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Description
Soundscapes influence emotional and cognitive states, yet their capacity to trigger autobiographical memory remains underexplored in psychoacoustics. This study is the second part of an audiovisual experiment investigating the relationships among soundscape perception, autobiographical memory retrieval, and soundscape arousal. Twenty-seven participants (university students and academic staff) were exposed to four of five scenes: 1. urban traffic, traffic masked 2. with water sounds, 3. with simple music, 4. with sleep music, and 5. with changes in loudness. Electrodermal activity and heart rate were recorded continuously. Following each scene, participants completed a structured memory elicitation protocol assessing whether the soundscape triggered autobiographical memory across eight associative dimensions: meaningful events, persons, places, activities, objects, time periods, thoughts, and emotions. A memory profile heatmap is proposed to visualise the proportion of participants who trigger each memory dimension in each scene, enabling direct comparison across conditions. Skin conductance response frequency and tonic electrodermal level slope are examined in relation to memory retrieval using linear mixed-effects models that account for the repeated-measures structure of the data. This multimodal framework bridges soundscape perception, autobiographical memory research, and objective physiological measurement, offering a novel perspective on how urban sound environments are experienced and remembered. Implications for soundscape design and evaluation are discussed.