scholarly journals HIV-Associated Episodic Memory Impairment: Evidence of a Possible Differential Deficit in Source Memory for Complex Visual Stimuli

2009 ◽  
Vol 21 (2) ◽  
pp. 189-198 ◽  
Author(s):  
Erin E. Morgan ◽  
Steven Paul Woods ◽  
Erica Weber ◽  
Matthew S. Dawson ◽  
Catherine L. Carey ◽  
...  
2015 ◽  
Vol 74 (2) ◽  
pp. 91-104 ◽  
Author(s):  
Bo Wang

Emotional arousal induced after learning has been shown to modulate memory consolidation. However, it is unclear whether the effect of postlearning arousal can extend to different aspects of memory. This study examined the effect of postlearning positive arousal on both item memory and source memory. Participants learned a list of neutral words and took an immediate memory test. Then they watched a positive or a neutral videoclip and took delayed memory tests after either 25 minutes or 1 week had elapsed after the learning phase. In both delay conditions, positive arousal enhanced consolidation of item memory as measured by overall recognition. Furthermore, positive arousal enhanced consolidation of familiarity but not recollection. However, positive arousal appeared to have no effect on consolidation of source memory. These findings have implications for building theoretical models of the effect of emotional arousal on consolidation of episodic memory and for applying postlearning emotional arousal as a technique of memory intervention.


2007 ◽  
Author(s):  
Paul S. Merritt ◽  
Adam Cobb ◽  
Luke Moissinac ◽  
Corpus Christi ◽  
Elliot Hirshman

2015 ◽  
Vol 10 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Michael Matthew Francis ◽  
Tom A. Hummer ◽  
Jenifer L. Vohs ◽  
Matthew G. Yung ◽  
Emily Liffick ◽  
...  

2016 ◽  
Vol 10 (3) ◽  
pp. 204-209 ◽  
Author(s):  
Arthur Oscar Schelp ◽  
Cristiane Lara Mendes-Chiloff ◽  
Vanessa Cristina Paduan ◽  
José Eduardo Corrente ◽  
Fabrício Diniz de Lima ◽  
...  

ABSTRACT Age is one of the risk factors for dementia in patients with Parkinson's disease (PDD). Distinct cognitive syndromes of Parkinson's disease (PD) have been identified in previous studies. Questions about the role of such cognitive disorders in PD outcomes, especially memory dysfunction, in patients with PD remain unanswered. Objective: To establish possible correlations between delayed recall memory (episodic memory), age, and other demographic variables in patients with PD. Methods: A two-stage protocol was applied. Patients with delayed recall memory compromise, selected based on a brief battery of tests (BBRC-Edu), were classified as dementia cases and submitted to the Mattis Dementia Rating Scale (MDRS). Data from patients with memory disturbances were compared against individuals without episodic memory impairment, and correlated with age and demographic variables. Results: Except for identification and naming, all subtests in the screening battery showed a significant difference (p≤0.0001) between the memory-compromised group (case) and the group without memory impairment (no case). The results also correlated negatively with age (p≤0.0001) and positively with level of education (p=0.0874) in patients with PD. Conclusion: The analysis showed a significant relationship between age and dementia characterized by impaired episodic memory. The findings support reports of a wide spectrum of neuropsychological performance impairment in PD with age, particularly dementia associated with memory deterioration. No correlations between disease duration and cognitive dysfunction were evident.


2018 ◽  
Vol 8 (2) ◽  
pp. 80-89
Author(s):  
Selene Cansino

The aim of this study was to determine the effects of endogenous and exogenous orienting of attention on episodic memory. Thirty healthy participants performed a cueing attention paradigm during encoding, in which images of common objects were presented either to the left or to the right of the center of the screen. Before the presentation of each image, three types of symbolic cues were displayed to indicate the location in which the stimuli would appear: valid cues to elicit endogenous orientation, invalid cues to prompt exogenous orientation and neutral or uncued trials. The participants’ task was to discriminate whether the images were symmetrical or not while fixating on the center of the screen to assure the manifestation of only covert attention mechanisms. Covert attention refers to the ability to orient attention by means of central control mechanisms alone, without head and eye movements. Trials with eye movements were excluded after inspection of eye-tracker recordings that were conducted throughout the task. During retrieval, participants conducted a source memory task in which they indicated the location where the images were presented during encoding. Memory for spatial context was superior during endogenous orientation than during exogenous orientation, whereas exogenous orientation was associated with a greater number of missed responses compared to the neutral trials. The formation of episodic memory representations with contextual details benefits from endogenous attention.


2019 ◽  
Vol 11 (3) ◽  
pp. 329 ◽  
Author(s):  
IltonSantos da Silva ◽  
JoanaRosar Corbellini ◽  
Gabrielle Pfutzenreuter ◽  
LeilaTeresinha Maranho ◽  
MárciaRegina Pincerati

2008 ◽  
Vol 4 (2) ◽  
pp. 94
Author(s):  
Sung Kwan Kim ◽  
Kyung Won Park ◽  
Do-Young Kang ◽  
Jae Kwan Cha ◽  
Sang-Ho Kim ◽  
...  

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