Arnoldo Téllez

Background. Adverse Childhood Experiences (ACEs) refer to a semantic field of negative childhood events that, in conjunction with insufficient personal, family, or contextual coping resources, have the potential of becoming traumatic.

Objective. To assess the prevalence of Adverse Childhood Experiences (ACEs) and their association with sociodemographic variables and physical and mental illnesses in a Mexican sample.

  Design. A cross-sectional design was used. The sample included 917 Mexican adults who responded to the Adverse Childhood Experiences International Questionnaire (ACE-IQ). Most of the participants were female (79.3%) with an average age of 37 years, a monthly income between 500 and 2,500 USD (59.2%), had completed university education (45.6%) and were married or in a common-law marriage (53.1%). Data was collected through Google Forms, and the link to the form was shared through electronic social networks.

  Results. A total of 48.3% of the participants presented seven to nine types of ACEs. Among their responses, the most prevalent categories were emotional neglect (95.1%), family violence (83.3%), and emotional abuse (78.6%). A significant association was found between the number of ACEs and the mental illness diagnosis (x²(20) = 15.16; p < .001). Women were found to report more experiences of sexual abuse (z = -6.62, p < .001), whereas men reported more experiences of community violence (z = -4.27, p < .001) and collective violence (z = -3.94, p < .001).

  Conclusions. The prevalence of ACEs in the Mexican population is high. However, men and women reported differences in certain types of ACEs. It was found that people with a diagnosis and family history of mental illnesses presented a higher number of ACE categories.

Background. The need to evaluate the emotional changes women experience during the diagnostic stage of breast cancer creates the need for easily applicable short screening tools; thus, evaluations which rely on a single question and visual analogical scales are widely used in hospital environments.

Objective. This study aimed to determine the optimal cut-off points for anxiety, depression, and stress emotional thermometers measured against the Hospital Anxiety and Depression Scale anxiety and depression sub-scales (HADS-A and HADS-D), and the Cohen Perceived Stress Scale-14, respectively; in addition, the study aimed to evaluate the prevalence of these changes in women scheduled for breast biopsies.

Design. The study included 221 women who were scheduled for breast biopsies; their agesranged between28 and80 years old. They were individually evaluated using the Emotional Thermometers, the HADS-A, theHADS-D, and the PSS-14 before undergoingtheir biopsies. Data from 203 participants were analyzed.

Results. The following optimal cut-off points were obtained: 3 for the anxiety emotional thermometer (ET) (sensitivity 0.71, specificity 0.25); 3 for the depression ET (sensitivity 0.87, specificity 0.34); and 4 for the stress ET(sensitivity 0.80, specificity 0.43). According to these cut-off points, 56% of the patients exhibited anxiety, 40% exhibited depression, and 55% exhibited stress. 

Conclusion. Using emotional thermometers to screen anxiety, depression, and stress is therefore recommended in the context of breast biopsies.

Background: Cancer incidence and mortality in young Latin American women has increased over the last few decades. In Mexico, breast self-examination (BSE) is recommended from 20 years of age to create awareness of breast cancer and detect body changes. The health belief model (HBM) allows us to identify young women’s beliefs about cancer and BSE, which could help us to design more appropriate strategies to promote BSE in the fight against breast cancer.

Objective: To assess the knowledge, practice, and beliefs about cancer and BSE in female college students; examine the differences between those who practice BSE and those who do not; and determine the most influential variable for performing BSE. 

Design: A descriptive cross-sectional design was used; the Health Belief Model scale for BSE was applied to 949 female college students from a public university.

Results: Major health study field suffered benign breast disease and having a family history of breast cancer was associated with BSE performance; also the dimensions of the health beliefs model such as barriers, benefits, self-efficacy and health motivation were different between women who perform an BSE in. The predicting variables for BSE practice were self-efficacy, the barriers perceived, benign breast disease, and the major subject of  study.

Conclusion: Reports of BSE practice in female students from Latin American countries are similar; however, the predictive variables differ from those found in the general population. Perceived barriers and self-efficacy are factors capable of  modification, and must be addressed by BSE promotion strategies aimed at female college students.

Background. Cancer is a chronic disease that significantly affects the quality of life of patients who suffer from it, because they must face stressful situations, including their diagnosis, surgical procedures, and the adverse effects of chemotherapy and radiotherapy. 

Objective. To evaluate the effects of hypnotherapy on breast cancer patients’ quality of life during chemotherapy. 

Design. A quasi-experimental design was used with a convenience sample. Method. Two groups of patients with early breast cancer diagnoses were assigned to either a control group that received standard medical care (n = 20), or a hypnotherapy group (n = 20) that received 12 intensive sessions over the course of 1 month, and 12 additional sessions over the course of 6 months. The patients’ quality of life was evaluated using the European Organization for the Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30). 

Results. The hypnotherapy group showed a statistically significant improvement and a large effect size on the cognitive functioning and social functioning scales compared to the control group. The physical functioning, role functioning, and quality of life scales showed improvement with a medium effect size, but the changes were not statistically significant. 

Conclusion. The improvement observed in the cognitive functioning and social functioning scales allows us to suggest that hypnotherapy improves the quality of life of breast cancer patients during chemotherapy.

Traditionally, neuropsychology has focused on identifying the brain mechanisms of specific psychological processes, such as attention, motor skills, perception, memory, language, and consciousness, as well as their corresponding disorders. However, there are psychological processes that have received little attention in this field, such as dreaming. This study examined the clinical and experimental neuropsychological research relevant to dreaming, ranging from sleep disorders in patients with brain damage, to brain functioning during REM sleep, using different methods of brain imaging. These findings were analyzed within the framework of Luria’s Three Functional Unit Model of the Brain, and a proposal was made to explain certain of the essential characteristics of dreaming. This explanation describes how, during dreaming, an activation of the First Functional Unit occurs, comprising the reticular formation of the brainstem; this activates, in turn, the Second Functional Unit — which is formed by the parietal, occipital, and temporal lobes and Unit L, which is comprised of the limbic system, as well as simultaneous hypo-functioning of the Third Functional Unit (frontal lobe). This activity produces a perception of hallucinatory images of various sensory modes, as well as a lack of inhibition, a non-selfreflexive thought process, and a lack of planning and direction of such oneiric images. Dreaming is considered a type of natural confabulation, similar to the one that occurs in patients with frontal lobe damage or schizophrenia. The study also suggests that the confabulatory, bizarre, and impulsive nature of dreaming has a function in the cognitiveemotional homeostasis that aids proper brain function throughout the day.

Quantitative psychological research is focused on detecting the occurrence of certain population phenomena by analyzing data from a sample, and statistics is a particularly helpful mathematical tool that is used by researchers to evaluate hypotheses and make decisions to accept or reject such hypotheses. In this paper, the various statistical tools in psychological research are reviewed. The limitations of null hypothesis significance testing (NHST) and the advantages of using effect size and its respective confidence intervals are explained, as the latter two measurements can provide important information about the results of a study. These measurements also can facilitate data interpretation and easily detect trivial effects, enabling researchers to make decisions in a more clinically relevant fashion. Moreover, it is recommended to establish an appropriate sample size by calculating the optimum statistical power at the moment that the research is designed. Psychological journal editors are encouraged to follow APA recommendations strictly and ask authors of original research studies to report the effect size, its confidence intervals, statistical power and, when required, any measure of clinical significance. Additionally, we must account for the teaching of statistics at the graduate level. At that level, students do not receive sufficient information concerning the importance of using different types of effect sizes and their confidence intervals according to the different types of research designs; instead, most of the information is focused on the various tools of NHST.

Background. The diagnosis and treatment of colorectal cancer are considered highly stressful and potentially traumatic events that can generate post-traumatic stress symptoms and distress among patients.

Objective. This study assessed levels of post-traumatic stress symptoms, distress, and optimism, as well as differences between these conditions relative to sociodemographic and medical variables, in Mexican patients with colorectal cancer.

Design. A cross-sectional descriptive study design was employed, in which 192 colorectal cancer patients over the age of 18 years participated. They filled out the following questionnaires in person: a sociodemographic and medical data questionnaire; the Event Impact Scale-Revised (EIE-R); the Hospital Anxiety and Depression Scale (HADS); and the Life Orientation Test (LOT-R).

Results. The results showed that 32.3% of the patients reported post-traumatic stress symptomatology, and 21.4% reported distress. Post-traumatic stress symptoms and distress varied according to age and monthly income. Significant differences between the sexes were also observed in the levels of post-traumatic stress symptoms and distress. Post-traumatic stress was positively and significantly related to distress, and negatively and significantly to optimism.

Conclusion. Based on these data, we concluded that a significant percentage of colorectal cancer patients present high levels of post-traumatic stress symptoms as well as distress, and that these levels may vary according to sociodemographic and medical characteristics.