PROCESS-2: A Benchmark Speech Corpus for Early Cognitive Impairment Detection. - Madhurananda Pahar; Caitlin H. Illingworth; Bahman Mirheidari; Hend Elghazaly; Fritz Peters; Sophie Young; Wing-Zin Leung; Labhpreet Kaur; Daniel Blackburn; Heidi Christensen (CoRR, 2026)