First Description of Working Memory Capacity Limits (1956) - George Miller published his famous paper "The Magical Number Seven, Plus or Minus Two," describing the limited capacity of working memory that has influenced decades of cognitive research.
Introduction of the Montreal Cognitive Assessment (MoCA) (2005) - Dr. Ziad Nasreddine introduced this rapid screening instrument for detecting mild cognitive impairment, which has become one of the most widely used cognitive assessment tools worldwide.
First Evidence of REM Sleep's Role in Memory (1953) - Eugene Aserinsky and Nathaniel Kleitman published their discovery of rapid eye movement sleep and its association with dreaming, later shown to play a crucial role in memory consolidation.