurrent mnemonic integration but may facilitate long-term memory.

The touch in action: exploring sensorimotor interactions with motor imagery.

The current research investigates the role of tactile information and its associated neural substrates in controlling the action. We employ a combination of motor and sensory components by asking participants to imagine exerting force with the index finger while either touching or not touching a surface. Assuming action imagination and action performance present similar patterns of activation along the motor system, we applied single-pulse transcranial magnetic stimulation over the primary motor cortex (M1) during action imagination. We observed increased amplitude of motor-evoked potentials (MEPs) of the relevant muscle when imagined actions were performed concurrently with tactile stimulation, suggesting a facilitatory effect of touch on the motor system. The motor system activity was scaled-based on the different amounts of force required, and crucially, this effect was specific to the body part involved in the action imagined. An intriguing positive correlation was observed between participants' ratings of their imagery level of vividness and the activation of the motor system, indicating that those participants exhibiting MEPs scaled correctly also had strong visualization abilities, as reflected by their capacity to accurately distinguish between varying levels of force.

Effect of Graded Motor Imagery Combined With Repetitive Transcranial Magnetic Stimulation on Upper Extremity Motor Function in Stroke Patients: A Randomized Controlled Trial.

OBJECTIVE: To investigate the efficacy of graded motor imagery therapy (GMI) and repetitive transcranial magnetic stimulation (rTMS) on upper extremity function alone and in combination in patients with stroke. DESIGN: This was a prospective randomized controlled trial. SETTING: A rehabilitation hospital. PARTICIPANTS: Participants (N=56) were randomized into GMI (n=19), rTMS (n=18), or combined groups (n=19). INTERVENTIONS: There were 2 interventions: (1) 20 minutes of 1 Hz rTMS. (2) 30 minutes of GMI. In addition to this, all participants receive conventional rehabilitation including 120 minutes of physical therapy and occupational therapy daily. All treatments were administered once a day, 5 days a week, for 4 weeks. The Fugl-Meyer assessment of upper extremity (FMA-UE), Action Research Arm Test (ARAT), modified Barthel Index (MBI), motor activity log (MAL), and motor evoked potential (MEP) were assessed in a blinded manner at baseline and 4 weeks after treatment, respectively. MAIN OUTCOME MEASURES: The primary endpoint was the improvement from baseline in FMA-UE for stroke patients at 4 weeks. RESULTS: After 4 weeks of treatment, the FMA-UE scores in the GMI, rTMS, and combined groups were higher than those at baseline assessment, with statistically significant differences among the 3 groups (P=.009). The efficacy of the combined group was significantly better than that of the GMI and rTMS groups (P=.015, P=.043, respectively). In the motor activity log-amount of use (MAL-AOU) score, the efficacy of the combined group was better than that of the rTMS group (P=.035). CONCLUSIONS: Both GMI and rTMS were effective in improving upper extremity function in patients with stroke, but the combination of the 2 techniques was more effective. However, GMI was better than rTMS in improving the interest of stroke patients in active training.

Imagining the future improves saving in preschoolers.

Preschoolers are notoriously poor at delaying gratification and saving limited resources, yet evidence-based methods of improving these behaviors are lacking. Using the marble game saving paradigm, we examined whether young children's saving behavior would increase as a result of engaging in future-oriented imagination using a storyboard. Participants were 115 typically developing 4-year-olds from a midwestern U.S. metropolitan area (Mage = 53.48 months, SD = 4.14, range = 47-60; 54.8% female; 84.5% White; 7.3% Hispanic/Latino ethnicity; median annual household income = $150,000-$174,999). Children were randomly assigned to one of four storyboard conditions prior to the marble game: Positive Future Simulation, Negative Future Simulation, Positive Routine, or Negative Routine. In each condition, children were asked to imagine how they would feel in the future situation using a smiley face rating scale. Results showed that children were significantly more likely to save (and to save more marbles) in the experimental conditions compared with the control conditions (medium effect sizes). Moreover, imagining saving for the future (and how good that would feel) was more effective at increasing saving behaviors than imagining not saving (and how bad that would feel). Emotion ratings were consistent with the assigned condition, but positive emotion alone did not account for these effects. Results held after accounting for game order and verbal IQ. Implications of temporal psychological distancing and emotion anticipation for children's future-oriented decision making are discussed.

What affords being creative? Opportunities for novelty in light of perception, embodied activity, and imaginative skill.

An affordance perspective highlights how resourceful the ecology is for creative actions of all sorts; it captures how creativity is grounded in materiality. In contrast to "canonical affordances" (i.e., "ready-to-hand," mundane instances), creative affordances point to unconventional or surprising action opportunities that are nonetheless valued. Our initial aim is to discuss how to frame the affordance concept to make it attractive for the study of creativity. We propose a dialectic position that reconciles aspects of the realism of ecological psychology with the constructivist view more typical of creativity scholars. We stress that novel options frequently depend on constructive actions; novelty cannot always simply be "found" or just waits to be used. Many creative opportunities only emerge from how person actively engages with the ecology. Our second aim is to explore specific ways that creativity is mediated through affordances, based on illustrations from crafts and dance. These suggest that affordances span various timescales and mediate in multiple ways, from noticing existing potentials, via active affordance shaping, to background activities that indirectly invite or enable novelty. In conclusion we discuss how a person's creative "vision," imagination and combinatoric ability, all fundamental creativity mechanisms, relate to affordances and how fruitful creative directions may be perceptually hinted at.

Self-guided imagery rescripting for worry images: A preliminary experimental investigation.

BACKGROUND: Mental images of feared events are overactive and intrusive in generalized anxiety disorder (GAD). Imagery rescripting involves integration of positive or neutral imagery and corrective information into images to facilitate emotional processing, reduce imagery intrusions, and re-structure underlying schema. Yet only one known study has applied the technique to treatment of worry. The present study aimed first to examine the relationship between trait worry and properties of future-oriented worry images, and second to examine the efficacy of a self-guided imagery rescripting intervention in improving individuals' response to their worries. METHODS: Participants recruited through Amazon Mechanical Turk (N = 365) identified their major worry and wrote the script of a worst-case scenario mental image. Participants were randomized to three conditions: re-writing the same worry image script (exposure), or writing scripts of either one or three positive alternative future-oriented images (rescripting conditions). RESULTS: In preliminary analyses, trait worry negatively predicted participants' ratings of worry images, including valence and ability to cope, and positively predicted distress, anticipated cost, and belief in their negative meaning. In experimental analyses, linear mixed-effects models revealed anxious response and cognitive appraisal of the threat were significantly lower among participants allocated to rescripting relative to exposure. There was no effect of rescripting type. CONCLUSIONS: This investigation demonstrated the impact of a future-oriented imagery rescripting task on anxiety and cognitive biases associated with real worries in an unselected sample. Results may contribute to the development of imagery rescripting interventions for GAD.

Recontextualization and Imagination: The Public Health Professional and the U.S. Health Care System.

Based on a qualitative study, this paper explores how United States public health professionals view and think about the existing U.S. healthcare system, while also allowing these study participants to imagine new ways of structuring and practicing public health. Using semi-structured qualitative interviews, I show how public health professionals engage with the concept of "the social" and their personal experiences with public health to question the status quo. By giving public health professionals space in which to imagine changes and different ways of practicing public health, I demonstrate the effectiveness of imagination as a capacity that public health professionals possess to take the lead in creating the changes they hope for.

Another nursing is possible: Ethics, political economies, and possibility in an uncertain world.

Overtaxed by the realities laid bare in the pandemic, nursing has imminent decisions to make. The exigencies of pandemic times overextend a health care infrastructure already groaning under the weight of inequitable distribution of resources and care commodified for profit. We can choose to prioritise different values. Invoking philosopher of science Isbelle Stengers's manifesto for slow science, this is not the only nursing that is possible. With this paper, I pick up threads of nursing's historical ontology, drawing previous scholarship on the historical narratives nurses use to understand themselves. Peeling back nursing's myth to alternate points of origin allows me to consider alternate lines of flight, a speculative adventure in paths not taken but paths that exist nonetheless. I go on to examine what a collective ethic of nursing could be, when we make space for these alternate histories, considering the confluences and conflicts that enable nurses to care and those that inhibit them from doing so. The imperative for this lies in the central importance of the reproductive labour of nursing health care, which leads me to a critique of nursing's capitulation to the pressures of late stage capitalism. This is a problem with ethical and ontological implications both for nursing, and also for those who require nursing care, an imperative to think about the kinds of present/futures for health, care, and health care we might cocreate in collaboration and solidarity with the communities in which nurses are imbricated, shedding the trappings of neoliberalism. There is significant power in the vision and praxis of 28 million nurses and midwives worldwide. Our ethics can guide our imagination which can in turn create possibility. This kind of endeavour-that of dreams and imagination-leads us to what could be, if only we leap.

Promoting moral imagination in nursing education: Imagining and performing.

Moral imagination is a central component of moral agency and person-centred care. Becoming moral agents who can sustain attention on patients and their families through their illness and suffering involves imagining the other, what moral possibilities are available, what choices to make, and how one wants to be. This relationship between moral agency, moral imagination, and personhood can be effaced by a focus on task-driven technical rationality within the multifaceted challenges of contemporary healthcare. Similarly, facilitating students' moral agency can also be obscured by the task-driven technical rationality of teaching. The development of moral agency requires deliberate attention across the trajectory of nursing education. To prepare nursing students for one practice challenge, workplace violence, we developed a multimodal education intervention which included a simulated learning experience (SLE). To enhance the realism and consistency of the educational experience, 11 nursing students were trained as simulated participants (SP). As part of a larger study to examine knowledge acquisition and practice confidence of learners who completed the SLE, we explored the experience of being the SP through interviews and a focus group with the SP students. The SP described how their multiple performances contributed to imagining the situation 'on both sides' prompting empathy, a reconsideration of their moral agency, and the potential to prevent violence in the workplace beyond technical rational techniques, such as verbal de-escalation scripts. The empirical findings from the SP prompted a philosophical exploration into moral imagination. We summarise the multimodal educational intervention and relevant findings, and then, using Johnson's conception of moral imagination and relevant nursing literature, we discuss the significance of the SP embodied experiences and their professional formation. We suggest that SLEs offer a unique avenue to create pedagogical spaces which promote moral imagination, thereby teaching for moral agency and person-centred care.

[Imagination supported by brief therapies]. / L'imagination soutenue par les thérapies brèves.

While we dream during sleep, our psyche gives free rein to its imagination during waking phases. During nursing interviews, should the patient be allowed to mobilize this imaginative capacity? One answer may come from the Palo Alto school of thought, which uses the imagination in a relational space, so that it becomes an active element in psychic change. In the practice of mental health nursing, it is possible to mobilize this imaginative part, supported by brief therapies, and turn it into a therapeutic path.

Hypnagogic states are quite common: Self-reported prevalence, modalities, and gender differences.

The hypnagogic state refers to the transitional phase between wakefulness and sleep during which vivid experiences occur. In this questionnaire study, we assessed the self-reported prevalence of hypnagogic states considering the frequency of experiences in different modalities. We also assessed the emotional quality and the vividness of the experiences. Moreover, we compared hypnagogic states to other phenomena, such as dreams, sleep paralysis, imagination, and extra-sensory perception in these measures. Hypnagogic states were reported by 80.2 % of 4456 participants and were more prevalent in women than men. Experiences were most often kinaesthetic and visual, and less often auditory, tactile, and olfactory or gustatory. Hypnagogic states were less prevalent than dreams and characterized by different modality profiles. However, they were similar to dreams in their emotional quality, the irritation they caused, and in their vividness. In conclusion, hypnagogic states are quite common.

Commonalities between the Berger Rhythm and spectra differences driven by cross-modal attention and imagination.

When people close their eyes, the power of alpha-band oscillatory brain activity increases. We explored the possibility that this could be related to a suppression of visual processing, rather than being a default dynamic of the visual brain. We recorded brain activity while people meditated with their eyes open or closed, and when people attended to or imagined having auditory or visual experiences. We could decode the attended or imagined modality of experiences based on the spectra of brain activity that prevailed while meditating with open or closed eyes. We also found anecdotal evidence suggesting the strength of imagined sensory experiences may be predicted by the dynamics of neural networks that are responsive to inputs. Overall, our data suggest spectra changes when people close their eyes might relate to a targeted suppression of visual processing, as opposed to being a default state of idle visual brains.

Does ASMR propensity reflect a mentally flexible mindset? Exploring the relationship between ASMR propensity, transliminality, emotional contagion, schizotypal traits, roleplaying ability, and creativity.

Autonomous Sensory Meridian Response (ASMR) is an alternative state of consciousness characterised by changes in affect, feelings of relaxation, and tingling sensations on the body. Online videos designed to stimulate ASMR in viewers have become increasingly popular. Although there is evidence that ASMR may improve sleep, emotion regulation, and relaxation, the current understanding of ASMR propensity remains limited. This study examined whether a mentally flexible cognitive style may underlie the ability to experience ASMR. Undergraduate students (N = 376) completed an online survey involving a series of self-report questionnaires and two performance-based creative ability tasks. Findings did not provide support for an overall mentally flexible mindset, however, transliminality, emotional contagion susceptibility, positive schizotypal traits, and roleplaying ability all significantly positively predicted ASMR propensity. These findings suggest that ASMR propensity represents several possible underlying cognitive styles relating to enhanced imagination and perceptual ability, and cannot be simply characterised by mental flexibility.

How Imagination and Memory Shape the Moral Mind.

Interdisciplinary research has proposed a multifaceted view of human cognition and morality, establishing that inputs from multiple cognitive and affective processes guide moral decisions. However, extant work on moral cognition has largely overlooked the contributions of episodic representation. The ability to remember or imagine a specific moment in time plays a broadly influential role in cognition and behavior. Yet, existing research has only begun exploring the influence of episodic representation on moral cognition. Here, we evaluate the theoretical connections between episodic representation and moral cognition, review emerging empirical work revealing how episodic representation affects moral decision-making, and conclude by highlighting gaps in the literature and open questions. We argue that a comprehensive model of moral cognition will require including the episodic memory system, further delineating its direct influence on moral thought, and better understanding its interactions with other mental processes to fundamentally shape our sense of right and wrong.