Amidst rising concerns about mental health in adolescents, the role of social media (SM), particularly highly visual platforms such as TikTok, has become a growing focus of investigation. In the extant literature, conclusive evidence is limited by the aggregate analysis of very heterogeneous SM platforms. This systematic scoping review examines the relationship between TikTok and mental health in adolescents. Additionally, it aims to highlight potential interactions between typical developmental processes and the unique aspects of TikTok, exploring their relevance to mental health within this demographic. Following PRISMA guidelines, a systematic search across PubMed, Scopus, Web of Knowledge, and PsychINFO yielded 20 studies that met the inclusion criteria, encompassing a total of 17,336 subjects from 10 countries. The retrieved studies analyzed four main topics related to TikTok use, i.e., the overall impact on adolescents’ mental health, risk of problematic use and behavioral addiction, consequences on body image and self-esteem, and possible spreading of mental illness behaviors. While TikTok offers creative opportunities for self-expression and peer connection, the literature raises concerns about its potential negative effects on teens, such as lower life satisfaction, increased risk of “contagion” of certain psychiatric symptoms, and problematic usage patterns. Significant variations in study methodologies and outcome measures were observed. In the current era of evolving SM landscapes, a comprehensive approach informed by developmentally grounded research is critically needed to further understand the interplay between SM and adolescent mental health, providing insights for health authorities and policymakers.

Background: Cognitive functions represent foundational factors for mental health and quality of life (QoL). In Tourette syndrome (TS), psychiatric comorbidities are common and have been inconsistently reported to affect the cognition and QoL of patients, while the role of tic disorder duration has not been yet explored. Methods: To examine how comorbidities and TS duration may influence cognition and QoL, N = 80 children with TS (6–16 years) were evaluated using the Wechsler Intelligence Scale for Children (WISC-IV). Standardized questionnaires were used to assess the presence and severity of TS main comorbidities and QoL. Data were interpreted using linear correlations, regression, and mediation analysis. Results: Depression and attention-deficit/hyperactivity disorder (ADHD) symptoms accounted for poorer cognitive performance. Anxiety oppositely predicted better cognitive performance, while no significant role for obsessive compulsive disorder (OCD) was observed. Disease duration was associated with lower total IQ, verbal reasoning, and working memory abilities. Depression, anxiety, and TS duration also deeply influenced QoL measures. Conclusions: TS common comorbidities have a differential impact on the cognitive abilities of children and adolescents, which translates into a complex influence on their perceived QoL. A longer clinical history of tics was related to worse cognitive outcomes, which prompts further consideration of disease duration in both clinical and research settings involving children and adolescents.

The COVID-19 pandemic has deeply affected the psychophysical wellbeing of children worldwide. Alexithymia, a personality trait involving difficulties in identifying and expressing feelings represents a vulnerability factor for stress-related disorders. Under pandemic stress exposure, we aimed to investigate the role of parents’ and children’s alexithymia in the psychophysical symptomatology shown by children and to evaluate possible differences according to age, gender and history of COVID-19 infections. The perception of parents and children about the impact of the pandemic on children’s emotional, social and physiological wellbeing was also explored. Sixty-five familial triads were surveyed in the period from March to May 2022: children (n = 33 males; mean age = 9.53, sd = 1.55), mothers (mean age = 44.12; sd = 6.10) and fathers (mean age = 47.10; sd = 7.8). Both parental and children’s alexithymia scores were significantly associated with somatic and externalizing symptomatology in children. Self-reported anger and externally oriented thinking scores were higher in younger children (age 8–9.9 years) than in older ones (10–12 years). Girls scored higher than boys in somatic complaints, as reported by parents. No difference emerged between children affected/not affected by COVID-19. Notably, children reported a greater negative impact of the pandemic on their emotional and psychosocial well-being than their parents. The findings emphasize the role of alexithymia in the occurrence of psychophysical symptoms in children during the COVID-19 pandemic. The reduced parental awareness of the emotional burden imposed by the pandemic on children indicates the need to better consider how epidemics affect children’s mental health and to develop adequate preventive strategies to support them in these exceptional times.

Tourette syndrome (TS) and early-onset obsessive-compulsive disorder (OCD) are frequently associated and conceptualized as distinct phenotypes of a common disease spectrum. However, the nature of their relationship is still largely unknown on a pathophysiological level. In this study, early structural white matter (WM) changes investigated through diffusion tensor imaging (DTI) were compared across four groups of drug-naïve children: TS-pure (n = 16), TS+OCD (n = 14), OCD (n = 10), and 11 age-matched controls. We analyzed five WM tracts of interest, i.e., cortico-spinal tract (CST), anterior thalamic radiations (ATR), inferior longitudinal fasciculus (ILF), corpus callosum (CC), and cingulum and evaluated correlations of DTI changes to symptom severity. Compared to controls, TS-pure and TS+OCD showed a comparable pattern of increased fractional anisotropy (FA) in CST, ATR, ILF and CC, with FA changes displaying negative correlation to tic severity. Conversely, in OCD, FA decreased in all WM tracts (except for the cingulum) compared to controls and negatively correlated to symptoms. We demonstrate different early WM microstructural alterations in children with TS-pure/TS+OCD as opposed to OCD. Our findings support the conceptualization of TS+OCD as a subtype of TS while suggesting that OCD is characterized by independent pathophysiological mechanisms affecting WM development.

Aim: Daydreaming is a cognitive phenomenon characterized by the redirection of attention from the external world to inner representations. Although serving several adaptive functions, excessive daydreaming has been related to emotional problems and poor psychosocial adjustment. During adolescence, this phenomenon has been scarcely explored as potential psychopathological correlate.This study aims to explore daydreaming frequency and association with psychopathological symptoms in a non‐referred population.Methods: Participants were adolescents from a community sample (N = 251). Daydreaming was assessed through the Daydreaming Frequency Scale (DDFS). Youth Self‐Report (YSR) and Strength and Difficulties Questionnaire (SDQ) were used as self‐reports to evaluate psychopathological problems and adaptive functioning.Results: Excessive daydreaming was present in 12.7% of participants. DDFS scores were significantly elevated in respondents with clinical scores for internalizing, depressive, obsessive–compulsive, and post‐traumatic stress problems. Symptom severity correlated positively with the DDFS. Higher daydreaming was also associated with emotional symptoms, conduct problems and total difficulties on the SDQ.Conclusions: Adolescents who daydream show increased depressive, obsessive–compulsive, and post‐traumatic stress symptoms. Possible cognitive processes at play in the relationship between daydreaming and psychopathology are discussed. Daydreaming may represent a silent psychopathological index that deserves better recognition in the clinical practice and in mental health initiatives for adolescents.