Barak Hadad

Abstract Persistent neural activity often outlasts sensory stimulation, forming a bridge between perception and action. Such activity has been associated commonly with working memory, decision making, and action preparation under active task conditions. However, its existence and characteristics during passive states and sleep remain understudied.

Abstract The neural processes that change when falling asleep are only partially understood. At the cortical level, features of both spontaneous neural activity and sensory responses change between wakefulness and sleep. For example, in early auditory cortex sleep increases the occurrence of post-onset silent (OFF) periods and elevates population synchrony. However, it remains unknown whether such changes occur abruptly or gradually around sleep onset and awakening.

Abstract We demonstrate machine-learning assisted dynamic tracking of the shape of a multimode fiber whose spatial configuration is manipulated by the movement of three linear stages. The data source used for the analysis is the coherent speckle pattern of light that has made a round trip in the fiber. © 2023 Optica Publishing Group Full Article | PDF Article More Like This References You do not have subscription access to this journal.