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Brain Imaging Investigation of the Neural Correlates of Emotional Autobiographical Recollection
Published on: August 26, 2011
Priming, recognition and autonomic discrimination in amnesia
Bruce J Diamond1, Andrew R Mayes, Peter R Meudell
1William Paterson University, Wayne, NJ, USA. diamondb@wpunj.edu
Abstract:
Six individuals with amnesia and matched healthy controls participated. There were two objectives. First, determine whether physiological activity at encoding relates to whether a word shows autonomic priming or is recognized. Second, propose a model for understanding relationships between recognition and autonomic priming. In amnesics, 'unrecognized' words were associated with better autonomic discrimination and lower levels of physiological activity at encoding. In healthy participants and amnesics, 'recognized' words were associated with poorer autonomic priming and higher levels of physiological activity at encoding. A state-dependent, activation-fractionation-inhibition model is proposed involving an orienting response elicited by preference and search and modulated by underlying memory strength.
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