Enhancing students' well-being with a unified approach based on contextual behavioural science: A randomised experimental school-based intervention.

A new generation of interventions has begun to move towards principles of acceptance that deal with the context and function of psychological events. The aim of this paper is to analyse the effectiveness of a brief contextual behavioural intervention to improve the psychological well-being of secondary school students. This intervention represents a unified model with key processes based on contextual behavioural science, including Acceptance and Commitment Therapy (ACT) and Functional Analytic Psychotherapy (FAP). We conducted an intervention with 94 students (age range 17-19 years), randomly assigned to an experimental group (n = 50) or control group (n = 44). Participants took a pretest and post-test of distress, life satisfaction, psychological flexibility and mindfulness. The intervention consisted of three sessions of 1 h each. The results showed significant differences between the groups in distress and significant differences for the interaction (group × pre-post) in all the other variables. The intervention had greater benefits for girls than for boys. These results may provide a breakthrough, thus leading to a process of evidence-based therapies, which would be responsible for inducing psychological improvements in brief periods, in a population with an increasing risk of distress.

Cognitive Defusion as a Verbal Exercise: An Experimental Approach.

BACKGROUND: As one of the founding principles of Acceptance and Commitment Therapy (ACT), cognitive defusion is a contextual control of language, but it is not clear which behavioural process would allow such defusion. Two experiments are presented which analyse that process using a word repetition exercise. METHOD: Experiment 1 was performed with 30 randomised participants, using a factorial between-groups (4x2) with repeated measures design: Group 1 = milk-milk-milk exercise; 2 = emotional word repetition; 3 = milk-to-emotional word shaping; and 4 = control without intervention. Questionnaires were applied on thoughts, emotional regulation, and experiential avoidance, in addition to the evaluation of 20 images suggesting emotions. In Experiment 2, 78 participants were randomised using the same 4x2 design, and also 60 images with a proven emotional reactivity were used. RESULTS: Experiment 1 did not show changes in any of the variables, nor a decrease in emotional assessment, which should occur according to the theory behind ACT. In Experiment 2, no significant changes between the groups and no pre-post changes appeared, except in latency time. CONCLUSIONS: The lack of replication of the defusion process is discussed, along with the mixed results of other studies.

Meta-analysis of the Efficacy and Effectiveness of Parent Child Interaction Therapy (PCIT) for Child Behaviour Problems.

BACKGROUND: Parent-Child Interaction Therapy (PCIT) is a well-established treatment for behavioural, hyperactivity and oppositional-defiant problems in children. Previous meta-analyses are scarce, and they have tended to mix problems and measures. OBJECTIVE: A meta-analysis study was conducted with all available studies on PCIT (1980 to 2020) to determine its specific efficacy and effectiveness for child behavioural problems. METHOD: Selection from databases collected a total of 100 studies. The inclusion criteria were to compare PCIT in children with behavioural problems between 2 and 12 years of age; comparing groups and using standardized instruments. RESULTS: PCIT exhibited a significant mean effect size ( d = -0.87 [95% CI: -1.10, -0.63] versus control and/or treatment-as-usual groups, but the effect size was smaller and not significant in follow-ups ( d = -0.23 [95% CI: -0.49, 0.04]). The within-group studies, comparing versions of PCIT, also demonstrated a significant effect size ( d = -0.26 (95% CI: -0.43, -0.08), and in pre-post comparisons this effect was greater ( d = -1.40 [95% CI: -1.69, -1.10]). CONCLUSIONS: PCIT is an effective intervention for treating child behaviour problems such as disruptive, hyperactive, negative, and externalizing problems. It is supported by 40 years of experimental and clinical studies, and also by this meta-analysis.

Spanish Validation of the "Life Snapshot Inventory".

INTRODUCTION: The Life Snapshot Inventory (LSI) is a self-report instrument to measure the meaningful vital, personal, and social directions. It was created in the Functional Analytic Psychotherapy as a continuous evaluation of vital changes in areas of life (family, work, love, spirituality, sexuality, health, etc.). OBJECTIVE: The aim was to validate its psychometric characteristics for the first time. METHOD: This study involved 530 participants (average age 33 years), in a Spanish sample. The questionnaire has been compared with the Rosenberg Self-Esteem Scale (RSES) to obtain convergent validity. RESULTS: The results showed a high internal consistency (α = .93) and a correlation of .61, both statistically significant. The factorial analysis showed only one factor (43.56% of variance). In addition, it was sensitive to changes due to interventions, and made it possible to differentiate those people with vital problems. CONCLUSION: This questionnaire could be a helpful measure for healthcare and clinical contexts.

INTRODUCCIÓN: El Inventario de Instantánea Vital (Life Snapshot Inventory; LSI) es un instrumento de autoinforme para medir las direcciones sociales, personales y vitales significativas para el individuo. Se ha creado desde la Psicoterapia Analítica Funcional (FAP) como una evaluación continua de los cambios en diversas áreas de la vida de un individuo (familia, trabajo, amor, espiritualidad, sexualidad, salud, etc.). Objetivo: Validar por primera vez las características psicométricas de este instrumento. METODOLOGÍA: Este estudio implicó una muestra española donde participaron 530 personas (edad media 33 años). El cuestionario se ha comparado con la Escala de Autoestima de Rosenberg (RSES) para obtener validez convergente. RESULTADOS: Los resultados mostraron una alta fiabilidad como consistencia interna (α = .93) y una correlación de .61, ambas estadísticamente significativas. El análisis factorial mostró un único factor (43.56% de la varianza). Además, el instrumento fue sensible a los cambios originados por la intervención, y permitió diferenciar aquellas personas con problemas vitales. CONCLUSIÓN: Este cuestionario podría ser una medida de gran ayuda para utilizar en contextos clínicos y sanitarios.

[Treatment of a depressive disorder according to Functional Analytic Psychotherapy]. / Intervención en un trastorno depresivo mediante la Psicoterapia Analítica Funcional.

Treatment of a depressive disorder according to Functional Analytic Psychotherapy. This paper presents the analysis and treatment of a depressive disorder according to Functional Analytic Psychotherapy. This form of psychotherapy, which is based on the principles of radical behaviorism, makes functional use of verbal behavior, and is structured upon a therapeutic relationship that pays special attention to natural reinforcement and emphasises the events that may arise in the clinical context, and relates them to a natural context, shaping, and functional equivalence. The paper describes the case of a 40-year-old woman with major depressive disorder, and the functional conceptualization of the case according to this psychotherapy. The different phases of the treatment are described (17 sessions in total), with examples of the therapeutic relationship and of how the results were maintained in the long term. In addition to solving problems and making changes in the patient's daily life, the initial BDI-II score (29) dropped to 6 points after seven months, and remained at 8 points in the follow-up after 17 months.

Multimedia intervention for specific phobias: A clinical and experimental study.

BACKGROUND: Exposure is the treatment of choice for specific phobias. We present an experimental and clinical study on the efficacy of the progressive multimedia exposure procedure for specific phobias. METHOD: The sample size consisted of 36 individuals, 7 men and 29 women (mean age: 29 years old), with different types of specific phobias. A combined between-groups (3x4) with repeated measures design was used, including several follow-ups up to 3 years. Participants were assigned to different groups: Experimental (10), Waiting List (12), and Control (14). As an evaluation method, a Behavioural Avoidance Test (BAT) with subjective anxiety and heart rate was used for images and videos, plus general and specific anxiety questionnaires for each phobia. The intervention was carried out in four phases of multimedia exposure: photographs, videos, simulated stimuli, and real stimulation. RESULTS: Anxiety and avoidance were significantly reduced in the experimental group, with a very large effect size (between d = 1.37 and 5.37). There were no significant changes in either the Control Group or the Waiting List Group. CONCLUSIONS: The treatment had a clinically significant impact on the daily life of the participants. This multimedia procedure was shown to be effective and to use few resources, thus allowing it to always be adapted to the individual characteristics of the participants.

Creating a Computerized Instrument for the Assessment of Blood-Injury-Injection Phobia.

A new computerized instrument (the Multimedia Behavioral Avoidance Test, or MBAT) for blood-injury-injection phobia (BII) assessment is presented. Analogous stimuli such as images and videos can also elicit anxiety responses; thus, they can be used for the assessment of phobia. The MBAT was applied to participants via computer, and subjective anxiety responses and time latency were recorded. The MBAT was composed of 30 original images and 30 videos related to blood, injury and injections. The MBAT was compared with other pencil-and-paper questionnaires for BII phobia, and heart rate was also measured with a pulsioximeter. The participants included 160 students and professionals (34.5% males, 65.6% females; mean 28.6 years old). The results showed a high reliability for internal consistency in images and videos (α = .98 both), with a single factor that groups all the items. In addition, the MBAT had high concurrent validity (r = .78 to .85) with the different anxiety scales compared. The MBAT diagnosed 12 participants with possible BII phobia. It is a useful instrument in the assessment of this kind of phobia because it is easier and quicker than pencil-and-paper questionnaires, it uses more objective measurements, and it is useful in planning subsequent exposure with images and videos.

The efficacy of functional-analytic psychotherapy and acceptance and commitment therapy (FACT) for public employees.

BACKGROUND: The literature is replete with evidence regarding the impact of psychological distress in the workplace. Traditionally, worksite interventions to enhance mental health have been carried out in groups. This study aimed to implement a brief individual program in the workplace through the combination of Functional Analytic Psychotherapy (FAP) and Acceptance and Commitment Therapy (ACT) for Public Administration employees. METHOD: One hundred and six public employees from a Spanish city council completed pretest measures and forty-three met the inclusion criteria. The participants´ scores on distress, burnout, psychological flexibility, depression, anxiety and stress were examined in a pretest-posttest design with a waiting list control group and random assignment. Thirty-eight employees completed the intervention (FACT group= 19; Waiting list control group= 19). The intervention lasted three individual sessions using a protocol with the processes of FAP and ACT, resulting in a protocol named FACT. RESULTS: The FACT group showed statistically significant improvements in distress, burnout, psychological flexibility and anxiety compared with the waiting list control group. CONCLUSION: These results provide a breakthrough and initial support for the inclusion of FAP in the workplace along with the integration with brief ACT in individual sessions to improve employees’ mental health.

A Shaping Procedure to Modulate Two Cognitive Tasks to Improve a Sensorimotor Rhythm-Based Brain-Computer Interface System.

This study aimed to propose an adapted feedback using a psychological learning technique based on Skinner's shaping method to help the users to modulate two cognitive tasks (right-hand motor imagination and relaxed state) and improve better control in a Brain-Computer Interface. In the first experiment, a comparative study between performance in standard feedback (N = 9) and shaping method (N = 10) was conducted. The NASA Task Load Index questionnaire was applied to measure the user's workload. In the second experiment, a single case study was performed (N = 5) to verify the continuous learning by the shaping method. The first experiment showed significant interaction effect between sessions and group (F(1, 17) = 5.565; p = .031) which the shaping paradigm was applied. A second interaction effect demonstrates a higher performance increase in the relax state task with shaping procedure (F(1, 17) = 5. 038; p = .038). In NASA-TXL an interaction effect was obtained between the group and the cognitive task in Mental Demand (F(1, 17) = 6, 809; p = .018), Performance (F(1, 17) = 5, 725; p = .029), and Frustration (F(1, 17) = 9, 735; p = .006), no significance was found in Effort. In the second experiment, a trial-by-trial analysis shows an ascendant trend learning curve for the cognitive task with the lowest initial acquisition (relax state). The results suggest the effectiveness of the shaping procedure to modulate brain rhythms, improving mainly the cognitive task with greater initial difficulty and provide better interaction perception.

[Contributions and novelties from Functional Analytic Psychotherapy]. / Novedades y aportaciones desde la psicoterapia analítica funcional.

Functional Analytic Psychotherapy is based on the principles of radical behaviourism. It emphasises the impact of events occurring during therapeutic sessions, the therapist-client interaction context, functional equivalence of environments, natural reinforcement, and shaping by the therapist. Functional Analytic Psychotherapy makes use of both the basic principles of behaviour analysis: individual functional assessment and application of in vivo treatment. This paper analyses novelties and new contributions of this therapy. New contributions are classified in various categories: integration with other psychotherapies, improvement of therapeutic skills, methods for evaluation and data recording in therapy, its application to several clinical problems, and studies of its efficacy.

Concentration on performance with P300-based BCI systems: a matter of interface features.

People who suffer from severe motor disabilities have difficulties to communicate with others or to interact with their environment using natural, i.e., muscular channels. These limitations can be overcome to some extent by using brain-computer interfaces (BCIs), because such systems allow users to communicate on the basis of their brain activity only. Among the several types of BCIs for spelling purposes, those that rely on the P300 event related potential-P300-based spellers-are chosen preferentially due to their high reliability. However, they demand from the user to sustain his/her attention to the desired character over a relatively long period of time. Therefore, the user's capacity to concentrate can affect his/her performance with a P300-based speller. The aim of this study was to test this hypothesis using three different interfaces: one based on the classic P300 speller paradigm, another also based on that speller but including a word predictor, and a third one that was based on the T9 interface developed for mobile phones. User performance was assessed by measuring the time to complete a spelling task and the accuracy of character selection. The d2 test was applied to assess attention and concentration. Sample (N = 14) was divided into two groups basing on of concentration scores. As a result, performance was better with the predictor-enriched interfaces: less time was needed to solve the task and participants made fewer errors (p < .05). There were also significant effects of concentration (p < .05) on performance with the standard P300 speller. In conclusion, the performance of those users with lower concentration level can be improved by providing BCIs with more interactive interfaces. These findings provide substantial evidence in order to highlight the impact of psychological features on BCI performance and should be taken into account for future assistive technology systems.

Detección de problemas alimentarios y su relación con hábitos alimentarios en adolescentes / Detection of eating problems and their relationship with eating habits in adolescents

Resumen El propósito de este trabajo fue hacer la detección de probables casos de trastornos de la conducta alimentaria (TCA) en adolescentes, así como analizar su relación con los hábitos alimentarios (HA) dentro del contexto escolar. Participaron 3,144 alumnos/as (49.7% chicas y 50.3% chicos), con edades entre 13 y 17 años (M = 14.41, DE = 0.79). Fueron registradas distintas variables: sociodemográficas, índice de masa corporal (IMC) e ingesta alimentaria, además de aplicar el Cuestionario de Actitudes Alimentarias (EAT-40) y el Cuestionario de Imagen Corporal (BSQ). Se identificaron diferencias significativas en EAT-40 y BSQ, con una mayor proporción de chicas vs. chicos que superaron el punto de corte. Respecto al IMC, aunque la mayoría estaba en normopeso, el 17.6% tuvo infrapeso, 20.4% sobrepeso y 7.1% obesidad. El 5.6% de todos los participantes fueron identificados como probables casos de TCA, con una mayor proporción de mujeres (9.6%) que de hombres (1.8%). No hubo correlación con los HA, pero sí mayor proporción de chicas que consumían menos alimentos y bebidas durante el desayuno y el recreo. Un dato alarmante es que 5.6% de las chicas y 2.5% de los chicos no consumían nada durante toda la mañana escolar.

Abstract A study of detection of probable cases of eating disorders (ED) in teenagers, studying their possible relationship with their dietary habits (DH) in the school context has been carried out. The participants were 3,144 students (49.7 % girls and 50.3 % boys) aged between 13 and 17 years old (M = 14.41, SD = 0.79). Different variables were recorded: sociodemographic, body mass index (BMI) and dietary intake, in addition to applying the Eating Attitudes Questionnaire (EAT-40) and the Body Shape Questionnaire (BSQ). Significant differences were identified in EAT-40 and BSQ, with a greater proportion of girls vs. boys exceeding the cut-off point. Regarding the BMI, although most were in normal weight, the 17.6% were underweight, 20.4% overweight and 7.1% obese. Based on all the data, 5.6% of all participants were identified as probable cases of ED, with a higher proportion of women (9.6%) that men (1.8%). There was no correlation with DH, but there were a higher proportion of girls who consumed less food and beverages during breakfast and recess. An alarming fact is that 5.6% of girls and 2.5% of boys did not consume anything during the whole school time.

Psychometric properties of the Spanish version of the Experiencing of Self Scale (EOSS) for assessment in Functional Analytic Psychotherapy.

BACKGROUND: The Experiencing of Self Scale (EOSS) was created to evaluate the experience of the personal self, within the field of Functional Analytic Psychotherapy. This paper presents a study of the reliability and validity of the EOSS in a Spanish sample. METHOD: The study sample, chosen from 24 different centres, comprised 1,040 participants aged between 18-75, of whom 32% were men and 68% women. The clinical sample was made up of 32.7%, whereas 67.3% had no known problem. To obtain evidence of convergent validity, other questionnaires related to the self (EPQ-R, DES, RSES) were used for comparison. RESULTS: The EOSS showed high internal consistency (Cronbach's α = .941) and significantly high correlations with the EPQ-R Neuroticism scale and the DES Dissociation scale, while showing negative correlations with the Rosenberg Self-Esteem Scale (RSES). The EOSS revealed 4 principal factors: a self in close relationships, a self with casual social relationships, a self in general and a positive self-concept. Significant statistical differences were found between the clinical and standard sample, the former showing a higher average. CONCLUSIONS: The EOSS had high internal consistency, showing evidence of convergent validity with similar scales and proving useful for the assessment of people with psychological problems related to the self.

An experimental analysis of obsessive-compulsive checking as avoidance behaviour.

BACKGROUND: Many explanatory models of obsessive-compulsive disorders (OCD) support the idea that compulsive behaviours are an attempt to avoid an aversive situation. There are few experimental studies carried out on the onset of repetitive behaviours. This study tries to create a repetitive checking behaviour as an analogue explaining similar OCD behaviours. METHOD: An inter-group design with 3 levels of aversion (minimal, progressive and maximum) in a visuo-spatial reasoning task was used. 48 university students without OCD problems (mean= 23 years old) were the participants, randomly distributed in 16 per group. Checking frequency (semi-hidden chronometer) for each task was measured and the questionnaires TONI-2, STAI, MOCI and YBOCS-SR were applied. RESULTS: Participants with a minimal or maximum level difficulty showed a significantly higher level of checking behaviour than those in the progressive difficulty. The differences occurred between the minimal and the progressive group, and between the minimal and maximum difficulty. There were no differences in any other variable. CONCLUSION: In this analogue, the continuous checking of a chronometer was reinforced by the elimination of boring tasks. The momentary escape from an aversive situation explains the checking behaviour. This study could be an experimental analogue of checking behaviour, showing its avoidance function.

[Generalization of money-handling though training in equivalence relationships]. / Generalización en el manejo del dinero mediante un entrenamiento en relaciones de equivalencia.

This research used a matching-to-sample procedure and equivalence learning process with language and verbal tasks. In the study, an application of the equivalence relationship of money was used with several kinds of euro coins presented. The sample consisted of 16 children (8 in the experimental group and 8 in the control group) aged 5 years. The prerequisite behaviors, the identification of coins and the practical use of different euro coins, were assessed in the pre and post phases for both groups. The children in the experimental group performed an equivalence task using the matching-to-sample procedure. This consisted of a stimulus sample and four matching stimuli, using a series of euro coins with equivalent value in each set. The children in the control group did not undergo this training process. The results showed a large variability in the children's data of the equivalence tests. The experimental group showed the greatest pre and post changes in the statistically significant data. They also showed a greater generalization in the identification of money and in the use of euro coins than the control group. The implications for educational training and the characteristics of the procedure used here for coin equivalence are discussed.

[Psychological variables in the control of brain-computer interfaces]. / Variables psicológicas en el control de interfaces cerebro-computadora.

BCI (Brain-Computer Interface) is a system that allows interaction between the human brain and a computer. It is based on analyzing electroencephalographic signals (EEG) and processing them to generate control commands. The study analyzed the possible influence of psychological variables, such as the imaginative kinesthetic capacity and anxiety, in relation to performance in a BCI. All participants (4 male and 19 female students) completed the questionnaires and carried out a session of BCI to control their EEG signals in a virtual setting of a car along a straight road. The group was divided into two subgroups according to their EEG signals or differential responses obtained in the left-right discrimination. Study results showed no significant differences in cognitive variables of imagination or in anxiety. By comparing the degree of participants' BCI control, a new quantitative parameter for comparing performances and making decisions in signal processing was found. The findings, the ongoing research process to refine the control of a BCI, and the interaction of psychological and computer procedures are discussed.

Brain-computer interface: proposal of a shaping-based training

INTRODUCTION: Persons affected by certain motor disabilities such as amyotrophic lateral sclerosis can evolve with important motor and speech difficulties in communication. A BCI (Brain Computer Interface) is a system that allows interaction between the human brain and a computer, permitting the user to control a communication channel through his or her brain activity. It is based on the analysis and processing of electroencephalographic (EEG) signals to generate control commands. The present study focuses on the subjects' capability to improve the way they learn to control a BCI system. METHODS: Two training procedures were compared: standard and progressive shaping response. Six volunteers participated in a reversal single-subject ABAC design. RESULTS: The study showed that both procedures are equally effective in producing a differential responding in the EEG signals, with no significant differences between them. Nevertheless, there were significant differences when distinguishing two neuronal responses (relax state and hand-movement imagination). Also, in the analysis of individual signals, an adaptive process for the shaping process and a lower error rate in the idle response appeared. CONCLUSION: Both proposed training procedures, standard and progressive shaping, are equally effective to achieve training of differential responses (imagination of hand/relax) in the interaction with a BCI.