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  • The effects of social feedback through the “Like” feature on brain activity: A systematic review
    Publication . Dores, Artemisa Rocha; Peixoto, Miguel; Fernandes, Carina; Marques, António; Barbosa, Fernando
    Problematic social media (SM) use is a growing concern, particularly among adolescents who are drawn to these platforms for social interactions important to their age group. SM dependence is characterized by excessive, uncontrolled usage that impairs personal, social, and professional aspects. Despite the ongoing debate over recognizing SM addiction as a distinct diagnostic category, the impact of social feedback, particularly through the “like” button, on brain activity remains under scrutiny. Objective: This systematic review aims to study the neural correlates of online social feedback, focusing on the effects of the “like” feedback on brain activity using fMRI and EEG. Methods: The review followed the recommendations of the Preferred Reporting Items for Systematic Reviews and Meta-Analysis Protocols (PRISMA). Results: The review included 11 studies with 504 participants, identifying key brain structures such as the amygdala, ventromedial prefrontal cortex (vmPFC), and ventral striatum involved in reward processing. Positive feedback (“likes”) activates areas like the nucleus accumbens (NACC), vmPFC, and amygdala, with NACC correlating with increased SM use intensity. Negative feedback activates the ventrolateral prefrontal cortex (vlPFC) and left medial prefrontal cortex (mPFC). Behavioral data indicates that positive feedback influences subsequent social interactions. Conclusions: The review highlights disparities in the literature regarding the neural response to social feedback, emphasizing the need for further research to clarify the roles of sex, personality traits, and the person giving feedback. Overall, understanding the neurobiological underpinnings of SM engagement is essential for developing effective interventions to prevent or address the negative effects of excessive SM use.
    2025-01-06Journal article Embargoed access Show more
  • Total sacrectomy rehabilitation: Implementation of the international classification of functioning, disability, and health model – A case report
    Publication . Lopes, Alfredo A.; Mesquita, Inês; Torres, Rui; Torres, Rui; Lopes, Alfredo; Mesquita, Inês
    This study aims to outline an evaluative diagnostic process and intervention for a patient who underwent total sacrectomy based on the International Classification of Functioning, Disability, and Health (ICF) model. A 70-year-old male with a history of an aggressive sacral chordoma experiencing intense pain, constipation, and polyuria without the sensation of bladder filling, underwent a total sacrectomy. Two evaluations at two-time points were conducted 12 weeks apart. The patient then underwent an individualized rehabilitation program tailored to address impairments, activity limitations, and participation restrictions. The care plan was adjusted based on the patient’s health status and relevant personal and environmental factors. The Barthel Scale scores improved from 60 to 80. Motor scores on the American Spinal Injury Association scale increased from 62 to 66, while sensory scores for light touch improved from 86 to 96. However, pain scores remained stable at 86. Functional reach tests showed notable enhancements, with anterior reach increasing from 16.4 cm to 23.7 cm and lateral reach from 9.6 cm to 15.2 cm. The patient also showed progress in mobility, increasing the number of steps taken from 0 to 10. This case report highlights the positive therapeutic outcomes achieved, illustrating improvements in functional activities and patient independence, thereby underscoring the effectiveness of the ICF model in managing patients undergoing total sacrectomy.
    2025-01-06Research article Open access Show more