Reorganization of functional and effective connectivity during real-time fMRI-BCI modulation of prosody processing

Mechanisms of cortical reorganization underlying the enhancement of speech processing have been poorly investigated. In the present study, we addressed changes in functional and effective connectivity induced in subjects who learned to deliberately increase activation in the right inferior frontal gyrus (rIFG), and improved their ability to identify emotional intonations by using a real-time fMRI Brain-Computer Interface. At the beginning of their training process, we observed a massive connectivity of the rIFG to a widespread network of frontal and temporal areas, which decreased and lateralized to the right hemisphere with practice. Volitional control of activation strengthened connectivity of this brain region to the right prefrontal cortex, whereas training increased its connectivity to bilateral precentral gyri. These findings suggest that changes of connectivity in a functionally specific manner play an important role in the enhancement of speech processing. Also, these findings support previous accounts suggesting that motor circuits play a role in the comprehension of speech.     

Competitive Memory Training for treating depression and rumination in depressed older adults: a randomized controlled trial

Although rumination is an important mediator of depressive symptoms, there is insufficient proof that an intervention that specifically targets rumination ameliorates the clinical condition of, depressed patients. This study investigates whether a time-limited cognitive behavioral intervention (Competitive Memory Training, or COMET for depressive rumination) is an effective treatment for depression and rumination. This intervention was tested in older adult depressed outpatients. A total of 93 patients (aged ≥65 years with major depression and suffering from rumination) were treated in small groups according to the COMET protocol in addition to their regular treatment. Patients were randomized to two treatment conditions: 7 weeks of COMET + treatment-as-usual (TAU) versus TAU only. COMET + TAU showed a significant improvement in depression and rumination compared with TAU alone. This study shows that the transdiagnostic COMET protocol for depressive rumination might also be successful in treating depression and rumination in older adults.     

From Autocracy to Empowerment: Teams with Shared Leadership Perceive their Coaches to be Better Leaders

Sports coaches often fear that empowering the players in their team would undermine their own leadership status. To investigate the legitimacy of this perception, we mapped the leadership structure within 64 sports teams (N = 840). The results highlight that the perceived leadership quality of the coaches is positively related to the density of their team's leadership networks (i.e., the average leadership qualities of all players). This finding held for task, motivational, social, and external leadership. The best coaches are thus the ones who adopt a shared leadership approach and who strengthen the leadership quality of their players.

Lay Summary

Sports coaches often feel that empowering the players in their teams undermines their own leadership status. This study investigates the legitimacy of this perception within 64 sports teams. Our findings provide evidence for the opposite view; by creating and developing leaders in their teams, coaches are perceived as better leaders themselves.     

Set as an Instance of a Real‐World Visual‐Cognitive Task

Complex problem solving is often an integration of perceptual processing and deliberate planning. But what balances these two processes, and how do novices differ from experts? We investigate the interplay between these two in the game of SET. This article investigates how people combine bottom‐up visual processes and top‐down planning to succeed in this game. Using combinatorial and mixed‐effect regression analysis of eye‐movement protocols and a cognitive model of a human player, we show that SET players deploy both bottom‐up and top‐down processes in parallel to accomplish the same task. The combination of competition and cooperation of both types of processes is a major factor of success in the game. Finally, we explore strategies players use during the game. Our findings suggest that within‐trial strategy shifts can occur without the need of explicit meta‐cognitive control, but rather implicitly as a result of evolving memory activations.     

The corona crisis unmasks prevailing social ideologies

This essay contrasts two visions of selfhood: the buffered, autonomous self, and the flexible, resonant self. The autonomous self, while robustly assertive and active, seeks to insulate itself from threats, thereby robbing it of vital connections to other selves and to nature. The resonant self, in contrast, risks more by standing in fluid relationships of resonance and dissonance with its social and natural environments. While the two stand in tension, a baptismal theology entails both elements of a sheltered self and a resonant self that remains flexible and responsive to the ups and downs of human experience. Conversely, even a secular-minded person will have access to important zones of resonance.