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1.
Braz. J. Pharm. Sci. (Online) ; 58: e21110, 2022. graf
Artículo en Inglés | LILACS | ID: biblio-1420494

RESUMEN

Abstract Ayahuasca (AYA) is a psychedelic beverage with therapeutic potential for many mood and anxiety disorders. Although there are some preclinical studies, no published reports have tested the behavioral effects of AYA gavage in animal models. This investigation aimed to characterize the behavior of Wistar rats after acute ingestion of AYA for 40 min in the open field test (OFT). The sample consisted of three experimental groups treated with different dosages of AYA (125, 250, or 500 mg kg-1) and a control group. Each group consisted of 10 participants. After gavage, the number of crossings of the OFT grid lines, latency to enter the central area of the device, grooming frequency, and time spent in the central perimeter of the device were immediately evaluated. Analyses were based on one-way ANOVA and a linear-regression mixture model for longitudinal data. AYA intake did not interfere with habituation. The 500 mg kg-1 group showed a decrease in the time spent in the center of the device and in the number of crossings compared to the control group in the last 10 min. These results suggest that gavage with AYA did not interfere with the results, and the behavioral effects were perceived only between 30 and 40 min after gavage. Taken together, the results indicate that three aspects should be considered in OFT studies of AYA acute effects: the moment when the observation starts, the observation period, and the AYA dosage.


Asunto(s)
Animales , Masculino , Ratas , Conducta/clasificación , Banisteriopsis/efectos adversos , Investigación Conductal/instrumentación , Prueba de Campo Abierto , Trastornos de Ansiedad/tratamiento farmacológico , Alucinógenos/efectos adversos
2.
STAR Protoc ; 2(4): 100827, 2021 12 17.
Artículo en Inglés | MEDLINE | ID: mdl-34585161

RESUMEN

Sleep behavior is characterized by long-term quiescence and increased arousal threshold, and it is homeostatically regulated. The sleep rebound after deprivation is utilized to verify the abilities to maintain homeostasis. This protocol shows how to build a programmed mechanic oscillation system and detailed procedures to conduct sleep deprivation in Drosophila. This deprivation system is featured by its programming flexibility. The knowledge of electronic circuits and a certain level of programming are both required to fulfill this protocol. For complete details on the use and execution of this protocol, please refer to Jin et al. (2021).


Asunto(s)
Conducta Animal/fisiología , Investigación Conductal , Modelos Animales de Enfermedad , Drosophila/fisiología , Privación de Sueño/fisiopatología , Animales , Investigación Conductal/instrumentación , Investigación Conductal/métodos , Diseño de Equipo , Femenino , Homeostasis/fisiología , Masculino
3.
Neurotoxicol Teratol ; 84: 106959, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33529734

RESUMEN

Chronic prenatal exposure to opioids often causes fetal opioid dependence that leads to neonatal opioid withdrawal syndrome (NOWS) shortly after delivery. Rat models of NOWS often require quantifying neonatal withdrawal behaviors using time-consuming, labor-intensive manual scoring methods. The goal of this study was to automate quantification of opioid withdrawal in neonatal rat pups. Accordingly, we used the animal behavior software Ethovision® XT to analyze archived videos of rat pups subjected to precipitated opioid withdrawal testing on postnatal day 0. We compared results obtained from Ethovision® XT with those previously obtained from manual scoring. Two endpoints reported by Ethovision® XT, Distance Moved (cm) and Movement Duration (s), had strong positive linear relationships with manually derived global withdrawal scores (GWS; R2 > 0.73). Sensitivity and specificity of each endpoint to discriminate presence and absence of low-grade withdrawal were assessed by receiver operator characteristic curve analysis, which indicated that Distance Moved and Movement Duration had excellent accuracy (AUC > 0.90). Finally, we analyzed main and interaction effects of prenatal treatment (with vehicle or mu opioid receptor full agonists) and postnatal challenge (with saline or an opioid receptor antagonist) on each endpoint and determined they were similar for the manual and automated methods. These results show that Ethovision® XT software can reliably quantify opioid withdrawal in neonatal rat pups with non-inferiority to manual scoring even in videos that were not originally purposed and optimized for Ethovision® XT analysis. This faster and less labor-intensive method of analysis is expected to accelerate progress in preclinical studies of NOWS.


Asunto(s)
Investigación Conductal/instrumentación , Morfina/efectos adversos , Narcóticos/efectos adversos , Síndrome de Abstinencia Neonatal/psicología , Animales , Animales Recién Nacidos , Automatización , Femenino , Movimiento , Embarazo , Curva ROC , Ratas , Ratas Long-Evans , Sensibilidad y Especificidad , Programas Informáticos , Grabación en Video
4.
Genes Brain Behav ; 20(1): e12650, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-32141694

RESUMEN

The rise in the number of users and institutions utilizing the rodent touchscreen technology for cognitive testing over the past decade has prompted the need for knowledge mobilization and community building. To address the needs of the growing touchscreen community, the first international touchscreen symposium was hosted at Western University. Attendees from around the world attended talks from expert neuroscientists using touchscreens to examine a vast array of questions regarding cognition and the nervous system. In addition to the symposium, a subset of attendees was invited to partake in a hands-on training course where they received touchscreen training covering both hardware and software components. Beyond the two touchscreen events, virtual platforms have been developed to further support touchscreen users: (a) Mousebytes.ca, which includes a data repository of rodent touchscreen tasks, and (b) Touchscreencognition.org, an online community with numerous training and community resources, perhaps most notably a forum where members can ask and answer questions. The advantages of the rodent touchscreen technology for cognitive neuroscience research has allowed neuroscientists from diverse backgrounds to test specific cognitive processes using well-validated and standardized apparatus, contributing to its rise in popularity and its relevance to modern neuroscience research. The commitment of the touchscreen community to data, task development and information sharing not only ensures an expansive future of the use of rodent touchscreen technology but additionally, quality research that will increase translation from preclinical studies to clinical successes.


Asunto(s)
Investigación Conductal/métodos , Cognición , Roedores/fisiología , Interfaz Usuario-Computador , Animales , Investigación Conductal/instrumentación , Investigación Conductal/estadística & datos numéricos , Congresos como Asunto , Roedores/genética , Roedores/psicología , Tacto
5.
Genes Brain Behav ; 20(1): e12659, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-32348610

RESUMEN

The posterior parietal cortex (PPC) participates in cognitive processes including working memory (WM), sensory evidence accumulation, and perceptually guided decision making. However, surprisingly little work has used temporally precise manipulations to dissect its role in different epochs of behavior taking place over short timespans, such as WM tasks. As a result, a consistent view of the temporally precise role of the PPC in these processes has not been described. In the present study, we investigated the temporally specific role of the PPC in the Trial-Unique, Nonmatching-to-Location (TUNL) task, a touchscreen-based, visuospatial WM task that relies on the PPC. To disrupt PPC activity in a temporally precise manner, we applied mild intracranial electrical stimulation (ICES). We found that intra-PPC ICES (100 µA) significantly impaired accuracy in TUNL without significantly altering response latency. Moreover, we found that the impairment was specific to ICES applied during the delay and test phases of TUNL. Consistent with previous reports showing delay- and choice-specific neuronal activity in the PPC, the results provide evidence that the rat PPC is required for maintaining memory representations of stimuli over a delay period as well as for making successful comparisons and choices between test stimuli. In contrast, the PPC appears not to be critical for initial encoding of sample stimuli. This pattern of results may indicate that early encoding of visual stimuli is independent of the PPC or that the PPC becomes engaged only when visual stimuli are spatially complex or involve memory or decision making.


Asunto(s)
Lóbulo Parietal/fisiología , Conducta Espacial , Percepción Visual , Animales , Investigación Conductal/instrumentación , Masculino , Desempeño Psicomotor , Ratas , Ratas Long-Evans , Tiempo de Reacción
6.
Genes Brain Behav ; 20(1): e12686, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-32691490

RESUMEN

Understanding the rules that govern neuronal dynamics throughout the brain to subserve behavior and cognition remains one of the biggest challenges in neuroscience research. Recent technical advances enable the recording of increasingly larger neuronal populations to produce increasingly more sophisticated datasets. Despite bold and important open-science and data-sharing policies, these datasets tend to include unique data acquisition methods, behaviors, and file structures. Discrepancies between experimental protocols present key challenges in comparing data between laboratories and across different brain regions and species. Here, we discuss our recent efforts to create a standardized and high-throughput research platform to address these issues. The McGill-Mouse-Miniscope (M3) platform is an initiative to combine miniscope calcium imaging with standardized touchscreen-based animal behavioral testing. The goal is to curate an open-source and standardized framework for acquiring, analyzing, and accessing high-quality data of the neuronal dynamics that underly cognition throughout the brain in mice, marmosets, and models of disease. We end with a discussion of future developments and a call for users to adopt this standardized approach.


Asunto(s)
Investigación Conductal/instrumentación , Encéfalo/fisiología , Interfaz Usuario-Computador , Animales , Investigación Conductal/métodos , Encéfalo/citología , Encéfalo/metabolismo , Calcio/metabolismo , Cognición , Ensayos Analíticos de Alto Rendimiento/instrumentación , Ensayos Analíticos de Alto Rendimiento/métodos , Ratones , Microscopía Fluorescente/instrumentación , Microscopía Fluorescente/métodos , Neuronas/metabolismo , Neuronas/fisiología
7.
Genes Brain Behav ; 20(1): e12664, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-32374080

RESUMEN

Translational cognitive neuroscience of dementia involves mainly two areas: the validation of newly developed dementia animal models and the preclinical assessment of novel drug candidates in such model animals. To validate new animal models, a multidomain panel (battery) approach is essential in that dementia is, by definition, not merely a memory disorder but rather a multidomain cognitive/behavior disorder: animal modeling with a certain type of dementia would develop cognitive impairments in multiple (two at minimum) domains in a specific order according to unique spreading patterns of its neuropathology. In new drug development, the availability of highly sensitive tools assessing animal cognition is crucial to the detection of cognitive decline at the earliest stage of the disease, which may be an optimal time point to test a drug candidate. Using interspecies translatable (analogous) cognitive tasks would also be necessary to successfully predict the efficacy of drug candidates in subsequent clinical trials. Currently, this translational prediction is seriously limited given discrepancies in behavioral assessment methods between animals and humans in the preclinical and clinical trials, respectively. Since neurodegenerative diseases are often accompanied by not only cognitive but also affective and movement disorders, simultaneous assessment of task-relevant locomotor behavior and motivation is also important to rule out the effects of potential confounders. The touchscreen operant platform may satisfy these needs by offering several advantages over conventional methodology. In this review, we discuss the touchscreen operant chamber system and highlight some of its qualities as a promising and desirable tool for translational research of dementia.


Asunto(s)
Investigación Conductal/métodos , Cognición , Condicionamiento Operante , Demencia/fisiopatología , Animales , Investigación Conductal/instrumentación , Ratones , Ciencia Traslacional Biomédica/instrumentación , Ciencia Traslacional Biomédica/métodos , Interfaz Usuario-Computador
8.
Genes Brain Behav ; 20(1): e12665, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-32383519

RESUMEN

Categorization is a fundamental cognitive function that organizes our experiences into meaningful "chunks." This category knowledge can then be generalized to novel stimuli and situations. Multiple clinical populations, including people with Parkinson's disease, amnesia, autism, ADHD and schizophrenia, have impairments in the acquisition and use of categories. Although rodent research is well suited for examining the neural mechanisms underlying cognitive functions, many rodent cognitive tasks have limited translational value. To bridge this gap, we use touchscreens to permit greater flexibility in stimulus presentation and task design, track key dependent measures, and minimize experimenter involvement. Touchscreens offer a valuable tool for creating rodent cognitive tasks that are directly comparable to tasks used with humans. Touchscreen tasks are also readily used with cutting-edge neuroscientific methods that are difficult to do in humans such as optogenetics, chemogenetics, neurophysiology and calcium imaging (using miniscopes). In this review, we show advantages of touchscreen-based tasks for studying category learning in rats. We also address multiple factors for consideration when designing category learning tasks, including the limitations of the rodent visual system, experimental design, and analysis strategies.


Asunto(s)
Investigación Conductal/métodos , Generalización Psicológica , Roedores/fisiología , Interfaz Usuario-Computador , Animales , Investigación Conductal/instrumentación , Roedores/psicología
9.
Genes Brain Behav ; 20(1): e12705, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-33009724

RESUMEN

Many neurodegenerative and neuropsychiatric diseases and other brain disorders are accompanied by impairments in high-level cognitive functions including memory, attention, motivation, and decision-making. Despite several decades of extensive research, neuroscience is little closer to discovering new treatments. Key impediments include the absence of validated and robust cognitive assessment tools for facilitating translation from animal models to humans. In this review, we describe a state-of-the-art platform poised to overcome these impediments and improve the success of translational research, the Mouse Translational Research Accelerator Platform (MouseTRAP), which is centered on the touchscreen cognitive testing system for rodents. It integrates touchscreen-based tests of high-level cognitive assessment with state-of-the art neurotechnology to record and manipulate molecular and circuit level activity in vivo in animal models during human-relevant cognitive performance. The platform also is integrated with two Open Science platforms designed to facilitate knowledge and data-sharing practices within the rodent touchscreen community, touchscreencognition.org and mousebytes.ca. Touchscreencognition.org includes the Wall, showcasing touchscreen news and publications, the Forum, for community discussion, and Training, which includes courses, videos, SOPs, and symposia. To get started, interested researchers simply create user accounts. We describe the origins of the touchscreen testing system, the novel lines of research it has facilitated, and its increasingly widespread use in translational research, which is attributable in part to knowledge-sharing efforts over the past decade. We then identify the unique features of MouseTRAP that stand to potentially revolutionize translational research, and describe new initiatives to partner with similar platforms such as McGill's M3 platform (m3platform.org).


Asunto(s)
Investigación Conductal/métodos , Modelos Animales de Enfermedad , Ciencia Traslacional Biomédica/métodos , Animales , Investigación Conductal/instrumentación , Ciencia Ciudadana/métodos , Ratones , Ciencia Traslacional Biomédica/instrumentación , Interfaz Usuario-Computador
10.
Genes Brain Behav ; 20(1): e12695, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-32812350

RESUMEN

The relative lack of sensitive and clinically valid tests of rodent behavior might be one of the reasons for the limited success of the clinical translation of preclinical Alzheimer's disease (AD) research findings. There is a general interest in innovative behavioral methodology, and protocols have been proposed for touchscreen operant chambers that might be superior to existing cognitive assessment methods. We assessed and analyzed touchscreen performance in several novel ways to examine the possible occurrence of early signs of prefrontal (PFC) functional decline in the APP/PS1 mouse model of AD. Touchscreen learning performance was compared between APP/PS1-21 mice and wildtype littermates on a C57BL/6J background at 3, 6 and 12 months of age in parallel to the assessment of spatial learning, memory and cognitive flexibility in the Morris water maze (MWM). We found that older mice generally needed more training sessions to complete the touchscreen protocol than younger ones. Older mice also displayed defects in MWM working memory performance, but touchscreen protocols detected functional changes beginning at 3 months of age. Histological changes in PFC of APP/PS1 mice indeed occurred as early as 3 months. Our results suggest that touchscreen operant protocols are more sensitive to PFC dysfunction, which is of relevance to the use of these tasks and devices in preclinical AD research and experimental pharmacology.


Asunto(s)
Enfermedad de Alzheimer/fisiopatología , Investigación Conductal/métodos , Condicionamiento Operante , Aprendizaje por Laberinto , Corteza Prefrontal/fisiopatología , Enfermedad de Alzheimer/genética , Precursor de Proteína beta-Amiloide/genética , Animales , Investigación Conductal/instrumentación , Femenino , Masculino , Ratones , Ratones Endogámicos C57BL , Presenilina-1/genética , Interfaz Usuario-Computador
12.
Curr Protoc Neurosci ; 93(1): e102, 2020 09.
Artículo en Inglés | MEDLINE | ID: mdl-32898306

RESUMEN

Elucidating the complex neural mechanisms that underlie cognition is contingent upon our ability to measure behavioral outputs reliably in animal models. While the development of open-source software has made behavioral science more accessible, behavioral research remains underappreciated and underutilized. One reason is the large real estate necessitated by traditional behavioral setups. Space must be specifically allocated for a controlled testing environment, accommodate the large footprint of mazes used in behavioral research, and allow a contiguous computerized area for data acquisition. Additionally, to achieve the distinct and sometimes incompatible environmental conditions required by different tasks, a suite of testing rooms may be necessary. Because space is a limited resource, this makes behavioral testing impractical for some labs or leads to implementation of suboptimal solutions that compromise the ergonomics of the working space, prevent the adequate control of environmental parameters around the testing setup, and jeopardize experimental reproducibility. Here, we describe a modular, space-saving, self-sufficient, functional, customizable, and cost-efficient setup to allow a large line of behavioral tests in mice within a single, compact room (<8 m2 ). Because it is modular by design, this setup requires no compromises on ergonomics, environmental control, or complexity of the visual landscape. It is inherently effective at streamlining behavioral experiments by eliminating the need to redefine tracking parameters, and makes swapping between configurations fast (∼1 min) and effortless. Presently, this design allows one to run eight major behavioral tasks, permitting a detailed and comprehensive analysis of mouse behavior within the footprint of a small office. © 2020 Wiley Periodicals LLC. Basic Protocol 1: Constructing the support table Support Protocol 1: Constructing the open-field maze Support Protocol 2: Constructing IR-permissive inserts for light-dark assays Support Protocol 3: Constructing the three-chamber maze Support Protocol 4: Constructing the Y maze Support Protocol 5: Constructing the elevated plus maze Support Protocol 6: Constructing the Barnes maze Basic Protocol 2: Setting up the behavior room: flange and pulley systems Basic Protocol 3: Setting up the behavior room: environmental and storage systems Basic Protocol 4: Assembling and switching between configurations.


Asunto(s)
Conducta Animal/fisiología , Investigación Conductal/instrumentación , Aprendizaje por Laberinto/fisiología , Neurociencias/instrumentación , Animales , Investigación Conductal/métodos , Ratones , Neurociencias/métodos
13.
Prog Brain Res ; 253: 243-262, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32771126

RESUMEN

A major pain for researchers in all fields is that they have less and less time for actual science activities: reading, thinking, coming up with new theories and hypotheses, testing, analyzing data, writing. In psychology, three of the most time-consuming nonactual science activities are: learning how to program an experiment, recruiting participants, and preparing teaching materials. Testable (www.testable.org) provides a suite of academic tools to speed things up considerably. The Testable software allows the development of most psychology experiments in minutes, using a natural language form and a spreadsheet. Furthermore, any experiment can be easily converted into a social experiment in Testable Arena, with multiple participants interacting and viewing each other's responses. Experiments can then be published to Testable Library, a public repository for demonstration and sharing purposes. Participants can be recruited from Testable Minds, the subject pool with the most advanced participants verification system. Testable Minds employs multiple checks (such as face authentication) to ensure participants have accurate demographics (age, sex, location), are human, unique, and reliable. Finally, the Testable Class module can be used to teach psychology through experiments. It features over 50 ready-made classic psychology experiments, fully customizable, which instructors can add to their classes, together with their own experiments. These experiments can then be made available to students to do, import, modify, and use to collect data as part of their class. These Testable tools, backed up by a strong team of academic advisors and thousands of users, can save psychology researchers and other behavioral scientists valuable time for science.


Asunto(s)
Investigación Conductal/educación , Investigación Conductal/métodos , Psicología/educación , Psicología/métodos , Diseño de Software , Investigación Conductal/instrumentación , Humanos , Selección de Paciente , Psicología/instrumentación , Materiales de Enseñanza
14.
J Neurophysiol ; 123(4): 1420-1426, 2020 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-32130092

RESUMEN

Generally behavioral neuroscience studies of the common marmoset employ adaptations of well-established training methods used with macaque monkeys. However, in many cases these approaches do not readily generalize to marmosets indicating a need for alternatives. Here we present the development of one such alternate: a platform for semiautomated, voluntary in-home cage behavioral training that allows for the study of naturalistic behaviors. We describe the design and production of a modular behavioral training apparatus using CAD software and digital fabrication. We demonstrate that this apparatus permits voluntary behavioral training and data collection throughout the marmoset's waking hours with little experimenter intervention. Furthermore, we demonstrate the use of this apparatus to reconstruct the kinematics of the marmoset's upper limb movement during natural foraging behavior.NEW & NOTEWORTHY The study of marmosets in neuroscience has grown rapidly and presents unique challenges. We address those challenges with an innovative platform for semiautomated, voluntary training that allows marmosets to train throughout their waking hours with minimal experimenter intervention. We describe the use of this platform to capture upper limb kinematics during foraging and to expand the opportunities for behavioral training beyond the limits of traditional training sessions. This flexible platform can easily incorporate other tasks.


Asunto(s)
Conducta Animal/fisiología , Investigación Conductal/métodos , Actividad Motora/fisiología , Neurociencias/métodos , Práctica Psicológica , Animales , Investigación Conductal/instrumentación , Fenómenos Biomecánicos , Callithrix , Femenino , Masculino , Neurociencias/instrumentación
15.
Braz J Med Biol Res ; 52(11): e8899, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31664307

RESUMEN

Few behavioral tests allow measuring several characteristics and most require training, complex analyses, and/or are time-consuming. We present an apparatus based on rat exploratory behavior. Composed of three different environments, it allows the assessment of more than one behavioral characteristic in a short 3-min session. Factorial analyses have defined three behavioral dimensions, which we named Exploration, Impulsivity, and Self-protection. Behaviors composing the Exploration factor were increased by chlordiazepoxide and apomorphine and decreased by pentylenetetrazole. Behaviors composing the Impulsivity factor were increased by chlordiazepoxide, apomorphine, and both acute and chronic imipramine treatments. Behaviors composing the Self-protection factor were decreased by apomorphine. We submitted Wistar rats to the open-field test, the elevated-plus maze, and to the apparatus we are proposing. Measures related to exploratory behavior in all three tests were correlated. Measures composing the factors Impulsivity and Self-protection did not correlate with any measures from the two standard tests. Also, compared with existing impulsivity tests, the one we proposed did not require previous learning, training, or sophisticated analysis. Exploration measures from our test are as easy to obtain as the ones from other standard tests. Thus, we have proposed an apparatus that measured three different behavioral characteristics, was simple and fast, did not require subjects to be submitted to previous learning or training, was sensitive to drug treatments, and did not require sophisticated data analyses.


Asunto(s)
Ansiedad/psicología , Conducta Animal/fisiología , Investigación Conductal/instrumentación , Conducta Exploratoria/fisiología , Miedo/fisiología , Conducta Impulsiva/fisiología , Animales , Ansiolíticos/farmacología , Antidepresivos Tricíclicos/farmacología , Apomorfina/farmacología , Conducta Animal/efectos de los fármacos , Clordiazepóxido/farmacología , Agonistas de Dopamina/farmacología , Conducta Exploratoria/efectos de los fármacos , Miedo/efectos de los fármacos , Antagonistas del GABA/farmacología , Conducta Impulsiva/efectos de los fármacos , Masculino , Aprendizaje por Laberinto/efectos de los fármacos , Aprendizaje por Laberinto/fisiología , Modelos Animales , Pentilenotetrazol/farmacología , Ratas Wistar , Factores de Tiempo
16.
J Med Internet Res ; 21(8): e12832, 2019 08 20.
Artículo en Inglés | MEDLINE | ID: mdl-31432781

RESUMEN

BACKGROUND: Recent advances in mobile technologies for sensing human biosignals are empowering researchers to collect real-world data outside of the laboratory, in natural settings where participants can perform their daily activities with minimal disruption. These new sensing opportunities usher a host of challenges and constraints for both researchers and participants. OBJECTIVE: This viewpoint paper aims to provide a comprehensive guide to aid research teams in the selection and management of sensors before beginning and while conducting human behavior studies in the wild. The guide aims to help researchers achieve satisfactory participant compliance and minimize the number of unexpected procedural outcomes. METHODS: This paper presents a collection of challenges, consideration criteria, and potential solutions for enabling researchers to select and manage appropriate sensors for their research studies. It explains a general data collection framework suitable for use with modern consumer sensors, enabling researchers to address many of the described challenges. In addition, it provides a description of the criteria affecting sensor selection, management, and integration that researchers should consider before beginning human behavior studies involving sensors. On the basis of a survey conducted in mid-2018, this paper further illustrates an organized snapshot of consumer-grade human sensing technologies that can be used for human behavior research in natural settings. RESULTS: The research team applied the collection of methods and criteria to a case study aimed at predicting the well-being of nurses and other staff in a hospital. Average daily compliance for sensor usage measured by the presence of data exceeding half the total possible hours each day was about 65%, yielding over 355,000 hours of usable sensor data across 212 participants. A total of 6 notable unexpected events occurred during the data collection period, all of which had minimal impact on the research project. CONCLUSIONS: The satisfactory compliance rates and minimal impact of unexpected events during the case study suggest that the challenges, criteria, methods, and mitigation strategies presented as a guide for researchers are helpful for sensor selection and management in longitudinal human behavior studies in the wild.


Asunto(s)
Investigación Conductal/métodos , Enfermeras y Enfermeros , Dispositivos Electrónicos Vestibles , Investigación Conductal/instrumentación , Recolección de Datos/instrumentación , Recolección de Datos/métodos , Electrocardiografía Ambulatoria , Emociones , Ejercicio Físico , Humanos , Estudios Longitudinales , Aplicaciones Móviles , Sueño , Teléfono Inteligente , Medios de Comunicación Sociales , Encuestas y Cuestionarios , Tecnología , Voz
17.
J Neurosci Methods ; 326: 108374, 2019 10 01.
Artículo en Inglés | MEDLINE | ID: mdl-31351974

RESUMEN

BACKGROUND: There is a growing interest in complex, active, and immersive behavioral neuroscience tasks. However, the development and control of such tasks present unique challenges. NEW METHOD: The Unified Suite for Experiments (USE) is an integrated set of hardware and software tools for the design and control of behavioral neuroscience experiments. The software, developed using the Unity video game engine, supports both active tasks in immersive 3D environments and static 2D tasks used in more traditional visual experiments. The custom USE SyncBox hardware, based around an Arduino Mega2560 board, integrates and synchronizes multiple data streams from different pieces of experimental hardware. The suite addresses three key issues with developing cognitive neuroscience experiments in Unity: tight experimental control, accurate sub-ms timing, and accurate gaze target identification. RESULTS: USE is a flexible framework to realize experiments, enabling (i) nested control over complex tasks, (ii) flexible use of 3D or 2D scenes and objects, (iii) touchscreen-, button-, joystick- and gaze-based interaction, and (v) complete offline reconstruction of experiments for post-processing and temporal alignment of data streams. COMPARISON WITH EXISTING METHODS: Most existing experiment-creation tools are not designed to support the development of video-game-like tasks. Those that do use older or less popular video game engines as their base, and are not as feature-rich or enable as precise control over timing as USE. CONCLUSIONS: USE provides an integrated, open source framework for a wide variety of active behavioral neuroscience experiments using human and nonhuman participants, and artificially-intelligent agents.


Asunto(s)
Investigación Conductal/métodos , Neurociencias/métodos , Desempeño Psicomotor , Percepción Espacial , Investigación Biomédica Traslacional/métodos , Realidad Virtual , Percepción Visual , Adulto , Investigación Conductal/instrumentación , Humanos , Neurociencias/instrumentación , Desempeño Psicomotor/fisiología , Percepción Espacial/fisiología , Investigación Biomédica Traslacional/instrumentación , Juegos de Video , Percepción Visual/fisiología
18.
J Neurosci Methods ; 323: 13-21, 2019 07 15.
Artículo en Inglés | MEDLINE | ID: mdl-31071345

RESUMEN

BACKGROUND: Computerized control of behavioral paradigms is an essential element of neurobehavioral studies, especially physiological recording studies that require sub-millisecond precision. Few software solutions provide a simple, flexible environment to create and run these applications. MonkeyLogic, a MATLAB-based package, was developed to meet these needs, but faces a performance crisis and obsolescence due to changes in MATLAB itself. NEW METHOD: Here we report a complete redesign and rewrite of MonkeyLogic, now NIMH MonkeyLogic, that natively supports the latest 64-bit MATLAB on the Windows platform. Major layers of the underlying real-time hardware control were removed and replaced by custom toolboxes: NIMH DAQ Toolbox and MonkeyLogic Graphics Library. The redesign resolves undesirable delays in data transfers and limitations in graphics capabilities. RESULTS: NIMH MonkeyLogic is essentially a new product. It provides a powerful new scripting framework, has dramatic speed enhancements and provides major new graphics abilities. COMPARISON WITH EXISTING METHOD: NIMH MonkeyLogic is fully backward compatible with earlier task scripts, but with better temporal precision. It provides more input device options, superior graphics and a new real-time closed-loop programming model. Because NIMH MonkeyLogic requires no commercial toolbox and has a reduced hardware requirement, implementation costs are substantially reduced. CONCLUSION: NIMH MonkeyLogic is a versatile, powerful, up-to-date tool for controlling a wide range of experiments. It is freely available from https://monkeylogic.nimh.nih.gov/.


Asunto(s)
Percepción Auditiva/fisiología , Investigación Conductal/métodos , Neurofisiología/métodos , Neurociencias/métodos , Desempeño Psicomotor/fisiología , Psicofísica/métodos , Percepción Visual/fisiología , Investigación Conductal/instrumentación , Humanos , National Institute of Mental Health (U.S.) , Neurofisiología/instrumentación , Neurociencias/instrumentación , Psicofísica/instrumentación , Programas Informáticos , Estados Unidos
19.
J Neurosci Methods ; 320: 107-115, 2019 05 15.
Artículo en Inglés | MEDLINE | ID: mdl-30946877

RESUMEN

BACKGROUND: Systems neuroscience experiments often require the integration of precisely timed data acquisition and behavioral monitoring. While specialized commercial systems have been designed to meet various needs of data acquisition and device control, they often fail to offer flexibility to interface with new instruments and variable behavioral experimental designs. NEW METHOD: We developed a Teensy 3.2 microcontroller-based interface that is easily programmable, and offers high-speed, precisely timed behavioral data acquisition and digital and analog outputs for controlling sCMOS cameras and other devices. RESULTS: We demonstrate the flexibility and the temporal precision of the Teensy interface in two experimental settings. In one example, we used the Teensy interface to record an animal's directional movement on a spherical treadmill, while delivering repeated digital pulses that can be used to control image acquisition from a sCMOS camera. In another example, we used the Teensy interface to deliver an auditory stimulus and a gentle eye puff at precise times in a trace conditioning eye blink behavioral paradigm, while delivering repeated digital pulses to trigger camera image acquisition. COMPARISON WITH EXISTING METHODS: This interface allows high-speed and temporally precise digital data acquisition and device control during diverse behavioral experiments. CONCLUSION: The Teensy interface, consisting of a Teensy 3.2 and custom software functions, provides a temporally precise, low-cost, and flexible platform to integrate sCMOS camera control into behavioral experiments.


Asunto(s)
Conducta Animal/fisiología , Investigación Conductal/instrumentación , Neurociencias/instrumentación , Imagen Óptica/instrumentación , Animales , Investigación Conductal/normas , Femenino , Ratones , Ratones Endogámicos C57BL , Neurociencias/normas , Imagen Óptica/normas
20.
J Neurosci Methods ; 320: 16-25, 2019 05 15.
Artículo en Inglés | MEDLINE | ID: mdl-30871986

RESUMEN

BACKGROUND: Motor and non-motor behavior analyses are increasingly utilizied in drug discovery and screening, detection of neurobehavioral disorders and chemical toxicology. The emergence of computational approaches has helped to develop different tools to analyse complex behaviors. Analysis of locomotor behavior helps in understanding the motor neuron disorders like Parkinson's Disease. Although many animal models are available to study the locomotion, adult zebrafish has emerged as a simple and efficient model to study this behavior. An inexpensive and easily customizable tool is required to replace the licensed and expensive set-up to analyse the locomotor behavior. NEW METHOD: In this study we have optimized the ImageJ plugin wrMTrck to analyse motor and non-motor behaviors in adult zebrafish. We have generated a macro to simplify the preprocessing and tracking. Subsequently, we have developed a data analysis sheet to analyse various behavioral end points. RESULTS: We have successfully developed an inexpensive video acquisition set-up and optimized wrMTrck for adult zebrafish. In order to demonstrate the efficacy of this method, adult zebrafish were injected with MPTP and motor and non-motor behaviors were analysed. Expectedly, MPTP injected fish showed decrease in dopamine level and dat expression level, which subsequently led to locomotor behavioral defects as well as anxiety, a non-motor symptom of PD. COMPARISON WITH EXISTING METHOD(S): Further, the obtained results were validated by another ImageJ macro developed by Pelkowski et al. (2011) and we observed identical trajectories. CONCLUSIONS: The usefulness of popular ImageJ plugin wrMTrck and this extended protocol will be helpful to quantify motor and non-motor behavioral parameters.


Asunto(s)
Conducta Animal/fisiología , Investigación Conductal , Locomoción/fisiología , Neurociencias , Trastornos Parkinsonianos/fisiopatología , 1-Metil-4-fenil-1,2,3,6-Tetrahidropiridina/farmacología , Animales , Conducta Animal/efectos de los fármacos , Investigación Conductal/instrumentación , Investigación Conductal/métodos , Investigación Conductal/normas , Modelos Animales de Enfermedad , Dopaminérgicos/farmacología , Locomoción/efectos de los fármacos , Intoxicación por MPTP/inducido químicamente , Intoxicación por MPTP/fisiopatología , Neurociencias/instrumentación , Neurociencias/métodos , Neurociencias/normas , Trastornos Parkinsonianos/inducido químicamente , Pez Cebra
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