Sistema Regional de Información
en línea para Revistas Científicas de América Latina,
el Caribe, España y Portugal

A literature review was conducted focusing on the history of behavior analysis by Lattal and his colleagues. Three intertwined themes on the history of apparatus, biographical research, and an underlying pedagogical aim were identified. Within these themes, it was evident that the scholarship of Lattal within the history of behavior analysis has contributed to the internationalization of the field. The literature review was complemented with a semi-structured interview with Lattal. Overall, the breadth of topics within the history of behavior analysis by Lattal and colleagues spans 11 categories described by Guimarães and de Mello (2023) that may be unified with by their pedagogical purpose. It is concluded that Lattal’s approach to research and teaching consistently integrates historical content and context.

Aubrey C. Daniels died on March 1, 2025, at age 89. While his passing was not unexpected, I was struck by how dim the morning light appeared out my window.  Another giant of our field was gone. He was my colleague, a professional partner, and a friend. He wanted the world to see what could come from the science of behavior that he loved.

To honor Andy's role as a teacher and mentor, I have curated a series of memories from my history as a graduate student in the Behavior Analysis graduate program at West Virginia University (WVU) from 2003–2008. This sort of epilogue aims to highlight the broad, general, and flexible nature of conducting research and learning with Andy at WVU. 

This study reanalyzes the Latency-Based Interview-Informed Synthesized Contingency Analysis (IISCA) as a more efficient alternative to the traditional Rate-Based IISCA for assessing challenging behaviors in neurodivergent populations. Functional analysis is a gold standard in Applied Behavior Analysis (ABA), yet conventional rate-based methods often require repeated exposures to challenging behavior, raising ethical concerns regarding safety and trauma. Latency-based IISCA offers a solution by focusing on the time to the first response rather than the response rate, thereby reducing exposure to evocative situations. This research builds upon prior findings with Brazilian participants, extending the approach to a U.S. cohort with autism and other developmental disabilities. Results demonstrated consistent functional control across both groups, with latency-based IISCA strongly aligning with rate-based outcomes, reducing analysis duration by 51% and behavioral occurrences by 86%. Evaluations by expert researchers indicated that the latency-based IISCA was safe, effective, and socially valid, with high ratings for acceptability and efficiency. These findings highlight the generalizability of latency-based IISCA, supporting its adoption as a potentially more compassionate assessment method that prioritizes client well-being while maintaining analytic rigor.

En este 2025 celebramos con orgullo y emoción el cincuentenario de la Sociedad Mexicana de Análisis de la Conducta (SMAC). Fundada en 1975, la SMAC ha sido un referente para el desarrollo, la enseñanza y la divulgación del análisis de la conducta en México, aspiraciones que están consagradas en su acta constitutiva, a saber: a) Difundir el conocimiento del análisis de la conducta entre los profesionales de la Psicología y disciplinas afines; b) Publicar la Revista Mexicana de Análisis de la Conducta; c) Organizar seminarios, congresos y eventos científicos que promuevan la comunicación entre los especialistas en análisis de la conducta en México; d) Establecer vínculos con asociaciones semejantes en México y en el extranjero; e) Asesorar instituciones, organismos y asociaciones sobre asuntos relacionados con el análisis de la conducta.

This manuscript argues that dissociative identity disorder (DID) can be thought of as a label for specific behavior changes, and behaviors of this disorder are likely controlled by social contingencies of positive and negative reinforcement. The evolution of the relevant concept of multiple personality disorder, now referred to as dissociative identity disorder, through various editions of the Diagnostic and Statistical Manual of Mental Disorders (the DSM) is reviewed. This manuscript proposes that DID primarily consists of changes in the verbal behaviors of tacting, intraverbals, and the prosody of speech, which resembles a descriptive autoclitic. In addition, this paper reviews the two competing models of the behaviors given the diagnostic label of dissociative identity disorder, the Post-Trauma Model (PTM) and the Social-Cognitive Model (SCM). A review of published treatments that employed behavioral methods is discussed, as well as recommendations for the means to conceptualize disorders such as DID better.

The effect of adding the diet with dried and ground leaves of Larrea tridentata (LT) as a natural feed additive was evaluated in broilers on productive development, weight and lesions of digestive organs, and serum concentration of liver enzymes. To do this, 200 one-day-old chicks were used and fed with commercial feed with LT in doses of 0, 5, 10, and 15 g kg-1 of feed. The productive evaluation lasted seven weeks and recorded live weight and feed intake. At the end, the animals were slaughtered, blood was collected, and the weight of the crop, gizzard, cecum, and duodenum was recorded. Broilers that consumed feed with 5 and 10 g LT showed improvement (P<0.05) in weight gain and feed conversion and a reduction (P<0.05) in serum concentrations of alanine amino transferase, alkaline phosphatase, and aspartate amino transferase compared to broilers that did not consume LT. The weight of the digestive organs was not affected by LT and no apparent macroscopic lesions were observed. The LT dose that  had the greatest beneficial  effect on the productive  variables  was 10 g kg-1. Therefore, it is concluded that adding 10 g of LT leaves per kilogram of feed improves the productive response in broilers, possibly as a response to the fact that nordihydroguaiaretic acid reduces liver enzymes, exerting a hepatoprotective effect.

The ecosystem of the Chaco region in Bolivia is in a fragile state for productive activities. One of the causes is overgrazing, which limits its sustainable development. The objective was to evaluate the environmental impact of semi-intensive (SIFS) and extensive (EFS) cattle farming systems in the municipality of Macharetí, in the Chaco region of Bolivia. The evaluation was conducted using 16 environmental indicators in both livestock production systems, which were compared using analysis of variance for a completely randomized design and multiple mean comparisons (P<0.05). The SIFS involves a larger cattle population and higher milk production due to better management; it also includes a greater number of plant species; however, it shares 90 % of these with the EFS. The SIFS has a lower environmental impact, with lower emissions of greenhouse gases and degradation of native vegetation and soil. In general, the SIFS has a higher carbon content (71.1 t C/ha) in its various reservoirs compared to the EFS (60.7 t C/ha) (P<0.05). The type of livestock management is a determining factor in the regeneration of natural vegetation, particularly of forage species, due to the type of grazing that occurs in this region.

Beekeeping is socioeconomically and ecologically important as it generates income and jobs while benefiting agriculture and the environment. A classification and description of beekeepers in the state of Chihuahua, Mexico, was done by analyzing the results of a beekeeper survey. Sixty beekeepers from twelve municipalities in the state were surveyed from November 2021 to May 2022. Principal component factor analysis (PCA), hierarchical and K-means cluster analysis (CA), and discriminant analysis (DA) were applied to the results using eight descriptive variables and five indices. Three groups of beekeepers were identified with the CA: small beekeepers (47 % of total), medium beekeepers (42 %), and large beekeepers (11 %). These were distinguished mainly by the number of apiaries and hives owned by producers. No significant differences were observed in a technical management index, but values in indices representing basic and specialized management, and genetic and nutrition were higher than those in other honey-producing regions in Mexico. The proposed beekeeper classification is potentially useful in designing strategies and actions to strengthen and promote beekeeping in Chihuahua.

Two continuous experiments were established to evaluate the productive response, blood parameters, meat quality, and myoglobin (Mb) content in the Longissimus dorsi (LD) and Psoas major (PM) muscles of pigs after the use of iron (Fe): Exp-1, Fe supplementation in the diet of sows, and the application of iron dextran (FeD) in their offspring, and Exp-2, Fe supplementation during the growth-fattening of pigs. Exp-1, supplemental Fe in sows did not alter their blood parameters (≈10 % of anemic sows, Hb= 11.55 ± 1.281 g/dL) and productive parameters. Piglets were born deficient in Fe (Hb= 10.04 ± 1.418 g/dL), and there was an increase in the presence of anemic pigs on the third day to wean ≈40 % of the population with Hb<10 g/dL after applying FeD. In Exp-2, the lack of Fe supplementation did not alter the productive performance and the Hb level (P>0.30). Nonetheless, continuous Fe supplementation to pigs affected (P<0.02) the lightness (L*), lipid oxidation (TBARS), and protein oxidation (met-myoglobin) of PM meat and drip water loss in LD. Apparently, the Fe contribution of the ingredients was sufficient to correct postweaning anemia (Hb= 13.63 ± 1.059 g/dL, <5 % Fe-deficient animals). The Mb content (LD= 1.23 ± 0.384 and PM= 1.40 ± 0.301 mg/g) was the same for any state of anemia or use of dietary Fe. Therefore, Fe supplementation must be adjusted to the contribution of the ingredients and to the prevention of oxidative processes in meat.