Session-by-session dataset of autonomic and emotional modulation and suicidal ideation in a patient with borderline personality disorder, Brazil, 2025–2026

HRV was recorded using a Polar H10 sensor, with data acquisition via the Elite HRV mobile application and subsequent processing and analysis performed using Kubios HRV software. Measurements included five-minute baseline recordings (b), five-minute recordings under controlled breathing conditions (resp), and continuous recordings during assessment and intervention sessions. From these continuous recordings, specific time windows were extracted corresponding to peak parasympathetic activity (pp) and peak sympathetic activation (ps).The dataset is organized in tabular format, with rows representing different clinical and physiological measures and columns corresponding to sequential sessions (e.g., clinical interview, structured assessment, baseline, intervention sessions, and follow-up).

Units of measurement vary according to each instrument (e.g., scale scores, milliseconds for RMSSD). Missing data may occur in sessions where specific measures were not collected, and these are represented as blank cells. No known systematic measurement errors were identified; however, physiological signals may be subject to artifacts related to movement or sensor variability, which were minimized during preprocessing.

The dataset is provided in standard tabular formats compatible with commonly used statistical software.