Intro: Aggressive behavior represents a significant public health issue, with relevant social, political, and security implications. Non-invasive brain stimulation (NIBS) techniques may modulate aggressive behavior through stimulation of the prefrontal cortex. Aims: To review research on the effectiveness of NIBS to alter aggression, discuss the main findings and potential limitations, consider the specifics of the techniques and protocols employed, and discuss clinical implications. Methods: A systematic review of the literature available in the PubMed database was carried out, and 17 randomized sham-controlled studies investigating the effectiveness of NIBS techniques on aggression were included. Exclusion criteria included reviews, meta-analyses, and articles not referring to the subject of interest or not addressing cognitive and emotional modulation aims. Conclusions: The reviewed data provide promising evidence for the beneficial effects of tDCS, conventional rTMS, and cTBS on aggression in healthy adults, forensic, and clinical samples. The specific stimulation target is a key factor for the success of stimulation on aggression modulation. rTMS and cTBS showed opposite effects on aggression compared with tDCS. However, due to the heterogeneity of stimulation protocols, experimental designs, and samples, we cannot exclude other factors that may play a confounding role.

Background and Objectives: Theory of mind (ToM) deficits in children with ADHD are closely related to social difficulties and problems in interpersonal interactions. Evidence suggests that these cognitive deficits negatively affect the ability to understand and respond to others’ emotions and intentions, thus contributing to social isolation and a lower quality of life. However, the findings across studies vary, indicating that ADHD subtype and comorbidities, such as anxiety and mood disorders, can significantly influence sociocognitive deficits, modulating the extent of social problems. Materials and Methods: This review examines the relationship among ADHD, ToM, and empathy, analyzing studies comparing children with ADHD with peers with typical development or other neurodevelopmental conditions. A search in PubMed, Scopus, and the Cochrane Library prior to January 10, without time restrictions, using “ADHD”, “Cognitive Empathy”, and “Theory of Mind” identified relevant studies assessing these abilities through neuropsychological tests or questionnaires. Results: Of the initial 243 studies, 23 studies met the inclusion criteria. Children with ADHD exhibited significant impairments in ToM and empathy, affecting social cognition and interpersonal understanding. Various assessment tools revealed difficulties in understanding beliefs, emotions, and intentions, with executive function deficits playing a crucial role in shaping these social challenges. Conclusions: This review highlights the need for targeted therapeutic interventions that not only address cognitive deficits but consider emotional and metacognitive aspects, such as emotion regulation and self-awareness. Future research should focus on integrating executive function training with approaches that develop metacognitive and emotional skills, thus providing more comprehensive support.