READ ME File For 'Dataset supporting the thesis: An Investigation into Interoception as a Transdiagnostic Mechanism Underpinning Anxiety-Related Disorders'

Dataset DOI: https://doi.org/10.5258/SOTON/D3750 

ReadMe Author: Lucy Snell, University of Southampton, ORCID ID: 000-0002-5918-9894

This dataset supports the thesis entitled 'An Investigation into Interoception as a Transdiagnostic Mechanism Underpinning Anxiety-Related Disorders'
AWARDED BY: University of Southampton
DATE OF AWARD: 2025


Date of data collection: January 2024 - January 2025

Information about geographic location of data collection: International & Southampton, UK

Licence:
CC-BY

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DATA & FILE OVERVIEW
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This dataset contains the data collected from 305 participants. This includes self-report and behavioural measures from an adult sample collected as part of a study investigating the relationships between interoception, anxious traits, and symptom severity across multiple anxiety-related conditions. Each row represents an individual participant. Variables include demographic identifiers (site, participant ID), self-report questionnaire scores, and behavioural task indices derived from heartbeat perception paradigms (heartbeat counting and heartbeat detection tasks). Site 1 refers to data collected from lab-based participants, site 2 refers to data collected from online participants where data was collected via Qualtrics.

File format and software required:
- File: Introception & Anxiety Dataset 2025.sav
- Format: SPSS (.sav)
- Software required: IBM SPSS Statistics

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DATA-SPECIFIC INFORMATION 
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Number of variables: 28

Number of cases/rows: 305

Variable list, defining any abbreviations, units of measure, codes or symbols used:
   
Site - Data collection site identifier
Participant - Unique participant ID
ASI - Anxiety Sensitivity Index – total score
IU - Intolerance of Uncertainty – total score
TA - Trait Anxiety (STAIT-5) – total score
MAIA_total - Multidimensional Assessment of Interoceptive Awareness (MAIA) – total score
Noticing - Total MAIA subscale
Not_distracting - Total MAIA subscale
Not_worrying - Total MAIA subscale
Attention_Regulation - Total MAIA subscale
Emotional_Awareness - Total MAIA subscale
Self_Regulation - Total MAIA subscale
Body_Listening - Total MAIA subscale
Trusting - Total MAIA subscale
BPQ - Body Perception Questionnaire – Body awareness score
IAS - Interoceptive Accuracy Scale – self-reported perceived accuracy of internal signal detection
Depression - Total score on PHQ-9
GAD - Total score on GAD-7
OCD - Total score on OCI
Panic- Total score on PDSS
PTSD - Total score on PCL-5
SAD - Total score on SIPS
hb_counting_accuracy - Index from the heartbeat counting task (objective accuracy score)
hb_counting_confidence - Index from the heartbeat counting task (self-report confidence rating of performance)
hb_counting_awareness - Index from the heartbeat counting task (metacognitive evaluation of performance)
hb_detection_accuracy - Index from the heartbeat detection task (objective accuracy score)
hb_detection_confidence - Index from the heartbeat detection task (self-report confidence rating of performance)
hb_detection_awareness - Index from the heartbeat detection task (metacognitive evaluation of performance)

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METHODOLOGICAL INFORMATION
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202 participants were recruited to complete questionaire data collected remotely using the survey platform Qualtrics (Qualtrics, 2024). 
108 participants were recruited to complete questionnaires and heartbeat perception tasks in the laboratory.

Ethical approval was granted by the ethics committee of the University of Southampton (ERGO number 89229). Participants provided informed consent, and data were fully anonymised before analysis and storage


Date that the file was created: March, 2025
