NeuroBLOG

*Emerging trends in neuroscience* Key Points: • In this 4-week randomized controlled study, both VR-based biofeedback and conventional therapist-guided biofeedback improved subjective sleep quality in adults with depressive symptoms, anxiety symptoms, or both. • VR did not outperform conventional biofeedback on the primary sleep outcome, despite the intuitive appeal of immersive delivery. • The clinical signal is encouraging, but interpretation should remain cautious because the study was open-label, used self-report sleep outcomes, and leaves some ambiguity about what the “biofeedback” component in the VR condition actually consisted of.

*Emerging trends in neuroscience* Key points : • In combat sports, performance improves when aggression stays goal-directed (instrumental) rather than anger-driven (hostile). • Cognitive reappraisal, mindfulness-based training, and arousal control strategies are consistently linked to better decision-making and execution under pressure. • Multimodal approaches that combine cognitive skills with physiological regulation (notably heart rate variability biofeedback) show the largest gains in emotional regulation and performance.

*From the archives* Key Points: • Participants receiving real individual upper alpha (IUA) neurofeedback increased IUA activity during training more than those receiving sham feedback, but group-level resting-state changes were subtle. • The learning rate (how quickly IUA increased across training) mattered: faster learners showed larger gains in post-training resting-state IUA and fewer mental-rotation errors. • Letting people self-pace rest breaks improved higher-level executive performance (Trail Making Test Part B) more than an externally paced schedule.

*Emerging trends in neuroscience* Key Points: • Heart rate variability (HRV) offers a practical, non-invasive window into autonomic regulation that can track stress, cognitive load, recovery, and health risk in pilots and astronauts. • In aviation settings, short-term HRV metrics that closely reflect vagal tone (especially RMSSD and HF-HRV) are emphasized for feasibility, including potential monitoring via validated wearables. • HRV is promising for training and safety (simulation, workload, startle/surprise responses), but interpretation requires careful attention to confounds, measurement quality, respiration, and population-specific norms.

*Brendan’s perspective* Key Points: • Neurofeedback is exciting because it sits at the intersection of neuroscience, learning, and lived experience—but that same excitement creates a “credibility gold rush” where marketing often outruns method, and confidence outruns competence. • In an emerging field, ambiguity becomes a business model. When standards are still being negotiated, opportunists can borrow the language of science (“neuro,” “self-regulation,” “objectivity”) to sell certainty, identity, and belonging—often to the very people least able to evaluate claims. • The real fight isn’t neurofeedback vs. skeptics—it’s neurofeedback vs. internal dilution. If we want this field to mature, we have to call out pseudoscience, credential laundering, and manipulative training funnels that damage public trust and put vulnerable clients at risk.

*Emerging trends in neuroscience* Key Points: • A multicenter pilot study tested an EEG neurofeedback approach guided by an fMRI-informed reward-system biomarker, aiming to improve depression with prominent anhedonia. • Ten sessions of reward-system training were associated with clinically meaningful reductions in clinician-rated depression and anhedonia, with few device-related adverse events. • The approach is promising, but the open-label, single-arm design means expectancy and non-specific treatment effects cannot be ruled out.