The Persistent Case of Major Depression: An Argument for Long-Term Treatment

According to psychotherapy outcome literature, treatments for major depressive disorder (MDD) yield impressive results. Study after study demonstrates the efficacy of brief, evidence-based interventions for depressed individuals. Nevertheless, MDD continues to exact a devastating toll on modern society. The World Health Organization has identified it as the leading cause of disability worldwide. This reality is surprising given the implications from the academic literature. A historical analysis of MDD treatment suggests that most people with MDD experienced complete remission and enhanced outcomes when long-term, psychodynamically influenced treatments prevailed. An analysis of the system that perpetuates the brief intervention model for MDD, managed care, is discussed. This analysis is followed by a case study that illustrates the harm managed care can do to patients with MDD who are not permitted treatment of longer duration. Implications and recommendations for psychologists to intervene at the micro and macro levels are discussed.     

Educational Hegemony,Traumatic Stress,and African American and Latino American Students

The authors use traumatic stress theory to develop an ecosystemic understanding of hegemony and systemic barriers to educational success for culturally diverse students. Scholarship on trauma and systemic oppression are applied to students' academic experiences, and recommendations for improving educational outcomes include assessing for and ameliorating trauma in educational settings. Los autores emplean teorías del estrés traumático para desarrollar un entendimiento ecosistemático de la hegemonía y las barreras sistémicas para el éxito académico de estudiantes culturalmente diversos. Se aplica el conjunto de las investigaciones sobre trauma y opresión sistémica a las experiencias académicas de los estudiantes, y las recomendaciones para mejorar el rendimiento educativo incluyen la evaluación y alivio de los niveles de trauma en entornos educativos.     

The Interactive Effects of Task and External Feedback on Practice Performance and Learning

The interactions of task and external feedback on practice performance and learning were examined. While external feedback was consistently beneficial to performance during practice, regardless of the availability of feedback from the task, it was detrimental to learning when the task provided little feedback. External feedback benefited learning only when feedback was also available from the task. In addition, task feedback benefited learning, partially due to its effects on error detection and correction skills. Results suggest the importance of examining the simultaneous provision of feedback from different sources, studying the role of task feedback in learning, and more cleanly assessing learning to avoid confounding it with transient performance improvements.     

Phase Transitions and Critical Fluctuations in Rhythmic Coordination of Ipsilateral Hand and Foot

Four subjects performed rhythmic movements of the ankle and the wrist in time with an auditory metronome, in two modes of coordination, antiphase and in-phase. The forearm was placed in either a prone or a supine position. When movements were prepared in the antiphase mode, spontaneous transitions to the in-phase mode, or to phase wandering were observed as metronome frequency was increased. When prepared in the in-phase mode, transitions between in-phase modes or to phase wandering were occasionally observed. Predicted signature features of nonequilbrium phase transitions were noted, including loss of stability and critical fluctuations. The stability of the movement patterns was determined by spatial (dependent upon the direction of movement) rather than anatomical (dependent on the coupling of specific muscle groups) constraints. The position of the forearm had no consistent bearing upon the variability of the phase relations between the limbs, the frequency of phase transitions, or the time of onset of transitions. These results are discussed with reference to the coordination dynamics (e.g., multistability, loss of stability) of multijoint movements.     

Patterns of Posttraumatic Stress Symptoms Among United States Air Force Combat Search and Rescue Personnel

U.S. Air Force (USAF) combat search and rescue (CSAR) aircrew and special duty rescue personnel are specially trained airmen with high levels of direct exposure to combat-related medical trauma. The purpose of this study was to explore the prevalence rate of CSAR military personnel meeting the Diagnostic and Statistical Manual of Mental Disorders (fifth edition; DSM–5) posttraumatic stress disorder (PTSD) symptom criteria. USAF CSAR aircrew (n = 128) and rescue personnel (n = 300) across multiple units participated in the study by completing a demographics survey and the PTSD checklist based on DSM–5. Fourteen participants endorsed a pattern of symptoms of moderate to extreme level of severity meeting PTSD diagnostic criteria. Recommendations are provided for line and medical leadership to optimize health and performance among CSAR personnel.     

Use of the frostig DTVP with economically disadvantaged children

This research dealt with the reliability and validity of the DTVP when used with a sample of economically disadvantaged, predominantly Negro children from a large eastern city. Regarding reliability, test-retest and split-half procedures were employed; for validity the test was correlated with intelligence and achievement measures. The authors concluded that (a) the total test values alone evidence the necessary reliability to be used with confidence for diagnostic purposes, and (b) the validity of the measure has not been sufficiently demonstrated.     

Advantages of rhythmic movements at resonance: minimal active degrees of freedom, minimal noise, and maximal predictability

Using time delay embedding, the authors applied phase space reconstruction to the time series of rhythmic movements of a hand-held pendulum. Subjects (N = 6) produced the manual oscillations about the wrist at the pendulum's resonant frequency and at a higher and a lower frequency. The number of active degrees of freedom required to capture the dynamics of the rhythmic behavior was 3 for the resonant frequency and 4 for each of the nonresonant frequencies. The residual high-dimensional noise was similarly lowest for the resonant frequency. Whereas 33% and 20%, respectively, of the vectors in the phase spaces of the dynamics higher and lower than resonance were unpredictable, only 12% were unpredictable at resonance. Finally, the predictability of the evolving dynamics extended farther into the future for oscillations at the resonant frequency. At resonance, the prediction horizon was 5 times farther than the prediction horizon for the higher than resonance behavior and 2.5 times farther than that for the lower than resonance behavior. The results suggest that, in pendular oscillations of a limb or limb segment, attunement of the central nervous system to the resonant frequency minimizes the variables to be controlled and maximizes the predictability of the rhythmic movement's chaotic dynamics.