Download or read book The Neural Correlates of Encoding Memory Associations written by Jenny Wong and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A veridical memory for an episodic event contains multiple pieces of information, which include associations between different items in the environment, temporal information about when different items were experienced, and contextual information such as where the items were experienced. In a series of three experiments presented in this thesis, the subsequent memory procedure was used to investigate the neural correlates of successfully encoding these various types of episodic memory associations. The overarching aim of these studies was to identify neural correlates that indexed encoding operations that led to later successful memory for item-item, item-context, and temporal order information. Although each type of memory association had been investigated on its own in previous studies, the three experiments in this dissertation were the first to investigate the neural correlates of encoding item-item and item-context/temporal order associations within a common study episode. The first two experiments employed fMRI techniques to directly contrast the encoding of item-item and temporal order/item-context associations, respectively. The third experiment employed EEG/ERP techniques to directly contrast the encoding of item-item and item-context associations. Collectively, the findings across the three experiments further our understanding of the neural correlates underlying the memory encoding of different aspects of an experience.
Download or read book Neural Correlates of Long term Memory written by Eva Bauch and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Neural Correlates of Long term Memory written by E. M. Bauch and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Neural Correlates of Encoding Pictures Into Long term Memory written by Danying Wang and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Neural Correlates of Encoding Pictures Into Long term Memory written by and published by . This book was released on 2015 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Neural Correlates of Repeated Memory Encoding and Content Reinstatement written by Carolin Sievers and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book What are the neural correlates of encoding novel information in memory written by Josefin Sveen and published by . This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Neural Mechanisms of Episodic Memory Formation written by Nicole Marie Long and published by . This book was released on 2015 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to remember what you had for breakfast today, you must rely on episodic memory, the memory for personal events situated within a spatiotemporal context. In this dissertation, I use electroencephalographic (EEG) recordings to measure the neural correlates of successful episodic memory formation. The recorded EEG signals simultaneously sample local field potentials throughout the brain, and can be analyzed in terms of specific time-varying oscillatory or spectral components of neural activity which are thought to reflect the concerted activity of neuronal populations. I collected EEG recordings while participants engage in free recall, an episodic memory task during which participants must study and then recall a list of items. In the first chapter, I compare the spectral correlates during encoding of items later remembered to those later forgotten using two separate recording modalities, scalp and intracranial EEG. I find that memory formation is characterized by broad low frequency spectral power decreases and high frequency power increases across both datasets, suggesting that scalp EEG can resolve high frequency activity (HFA) and that low frequency decreases in intracranial EEG are unlikely due to pathology. In the next chapter, I connect these HFA increases to memory-specific processes by comparing study items based on how they are recalled, not whether they are recalled. I find increased HFA in left lateral cortex and hippocampus during the encoding of subsequently clustered items, those items recalled consecutively with their study neighbors at test. The precise time course of these results suggests that context updating mechanisms and item-to-context associative mechanisms support successful memory formation. In the third chapter, I measure how the formation of these episodic associations is modulated by pre-existing semantic associations by including a semantic orienting task during the encoding interval. I find that semantic processing interferes with the formation of new, episodic memories. In the final chapter, I show that the memory benefit for emotionally valenced items is better explained by a contextual mechanism than an attentional mechanism. Together, my work supports the theory that contextual encoding associative mechanisms, reflected by HFA increases in the memory network, support memory formation.
Download or read book The Electrophysiological and Neural Correlates of Associative Memory in Humans written by Marwa Azab and published by . This book was released on 2012 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: Episodic memory (EM) entails the binding of many elements of an event into a unique coherent whole anchored into spatial and temporal dimensions. The focus of this dissertation is to address an obligatory defining feature of EM: associative learning. Specifically, are there different breeds of associative memory? Some examples of associations studied in memory laboratories are the binding between two items, an item with its context, or an item and its internal features (such as color and/or location). All the experiments conducted in fulfillment of this dissertation focus on the binding of an item to its temporal and/or spatial context, after one learning opportunity, utilizing different methods, tasks and stimulus materials. In experiments I-III, we employed the subsequent memory paradigm and visually presented words. In experiment IV, we employed the continuous implicit recognition task and images. Different dependent variables were also measured to investigate this question. In experiments I and II, we recorded electrophysiological brain data, whereas in experiments III and IV, we recorded changes in the hemodynamic response. The work presented here progressively increases in granularity from searching for any location-agnostic differences in brain activations (experiments I & II) to a whole brain search for localized differences (experiment III) to a very focused search limited to the medial temporal lobe and specifically the hippocampal subfield regions (experiment IV). More explicitly, we begin in experiments I and II by generally investigating whether temporal and within-domain word-word associations differ by recording electrophysiological brain activity. In experiment III we attempt to localize these differences by recording whole brain fMRI. In experiment IV, we broaden the question to additionally include spatial associative learning and utilize high-resolution fMRI to focus on a structure that is indisputably involved in this type of learning, the hippocampus. The results suggest that temporal and non-temporal associations generally engage the same brain regions. Although not tested directly in these studies, both the PFC and hippocampal regions are engaged during associative learning, but they capitalize on different strategies: semantic and mnemonic, respectively.
Download or read book The Wiley Handbook on The Cognitive Neuroscience of Memory written by Donna Rose Addis and published by John Wiley & Sons. This book was released on 2015-06-02 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Wiley Handbook on the Cognitive Neuroscience of Memory presents a comprehensive overview of the latest, cutting-edge neuroscience research being done relating to the study of human memory and cognition. Features the analysis of original data using cutting edge methods in cognitive neuroscience research Presents a conceptually accessible discussion of human memory research Includes contributions from authors that represent a “who’s who” of human memory neuroscientists from the U.S. and abroad Supplemented with a variety of excellent and accessible diagrams to enhance comprehension
Download or read book Neural Correlates of Context dependent Memory written by Christin Campe and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Autobiographical Memory and the Construction of a Narrative Self written by Robyn Fivush and published by Psychology Press. This book was released on 2003 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: First Published in 2003. Routledge is an imprint of Taylor & Francis, an informa company.
Download or read book Functional Significance of Neural Correlates of Episodic Encoding written by Melina Rifka Uncapher and published by . This book was released on 2007 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Cognitive Neuroscience of Memory written by Amanda Parker and published by Psychology Press. This book was released on 2005-08-18 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent advances in techniques available to memory researchers have led to a rapid expansion in the field of cognitive neuroscience of memory. This book provides accessible coverage of four key areas of recent advance, including research on functional imaging, electrophysiological and lesion studies, and developments from the computational modelling approach. The first section reviews functional imaging studies in humans, with particular emphasis on how imaging methods have clarified the cortical areas involved in memory formation and retrieval. The second section describes electrophysiological and lesion research in monkeys, where lesion and disconnection studies are rapidly adding to our knowledge of both information processing and modulatory aspects of memory formation. In the third section, electrophysiological and lesion studies in rats are reviewed allowing for a detailed study of the role of novelty and exploration in memory formation. The final section reviews current research in computational modelling which has allowed the development of new theoretical and experimental approaches to the study of memory encoding and retrieval. This volume draws together the current developments in each field, allowing the synthesis of ideas and providing converging evidence from a range of sources. It will be a useful resource for both advanced undergraduate and postgraduate students of psychology, as well as researchers in the field and anyone with an interest in cognitive neuroscience.
Download or read book An Examination of the Behavioral and Neural Correlates of Conceptual Implicit Memory Familiarity based Recognition and Cued Recall written by Wei-chun Wang and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Recognition memory judgments can be based on two dissociable processes: recollection and familiarity. It has recently been proposed that the perirhinal cortex (PRC)-mediated process supporting familiarity-based recognition may be related to other forms of mnemonic retrieval. Utilizing an individual differences approach, the first chapter of this dissertation investigates the extent to which familiarity- and recollection-based recognition are related to conceptual implicit memory and cued recall. Results indicate that familiarity is correlated with conceptual implicit memory whereas both recollection and familiarity are correlated with cued recall. Chapters two and three utilize patient lesion studies and functional MRI to assess the role of the PRC in conceptual implicit memory. We found that amnesic patients with damage to PRC are impaired in tasks assessing conceptual implicit memory and that PRC activity at encoding predicts subsequent conceptual, but not perceptual, implicit memory. In a follow-up study (Chapter 3), we report that PRC exhibited repetition-related suppression during conceptual priming, and also exhibited decreasing activity as a function of increasing memory confidence, or familiarity strength. Furthermore, PRC also exhibited greater activity for high confidence (i.e., recollected) items. The last chapter examines the role of the medial temporal lobes during cued recall, and results indicated that PRC is sensitive to the cued recall of abstract fractals encoded as items, whereas the parahippocampal cortex is sensitive to the cued recall of abstract fractals encoded as contexts (i.e., backgrounds). In sum, these findings indicate that the processes of familiarity-based recognition, conceptual implicit memory, and cued recall can be behaviorally related, and that PRC supports these processes through the encoding and retrieval of item representations.
Download or read book Analyzing Neural Correlates of Episodic Memory written by Sean Patrick Wright and published by . This book was released on 2007 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Neural Correlates of Inhibition in Episodic Memory written by Maria Wimber and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
