{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T22:50:43Z","timestamp":1791327043242,"version":"4.3.1"},"reference-count":62,"publisher":"Institute of Mathematical Statistics","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Ann. Appl. Stat."],"published-print":{"date-parts":[[2025,12,1]]},"abstract":"<jats:p>This article focuses on a multimodal imaging data application where structural\/anatomical information from gray matter (GM) and brain connectivity information in the form of a brain connectome network from functional magnetic resonance imaging (fMRI) are available for a number of subjects with different degrees of primary progressive aphasia (PPA), a neurodegenerative disorder (ND) measured through a speech rate measure on motor speech loss. The clinical\/scientific goal in this study becomes the identification of brain regions of interest significantly related to the speech rate measure to gain insight into ND patterns. Viewing the brain connectome network and GM images as objects, we develop an integrated object response regression framework of network and GM images on the speech rate measure. A novel integrated prior formulation is proposed on network and structural image coefficients in order to exploit network information of the brain connectome while leveraging the interconnections among the two objects. The principled Bayesian framework allows the characterization of uncertainty in ascertaining a region being actively related to the speech rate measure. Our framework yields new insights into the relationship of brain regions associated with PPA, offering a deeper understanding of neurodegenerative patterns of PPA. The Supplementary Material adds details about posterior computation and additional empirical results.<\/jats:p>","DOI":"10.1214\/25-aoas2071","type":"journal-article","created":{"date-parts":[[2025,12,5]],"date-time":"2025-12-05T15:43:36Z","timestamp":1764949416000},"page":"3282-3303","source":"Crossref","is-referenced-by-count":1,"title":["Multiobject data integration in the study of primary progressive aphasia"],"prefix":"10.1214","volume":"19","author":[{"given":"Rene","family":"Gutierrez","sequence":"first","affiliation":[{"name":"Department of Statistics, Texas A & M"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aaron","family":"Scheffler","sequence":"additional","affiliation":[{"name":"Department of Epidemiology and Biostatistics, UC San Francisco"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rajarshi","family":"Guhaniyogi","sequence":"additional","affiliation":[{"name":"Department of Statistics, Texas A & M"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria Luisa","family":"Gorno-Tempini","sequence":"additional","affiliation":[{"name":"Department of Neurology, UC San Francisco"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria Luisa","family":"Mandelli","sequence":"additional","affiliation":[{"name":"Department of Neurology, UC San Francisco"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Giovanni","family":"Battistella","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology\u2013Head and Neck Surgery, Harvard Medical School"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"108","reference":[{"key":"56","doi-asserted-by":"publisher","unstructured":"<small>VAN DER PAS, S.<\/small>, <small>SZAB\u00d3, B.<\/small> and <small>VAN DER VAART, A.<\/small> (2017). 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