怪異の類型と分布の時代変化に関する定量的分析の試み

After a broad review of relevant fields of paranormal research, we analyzed how the ghost types and distribution patterns of haunted sites in Toyama have changed during the last 100 years. The targets consisted of paranormal sightings reported in 1) a newspaper series published in the 1910s and 2) information gathered in 2018 from online bulletin boards and ghost portal sites. The 114 sites were each georeferenced and their relative distribution trends were visualized by kernel density estimation and raster calculation (search radius, 8 km; output cell size, 300 m). The most noticeable difference was the withdrawal from haunted sites in urban areas. Text analyses also revealed that both the diversity of paranormal beings and frequency of interactions with them was reduced in the 2018 materials.