El constructo ansiedad en Psicología: una revisión

RESUMEN

Se trata en este artículo de dar una visión sucinta y comprensiva del tratamiento que, desde el ámbito de la Psicología científica, ha recibido el tema de la ansiedad. Casi todas las escuelas, tanto clínicas como experimentales, han intentado dar una explicación, cada cual con su método y de sus principios teóricos a este complejo fenómeno. Aquí se analizarán cuatro enfoques: Psicodinámica y humanística; Experimental motivacional; Psicométrico-factorial; Cognitivo-conductual. También se presenta, al final, de modo sintético, un resumen que trata de integrar las diferentes aportaciones que se han producido en el desarrollo del estudio científico del tema ansiedad.     

Cognitive-behavioral treatment and antidepressants combined with virtual reality exposure for patients with chronic agoraphobia

In this study we compared the efficacy of virtual reality exposure combined with cognitive-behavioral therapy (VRET) to that of traditional cognitive-behavioral therapy (CBT) alone in reducing phobic symptoms in a sample of patients with long-term agoraphobia. The study was a between-subject design with three experimental conditions (VRET group, N = 30; CBT group, N = 30; and medication only group, N = 20) and repeated measures (pre-treatment, post-treatment, and six-month follow-up). All patients were receiving antidepressant medication. Results showed that all therapies were statistically effective both at post-treatment and six-month follow-up. The VRET group showed clinical improvement in most variables measured at follow-up. The CBT group showed the highest dropout rates. These results are discussed pointing out that VRET probably serves as an intermediate procedure for an efficient exposure to phobic stimuli. Besides describing the advantages of VRET for the treatment of agoraphobia symptoms in cost-benefit terms, the study also considered issues related to higher treatment adherence and motivation.     

Procesos de aprendizaje y terapia de conducta en la adicción a la heroína

Resumen

Múltiples principios de condicionamiento clásico y operante interaccionan en la adición a la heroína. Destacan la presencia de RC Compensatorias en forma de Síndrome de Abstinencia Condicionado (SAC) y distintos programas de reforzamiento en el estilo de vida, argot y efectos de la heroína. En evaluación conductual se estudian los correlatos subjetivos y psicofisiológicos del SAC; la validez externa de los autorregistros se logra mediante análisis de orina. En terapia de conducta los programas de amplio espectro se combinan con la intervención comunitaria y apoyo médico. A nivel metodológico se resalta la necesidad de usar múltiples criterios de medición, introducción del análisis multivariado y uso de diseños estadísticos, realización de seguimientos a largo plazo.     

Effectiveness of therapy group in women with localized breast cancer

Background/ObjectiveBreast cancer causes high levels of anxiety and depression, deteriorating quality of life of patients. Several studies have found that group therapy reduces depression and anxiety also improves the quality of life. The aim of this study is to analyze group therapy effectiveness in emotional state and quality of life in women with breast cancer after finalized medical treatments.MethodParticipants in this study were 100 adult women diagnosed of breast cancer non-mestastasic and were divided into two types of intervention groups (Self-esteem-Social Skills and Cognitive-Behavioral Therapy). Evaluation instruments were questionnaire Functional Assessment of Breast-cancer Therapy (FACT-B) and Hospital Anxiety and Depression Scale (HADS).ResultsA statistically significant effect of group therapy in reducing anxiety and depression were observed. Quality of life and emotional well-being significantly improved. These effects remain three months after intervention.ConclusionsThe results show that the psychological intervention group is efficient to improve emotional state and quality of life of women with breast cancer.     

Transcranial Direct Current Stimulation improves word production in Conduction Aphasia: Electroencephalographic and behavioral evidences

A Conduction Aphasic patient, RH, with many difficulties at the level of phonological output, was subjected to Transcranial Direct Current Stimulation (tDCS) therapy six months after suffering a stroke. Fifteen daily sessions were administered (five days per week). The treatment led to a better intra-hemispheric electrical coherence and inter-hemispheric balance, as shown by the quantitative EEG analysis. Transcranial Direct Current Stimulation therapy was shown to be effective in inhibiting irregular activation of the right hemisphere, offering the healthy areas of the left hemisphere the possibility of reassuming their linguistic processing abilities. Also, the number of errors in picture naming and repetition of words and pseudowords dropped considerably following treatment. The recovery was greater for long stimuli and was not affected by semantic or lexical variables such as familiarity. These results suggest that the Phonological Output Buffer, a mechanism dedicated to the maintenance, ordering and production of phoneme strings, was the processing stage modified by the treatment.