International Journal of Psychological Research最新文献

{"title":"A Volumetric Deep Architecture to Discriminate Parkinsonian Patterns from Intermediate Pose Representations.","authors":"Jean Portilla, Edgar Rangel, Luis Guayacán, Fabio Martínez","doi":"10.21500/20112084.7405","DOIUrl":"10.21500/20112084.7405","url":null,"abstract":"<p><p>Parkinson's disease (PD) is a common neurodegenerative disorder worldwide, with over 6.2 million registered cases. Gait analysis plays a fundamental role in evaluating motor abnormalities associated with this disease. However, current methods, such as marker-based systems, are intrusive and expert-dependent. Markerless alternatives, like video sequence analysis, have been proposed, but they tend to provide overall classification scores and lack the ability to interpret joint kinematics in detail. An innovative technique is presented using volumetric convolutional networks that can learn intermediate postural patterns and distinguish between Parkinson's patients and control subjects. This approach utilizes <i>OpenPose</i> activations and then applies hierarchical convolution to minimize classification. In tests conducted with 14 Parkinson's patients and 16 control subjects, this method achieved a classification accuracy of 98%.</p>","PeriodicalId":46542,"journal":{"name":"International Journal of Psychological Research","volume":"17 2","pages":"84-90"},"PeriodicalIF":1.2,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11804117/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143383719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Functional Connectivity Analysis of Prej udice Among Colombian Armed Conflict Former Actors.","authors":"Jhon Jair Quiza-Montealegre, Andrés Quintero-Zea, Natalia Trujillo, José David López","doi":"10.21500/20112084.7333","DOIUrl":"10.21500/20112084.7333","url":null,"abstract":"<p><p>Despite institutional efforts, reconciliation among former actors of the Colombian armed conflict has yet to be achieved, with prejudice being one direct driver of this drawback. We present an EEG-based functional connectivity study applied to four groups of former actors who completed an Implicit Association Test designed to measure prejudice toward victims or combatants. We analyzed seven measures of functional connectivity calculated in six different frequency bands and two experimental conditions. In the behavioral task, we found more prejudice toward victims from the same victims and more prejudice of civilians toward combatants. For the connectivity measures, we found differences in theta band among the victims' and ex-paramilitaries' groups concerning the civilians' and ex-guerrillas' groups, and differences in the beta2 band among the victims' and ex-guerrillas' groups concerning the ex-paramilitaries' group. The results help us design more effective socio-cognitive interventions to reduce prejudice.</p>","PeriodicalId":46542,"journal":{"name":"International Journal of Psychological Research","volume":"17 2","pages":"36-46"},"PeriodicalIF":1.2,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11804116/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143383725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Brains are Probabilistic, Electrophysiologically Intricate and Triune: A Biased- Random Walk Perspective on Computational Neuroscience.","authors":"Juan Fernando Gómez-Molina","doi":"10.21500/20112084.7397","DOIUrl":"10.21500/20112084.7397","url":null,"abstract":"<p><p>The pursuit of a unified theory that captures the intricacies of the brain and mind continues to be a significant challenge in theoretical neuroscience. This paper presents a novel, triune framework that utilizes the concept of collective biased random walk (cBRW). Our approach strives to transcend biological specifics, offering a high-level abstraction that remains general and applicable across various neural phenomena. Despite the solid traditional foundation of computational neuroscience, the intricate delicacy of neural processes calls for a renewed probabilistic approach. We aim to utilize the intuitive nature of probability concepts -such as the probability of localization and state, and uniform probability distribution- to study the stochastic organization of electric charges and signals in the brain. This electrophysiological intricacy emerges from the seemingly paradoxical reality that tiny electric events, while random, collectively give rise to predictable, long-range oscillations. These oscillations manifest in three groups of activation states. Our framework categorizes the brain as a triune system, accommodating classical, semiclassical, and non-classical interpretations of both probabilistic phenomena and cBRW models, alongside three groups of states. We conclude that by appreciating, rather than overlooking, the tiny random walks of electric charges and signals in the brain, we can gain a triune mathematical foundation for theoretical brain science, the powerful capabilities of this organ, and the electromagnetic interfaces we can develop.</p>","PeriodicalId":46542,"journal":{"name":"International Journal of Psychological Research","volume":"17 2","pages":"100-112"},"PeriodicalIF":1.2,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11804126/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143383721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unveiling Visual Physiology and Steady-State Evoked Potentials using Low-Cost and Transferable Electroencephalography for Evaluating Neuronal Activation.","authors":"Verónica Henao Isaza, Valeria Cadavid Castro, Eliana Salas Villa, Santiago González Cuartas, John Fredy Ochoa","doi":"10.21500/20112084.7299","DOIUrl":"10.21500/20112084.7299","url":null,"abstract":"<p><strong>Purpose: </strong>The ability to see and process images depends on the function of the eyes and the processing of visual information by neurons in the cerebral cortex, something that could be measured through electroencephalography (EEG). Although the EEG is used to evaluate visual pathways in children and demyelination diseases, the limited utilization of brain recording techniques in other applications like therapy is primarily due to budget constraints. The goal of this paper is to demonstrate results from studying brain aspects of vision, utilizing measurements based on oscillatory activity analysis, low-cost, portable equipment, and a processing pipeline relying on Python's open-source libraries. These studies involve healthy subjects who wear glasses to assess changes in visual perception.</p><p><strong>Methods: </strong>First, electroencephalographic signals were recorded while the subjects observed a visually standardized stimulus. The signals were processed and filtered to reduce artifacts, and the power spectral density (PSD) was calculated to observe the presence of steady-state visual potentials (VEP) to confirm the capture of neuronal activation to the visual stimulus.</p><p><strong>Results: </strong>It was possible to establish a difference between subjects wearing and not wearing their glasses, allowing validation that the information acquired with the transferable equipment is adequate for the analysis of neuronal activity related to visual processing, opening the possibility to be used in future studies in therapy.</p><p><strong>Conclusion: </strong>This study contributes to the development of cost-effective and portable EEG solutions for visual system analysis. It demonstrates the potential for applying transferable EEG devices in clinical settings and highlights the importance of tailored visual stimuli for reliable neural activation.</p>","PeriodicalId":46542,"journal":{"name":"International Journal of Psychological Research","volume":"17 2","pages":"25-35"},"PeriodicalIF":1.2,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11804119/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143383732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SynchroLINNce: Toolbox for Neural Synchronization and Desynchronization Assessment in Epilepsy Animal Models.","authors":"Sofa M A F Rodrigues, Vinícius R Cota","doi":"10.21500/20112084.7329","DOIUrl":"10.21500/20112084.7329","url":null,"abstract":"<p><p>Epilepsy is a worldwide public health issue, given its biological, social, and economic impacts. Considering several open questions about synchronization and desynchronization mechanisms underlying epileptic phenomena, the development of algorithms and computational toolboxes for such analysis is highly relevant to their research. Moreover, given the recent developments of neurotechnology for epilepsy, it is essential to understand that proposals like computational tools may provide consistent data for closed-loop control systems, necessary in neuromodulation treatment alternatives, and for real-time monitoring systems to predict the occurrence of epileptic seizures. In the present work, SynchroLINNce, a freely distributable MATLAB toolbox designed to be used by epilepsy neuroscientists, including software-untrained), is proposed. Among its features, several functionalities such as recording visualization, digital filtering, and correlation analysis, as well as more specific methodologies, such as mechanisms for the automatic detection of epileptiform spikes, morphology analysis of these spikes, and their coincidence between channels are presented.</p>","PeriodicalId":46542,"journal":{"name":"International Journal of Psychological Research","volume":"17 2","pages":"14-24"},"PeriodicalIF":1.2,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11804118/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143383731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Suicidal Ideation in Migrant Children and Preadolescents and its Relation to Discrimination and Contextual Problems.","authors":"Diego Henríquez, Alejandra Caqueo-Urízar, Alfonso Urzúa, Jaime Felipe Barahona","doi":"10.21500/20112084.6820","DOIUrl":"10.21500/20112084.6820","url":null,"abstract":"<p><strong>Background: </strong>Research regarding the effects of discrimination on suicidal thoughts of migrant youth is scarce. For this reason, the present study sought to examine the relationship between experiences of discrimination and suicidal ideation in migrant boys and girls considering as mediating variables the Problems with Classmates and Integration and Social Competence.</p><p><strong>Methods: </strong>A cross-sectional design was used for the study, which considered a sample of 198 young migrants in Chile, 101 (51%) of whom were male and 97 (49%) females, aged between 9 and 13 years (ME = 10.18; SD = .92). A multiple mediation analysis was carried out.</p><p><strong>Results: </strong>The estimated model indicated that discrimination is positively related to suicidal ideation and that this relationship is fully mediated by peer problems and social integration and competence of migrant children.</p><p><strong>Conclusion: </strong>Our findings demonstrate the importance of addressing and preventing discrimination within the classroom. Migrants who experience discrimination can be severely affected, with serious consequences for their mental health. Actively promoting the inclusion of migrant children could help to combat discrimination within the school context.</p>","PeriodicalId":46542,"journal":{"name":"International Journal of Psychological Research","volume":"18 1","pages":"30-38"},"PeriodicalIF":1.2,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12410203/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145151364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Examining the Factor Structure of the Family Member Well-being Index (FMWB) in a Colombian Sample.","authors":"Nicolas Martínez-Ramos, Raquel Rodríguez-Alcántaraí, Milton Bermúdez-Jaimes","doi":"10.21500/20112084.6889","DOIUrl":"10.21500/20112084.6889","url":null,"abstract":"<p><p>The Family Well-Being Index (FMWB) is a broadly used instrument. However, it has not been tested for any latent structure via any factor analysis. This study aimed to check the internal structure of the FMWB by implementing 4-factor models in a Colombian sample from 3 different regions. A validity evidence study was conducted, and a sample of 524 nuclear families was obtained (59.2% Bogotá, 15.3% Santa Marta, 25.6% Cali-Palmira). The data was analyzed by organizing the answer in a univariate and multivariate matrix arrangement, using the software factor and R, the models were tested; the best fitting model was the bi-factor model (x2 =404.127, df = 228, CFI = .958, TLI= .949, RMSEA= .047, SRMR= .055). The results suggest that the bi-factor model is the best model that explains the latent structure of the FMWB, by comprehending each member's responses or perspectives as latent dimensions (fathers, mothers, children) of the FMWB More research is needed to obtain more validity evidences that could help justify correctly the scores obtained with this scale.</p>","PeriodicalId":46542,"journal":{"name":"International Journal of Psychological Research","volume":"18 1","pages":"21-29"},"PeriodicalIF":1.2,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12410223/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145151342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Guest Editorial. Interdisciplinary Approaches for Human Cognition: Expand ing Perspectives on the Mind.","authors":"Jaime A Riascos Salas, Vinícius Rosa Cota, Hernán Villota, Daniel Betancur Vasquez","doi":"10.21500/20112084.7351","DOIUrl":"https://doi.org/10.21500/20112084.7351","url":null,"abstract":"","PeriodicalId":46542,"journal":{"name":"International Journal of Psychological Research","volume":"17 2","pages":"1-2"},"PeriodicalIF":1.2,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11804123/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143383726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Voluntary Ethanol Intake and Anxiety Behavior in Wistar-Uis Rats.","authors":"Elizabeth T Mendoza, María Villada, Maria Carolina Velásquez-Martínez","doi":"10.21500/20112084.7060","DOIUrl":"https://doi.org/10.21500/20112084.7060","url":null,"abstract":"<p><p>Ethanol consumption is among the first five substances with higher risk associated with diseases, disability, and death in the world. Anxiety behavior has been linked to ethanol-addictive conduct. The aim of the present study was to evaluate three strains with differential anxiety behavior: a Wild-type strain; a \"Reactive\" strain, with an increase in anxiety-related behaviors; and a \"Non-Reactive\" strain, with lower anxiety-related behaviors, before and after the voluntary consumption of ethanol (10%) protocol. To evaluate anxiety, animals were exposed to the elevated plus-maze 24 h before and after the consumption protocol. On the voluntary consumption of ethanol protocol, the animals were exposed to a water and an ethanol bottle. The weight of the liquid consumed daily for 40 days was registered. Results: all strains increased ethanol vs water consumption: Wild-type: day 8; R: day 10; NR: day 31. Ethanol consumption reduced the number and percentage of open arms entries only on the Wild-type strain. Conclusion: anxiety can predispose to an increase in ethanol consumption and to the maintenance of anxiety-related behaviors.</p>","PeriodicalId":46542,"journal":{"name":"International Journal of Psychological Research","volume":"17 1","pages":"63-72"},"PeriodicalIF":1.2,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11456330/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142394169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gaslighting Exposure During Emerging Adulthood: Personality Traits and Vulnerability Paths.","authors":"Martina Bellomare, Vincenzo Giuseppe Genova, Paola Miano","doi":"10.21500/20112084.6306","DOIUrl":"https://doi.org/10.21500/20112084.6306","url":null,"abstract":"<p><p>Among the many forms of psychological violence, gaslighting is a particularly insidious manipulative behaviour that includes acts aimed at controlling and altering one's own partner's sensations, thoughts, actions, affective state, self-perception, and reality-testing. The purpose of this study was to evaluate the association between the experience of gaslighting and dysfunctional aspects of the partner's personality. Gaslighter personality facets were assessed using the Personality Inventory for DSM-5-Informant Form-Adult (PID-5-IRF), while gaslighting behaviours were assessed using a 25-item questionnaire, based on the three categories of glamour, good-guy, and intimidator (Stern, 2007). The sample was made up of a group of 177 Italian emerging adults aged between 19 and 26 (49.2% male, 50.8% female; M = 21.88, SD = 1.75), enrolled at University, who participated voluntarily in the research. In fact, none of them received any form of direct or indirect incentive. In our study, we applied a beta regression model mapping the Likert scale into the open interval (0,1). The main results show (a) good-guy gaslighting is positively associated with manipulativeness and negatively associated with deceitfulness; (b) glamour gaslighting has a negative association with separation insecurity and manipulativeness, but it is positively associated with irresponsibility; (c) intimidator gaslighting has a positive association with separation insecurity and distractibility and a negative association with eccentricity and perceptual dysregulation; (d) all three gaslighting categories are negatively associated with anhedonia and impulsivity. Based on what emerged from the data, aspects such as separation insecurity, irresponsibility, and distractibility can be seen as serious risk factors for gaslighting. For this reason, with regard to clinical implications, an early recognition of dysfunctional traits in potential abusers should be fostered in order to protect both potential abusers and their partner from aggressive conduct within an intimate relationship.</p>","PeriodicalId":46542,"journal":{"name":"International Journal of Psychological Research","volume":"17 1","pages":"29-39"},"PeriodicalIF":1.2,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11456334/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142394167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}