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At least 163 records · Page 9Linked to original sources
PubMed2005

Gut feelings, intuition, and emotions: an exploratory study.

OBJECTIVE: Investigate whether the gut feelings of one person, as measured with an electrogastrogram (EGG), respond to the emotions of a distant person. DESIGN: In a double blind protocol, EGG activity was recorded in an individual relaxing in a heavily shielded chamber while, at a distance, a second person periodically viewed the live video image of the first person along with stimuli designed to evoke positive, negative, calming, or neutral emotions. SUBJECTS: Twenty-six (26) pairs of healthy adult volunteers. OUTCOME MEASURES: EGG maximum values recorded while the distant person was exposed to emotional stimuli were compared to similar values recorded during exposure to neutral stimuli. RESULTS: EGG maximums were significantly larger on average when the distant person was experiencing positive (p = 0.006) and negative (p = 0.0009) emotions, as compared to neutral emotions. Nonparametric bootstrap procedures were employed to evaluate these differences, and the results survive correction for multiple analyses. CONCLUSIONS: EGG activity increases in response to the emotions of a distant person, beyond the influence of ordinary sensory interactions. Relationships commonly reported between gut feelings and intuitive hunches may share a common, poorly understood, perceptive origin.

Adult↗
PubMed2004

Are children "intuitive theists"? Reasoning about purpose and design in nature.

Separate bodies of research suggest that young children have a broad tendency to reason about natural phenomena in terms of purpose and an orientation toward intention-based accounts of the origins of natural entities. This article explores these results further by drawing together recent findings from various areas of cognitive developmental research to address the following question: Rather than being "artificialists" in Piagetian terms, are children "intuitive theists"-disposed to view natural phenomena as resulting from nonhuman design? A review of research on children's concepts of agency, imaginary companions, and understanding of artifacts suggests that by the time children are around 5 years of age, this description of them may have explanatory value and practical relevance.

Child↗
PubMed2004

COPD-intuition or template: nurses' stories of acute exacerbations of chronic obstructive pulmonary disease.

UNLABELLED: STUDY RATIONAL: A number of nurse-researchers have examined the experience of dyspnoea reduction during non-acute phases of the chronic obstructive pulmonary disease (COPD). However, nurses working on in-patient hospital units are frequently required to care for individuals suffering from acute exacerbations of their disease (AECOPD). These critically ill individuals present at health care institutions incapacitated by severe shortness of breath/dyspnoea that is frequently refractory to treatment. To date, little is known about the nurses' understanding of the care they provide for individuals hospitalized because of these acute episodes of their chronic illness. STUDY OBJECTIVES: The research project was undertaken, in part, to develop an understanding of nurses' experience of caregiving for individuals hospitalized for in-patient care during an AECOPD. METHODOLOGICAL DESIGN: This focused ethnographic narrative examined the caregiving stories of 10 nurse caregivers. The 10 nurse caregivers were interviewed while caring for a patient and their family during an experience of an AECOPD characterized by incapacitating breathlessness. RESULTS: The nurse caregivers told a number of caregiving stories that illustrated a common care template that appears to be based on intuition or pattern recognition focusing on anxiety sometimes to the exclusion of dyspnoea. CONCLUSIONS: Analysis of these stories emphasized the need to facilitate nurses individualization of standard templates. More importantly, this analysis illustrated the critical need to develop strategies to facilitate the reshaping of inaccurate templates in the presence of new knowledge.

Acute Disease↗
PubMed2006

When memory fails, intuition reigns: midazolam enhances implicit inference in humans.

People often make logically sound decisions using explicit reasoning strategies, but sometimes it pays to rely on more implicit "gut-level" intuition. The transitive inference paradigm has been widely used as a test of explicit logical reasoning in animals and humans, but it can also be solved in a more implicit manner. Some researchers have argued that the hippocampus supports relational memories required for making logical inferences. Here we show that the benzodiazepene midazolam, which inactivates the hippocampus, causes profound explicit memory deficits in healthy participants, but enhances their ability in making implicit transitive inferences. These results are consistent with neurocomputational models of the basal ganglia-dopamine system that learn to make decisions through positive and negative reinforcement. We suggest that disengaging the hippocampal explicit memory system can be advantageous for this more implicit form of learning.

Adolescent↗
PubMed2006

The role of conscious reasoning and intuition in moral judgment: testing three principles of harm.

Is moral judgment accomplished by intuition or conscious reasoning? An answer demands a detailed account of the moral principles in question. We investigated three principles that guide moral judgments: (a) Harm caused by action is worse than harm caused by omission, (b) harm intended as the means to a goal is worse than harm foreseen as the side effect of a goal, and (c) harm involving physical contact with the victim is worse than harm involving no physical contact. Asking whether these principles are invoked to explain moral judgments, we found that subjects generally appealed to the first and third principles in their justifications, but not to the second. This finding has significance for methods and theories of moral psychology: The moral principles used in judgment must be directly compared with those articulated in justification, and doing so shows that some moral principles are available to conscious reasoning whereas others are not.

Adult↗
PubMed1996

The Jungian psychological functions Sensing and Intuition and the preference for art.

The study investigated the relationship between the Jungian psychological functions Sensing (S) and Intuition (N) and preference for art. It was hypothesized that S-persons would prefer realistic and representational art, where N-persons would like abstract art. The Myers-Briggs Type Indicator was administered to 179 subjects to assess the preference for either the S- or N-function. Subjects indicated how much they liked 20 painted portraits. The hypothesis was partly confirmed. Not only S-subjects (n = 100) but also N-subjects (n = 79) prefer realistic paintings over abstract ones. On the whole, abstract paintings are valued less than realistic paintings, but N-subjects like abstract paintings more than S-subjects.

Adolescent↗
PubMed1998

Impact of intuitive theories on feature recruitment throughout the continuum of expertise.

Expertise in object domains involves both the perceptual learning of the differentiating and higher order features that are indicative of concepts and the elaboration of intuitive theories. Triad-similarity judgments, feature-salience ratings, and verbal protocols were used to investigate the effects of theories on the recruitment of features across different categorization contexts, as well as the degree to which expert categorization skills transferred to less familiar domains. Whereas novices considered features that indicated overall similarity to be more perceptually salient than were modified parts that indicated taxonomic relations, experts found them equally salient. Experts' theories were instrumental in directing feature recruitment in contexts involving identification, image generation, and similarity decisions. Experts' theories also supported the transfer of categorization skills to related, less familiar domains. The relation of mutual dependence between perceptual learning and theory development throughout the continuum of expertise is considered.

Adult↗
PubMedDate not supplied

Intuition: the new-era trump card.

Welcome to the new era--one largely defined by rapid change and unprecedented access to information. If you are worried about keeping up, you are not alone. But take heart, many corporations are rapidly adapting to this chaotic new environment by using one of the oldest, most powerful tools in our history--intuition.

Administrative Personnel↗
PubMed2000

Classifying clinical decision making: interpreting nursing intuition, heuristics and medical diagnosis.

This is the second of two linked papers exploring decision making in nursing. The first paper, 'Classifying clinical decision making: a unifying approach' investigated difficulties with applying a range of decision-making theories to nursing practice. This is due to the diversity of terminology and theoretical concepts used, which militate against nurses being able to compare the outcomes of decisions analysed within different frameworks. It is therefore problematic for nurses to assess how good their decisions are, and where improvements can be made. However, despite the range of nomenclature, it was argued that there are underlying similarities between all theories of decision processes and that these should be exposed through integration within a single explanatory framework. A proposed solution was to use a general model of psychological classification to clarify and compare terms, concepts and processes identified across the different theories. The unifying framework of classification was described and this paper operationalizes it to demonstrate how different approaches to clinical decision making can be re-interpreted as classification behaviour. Particular attention is focused on classification in nursing, and on re-evaluating heuristic reasoning, which has been particularly prone to theoretical and terminological confusion. Demonstrating similarities in how different disciplines make decisions should promote improved multidisciplinary collaboration and a weakening of clinical elitism, thereby enhancing organizational effectiveness in health care and nurses' professional status. This is particularly important as nurses' roles continue to expand to embrace elements of managerial, medical and therapeutic work. Analysing nurses' decisions as classification behaviour will also enhance clinical effectiveness, and assist in making nurses' expertise more visible. In addition, the classification framework explodes the myth that intuition, traditionally associated with nurses' decision making, is less rational and scientific than other approaches.

Cooperative Behavior↗
PubMed1997

[Diagnostic process in internal medicine: decision analysis or intuition?].

The diagnostic process is a hypothesis-testing approach under conditions of uncertainty. Experience-based intuition plays an important role in complex clinical situations. Serious cognitive errors may be avoidable if possible heuristic problems are considered. Probabilistic reasoning according to Bayes' theorem, especially for determination of pretest probability, is crucial for coping with uncertainty and the myriad available diagnostic tests and procedures. Their proper interpretation depends on fundamental test variables such as sensitivity, specificity and likelihood ratio. Computers and neural networks cannot replace cognitive reasoning and probabilistic strategies in daily clinical practice. Decision analysis is pivotal, particularly when the aim is to maintain high-quality medical care at a time of limited resources.

Decision Making, Computer-Assisted↗
PubMedDate not supplied

Gaussian pulse decomposition: an intuitive model of electrocardiogram waveforms.

This study presents a novel approach to modeling the electrocardiogram (ECG): the Gaussian pulse decomposition. Constituent waves of the ECG are decomposed into and represented by Gaussian pulses using an iterative algorithm: the chip away decomposition (ChAD) algorithm. At each iteration, a nonlinear minimization method is used to fit a portion of the ECG waveform with a single Gaussian pulse, which is then subtracted from the ECG waveform. The process iterates on the resulting residual waveform until the normalized mean square error is below an acceptable level. Three different minimization methods were compared for their applicability to the ChAD algorithm; the Nelder-Mead simplex method was found to be more noise-tolerant than the Newton-Raphson method or the steepest descent method. Using morphologically different ECG waveforms from the MIT-BIH arrhythmia database, it was demonstrated that the ChAD algorithm is capable of modeling not only normal beats, but also abnormal beats, including those exhibiting a depressed ST segment, bundle branch block, and premature ventricular contraction. An analytical expression for the spectral contributions of the constituent waves was also derived to characterize the ECG waveform in the frequency domain. The Gaussian pulse model, providing an intuitive representation of the ECG constituent waves by use of a small set of meaningful parameters, should be useful for various purposes of ECG signal processing, including signal representation and pattern recognition.

Algorithms↗
PubMed1993

Whither the rationale for thrombolytic agent administration? A retrospective review of traditional intuitive decision-making using a decision analysis model.

Of 50 consecutive patients admitted to Nenagh Hospital coronary care unit 50 per cent did not develop a myocardial infarction. Only 10 patients had definite evidence of infarction on admission. Of the 40 remaining patients, only 15 subsequently developed electrocardiographic and enzymatic confirmation of infarction. Streptokinase was administered to 5 patients who did not infarct, and was not given to 10 patients who did. These decisions to use or withhold thrombolytic therapy were retrospectively reviewed using a computer programme incorporating a decision analysis of the benefits and risks of thrombolysis. The programme examined four scenarios that used different estimates of the chance of death from infarction (pdiMI), and different safety profiles of thrombolytics. The scenario that assumed the worst safety profile and estimated pdiMI from patient age would have recommended thrombolytic treatment to the most with, and to the least without, acute infarction (i.e. 60 per cent of patients with an infarct and 8 per cent without an infarct would have been treated). Depending on the scenario assumed, the traditional intuitive method of decision-making gained from 0.08 and 0.25 quality adjusted life years (QALY's) for the average patient. Had decision analysis been used to guide these decisions these gains would have been enhanced by from 0.21 to 0.28 QALY's per patient, regardless of scenario used.

Decision Support Techniques↗
PubMed1997

Prehensile atraumatic grasper with intuitive ergonomics.

BACKGROUND: Minimal access surgery (MAS) procedures that require tissue to be grasped are impeded by the design of current instruments. The use of graspers and forceps can result in tissue damage and is highly inappropriate when handling larger organs such as the bowel, liver, and spleen. In addition, current instruments have unnatural handling characteristics. A new type of tissue grasper is presented as a solution to these problems. METHODS: The new grasper design was evolved through a process of setting basic requirements and proceeding through cycles of design, construction, evaluation, and re-design. RESULTS: The main features of the new device are prehensile grasping by finger-like jaws, which retain tissue by 'capture,' and a novel handle design with intuitive ergonomics. The jaws are interchangeable to suit differing surgical tasks and the handle and trigger mechanism are designed so that the surgeon's forefinger movement mirrors the instrument jaw action. The grasper has been used in 32 MAS procedures with no indications of trauma. CONCLUSIONS: A grasper that functions by capture has been demonstrated to be an effective solution for atraumatic tissue handling during many MAS procedures.

Endoscopes↗
PubMed1985

Intuitive and factual approaches in the comparison of contractility and repolarization measures of sympathetic myocardial activity.

Obrist (Cardiovascular Psychophysiology: A Perspective, Plenum Press, New York, 1981) has recently argued for the superiority of contractility (e.g. pulse transit time) over ventricular repolarization (e.g. T-wave amplitude) measures as indices of sympathetic myocardial influences on the grounds that the T-wave occurs during the diastolic portion of the cardiac cycle (in contrast to the systolic temporal locus of contractile-based measures). This note suggests that this argument is intuitively rather than factually based because it lacks both logical and empirical validity.

Electrocardiography↗
PubMed1992

Intuitive user interfaces (IUI): a CASE starting point for design and programming.

The acceptance of a software product depends to a considerable extent on the user interface. The class of graphic-oriented user interfaces that are called Intuitive User Interfaces (IUI) is described. These interfaces allow the user to learn to operate software programs quickly. In the following the graphical layout put to use in an IUI is elaborated. All images the layout consists of are created with the aid of a paint program. Using these images, a procedure for creating, programming and linking an IUI to software applications is discussed and recommendations are made concerning software and hardware demands for easily creating IUIs. Practical experience of the authors with this procedure, mainly in the medical area, is described.

Computer Graphics↗
PubMed1982

Errors of intuitive logic among physicians.

The effectiveness of specific training in statistics and decision-making principles upon physicians' judgmental skills was assessed by means of problems of intuitive logical reasoning. The responses of 43 statistically sophisticated physicians (SP) were compared to those of 42 practicing physicians (PP), 43 clinical nurses (CN) and 41 hospital laborers (HL). On problems evaluating use of faulty heuristics in judgments of conditional probabilities, the SP group's responses were the most biased. The proportion of subjects displaying consistent use of a particular heuristic in solving the three problems were 0.36 (SP), 0.45 (PP), 0.35 (CN) and 0.41 (HL). On problems assessing use of prevalence rate data in estimating probabilities, SP performed substantially better than the other three groups: 34% of their responses were accurate. However, 37% of their responses reflected ignorance of prevalence information concepts. We conclude that intensive statistical and decision-making training of physicians is likely to be of only limited value for improving clinicians' judgmental skills.

Adult↗
PubMedDate not supplied

Using intuition to define homesickness at summer camp.

Camp nurses are in a unique position to assist in the study of homesickness because they are living the situation. This descriptive study was undertaken because homesickness has not been defined operationally, and nurses do not have a documented set of "defining characteristics" that might be used to make a diagnosis. Twelve camp nurses from eight states completed a questionnaire on homesickness. The nurses surveyed had a consistent set of defining characteristics regarding homesickness. Intuition is reported to play a significant part in the camp nurses's diagnosis of homesickness. Symptoms of homesickness and recommended interventions are included that will ultimately help to promote a more positive camp experience for the camper.

Adolescent↗
PubMed2006

Assessing the effectiveness of "intuitive" vibrotactile warning signals in preventing front-to-rear-end collisions in a driving simulator.

This study was designed to investigate the possibility that driver responses to potential front-to-rear-end collision situations could be facilitated by implementing vibrotactile warning signals that indicate the likely direction of the potential collision. In a car following scenario in a driving simulator, participants drove along a rural road while trying to maintain a safe headway distance to the lead car using a visual distance display. Participants had to respond as quickly as possible to the sudden deceleration of the lead car which had its brake lights disabled, either with or without vibrotactile cues (presented in different experimental blocks). The results demonstrated significantly faster braking responses and larger safety margins when the vibrotactile warning signal was presented than when it was not. These findings demonstrate the effectiveness of vibrotactile cues in helping drivers to orient their spatial attention in the appropriate direction. Our results add to a growing body of empirical evidence highlighting the potential benefits of using "intuitive" vibrotactile in-car displays, in this case, to alert drivers to potential collisions and to provide time-critical directional information.

Accidents, Traffic↗