scholarly journals Editorial: Neural Mechanisms of Memory Retrieval and Its Links to Other Cognitive Processes

2021 ◽  
Vol 15 ◽  
Author(s):  
Sue-Hyun Lee ◽  
Xiaonan L. Liu ◽  
Marc N. Coutanche
Keyword(s):  
Cognitive Processes ◽  
Memory Retrieval ◽  
Neural Mechanisms ◽  
Mechanisms Of Memory

scholarly journals Mechanisms of Memory Retrieval in Slow-Wave Sleep

SLEEP ◽  
2017 ◽  
Vol 40 (9) ◽  
Author(s):  
Scott A Cairney ◽  
Justyna M Sobczak ◽  
Shane Lindsay ◽  
M Gareth Gaskell
Keyword(s):  
Slow Wave ◽  
Memory Retrieval ◽  
Slow Wave Sleep ◽  
Mechanisms Of Memory

Comparative Cognition: Toward a General Understanding of Cognition in Behavior

1993 ◽  
Vol 4 (3) ◽  
pp. 156-161 ◽  
Author(s):  
Edward A. Wasserman
Keyword(s):  
Cognitive Processes ◽  
Comparative Cognition ◽  
Neural Mechanisms ◽  
Comparative Perspective ◽  
The Past ◽  
Nonhuman Animals ◽  
The Future

Human and nonhuman animals alike must adjust to complex and ever-changing circumstances if they are to survive and reproduce. Advanced neural mechanisms enable animals to remember the past, to act in the present, and to plan for the future. Exploring the species generality of cognitive processes in behavior is central to the field of comparative cognition. A comparative perspective may not only broaden but also deepen our understanding of cognition—both in human and in nonhuman animals.

Imaging Cognition: An Empirical Review of PET Studies with Normal Subjects

1997 ◽  
Vol 9 (1) ◽  
pp. 1-26 ◽  
Author(s):  
Roberto Cabeza ◽  
Lars Nyberg
Keyword(s):  
Working Memory ◽  
Episodic Memory ◽  
Cognitive Processes ◽  
Memory Retrieval ◽  
Normal Subjects ◽  
Brain Regions ◽  
Procedural Memory ◽  
Skill Learning ◽  
Activation Patterns ◽  
Selective Perception

We review PET studies of higher-order cognitive processes, including attention (sustained and selective), perception (of objects, faces, and locations), language (word listening, reading, and production), working memory (phonological and visuo-spatial), semantic memory retrieval (intentional and incidental), episodic memory retrieval (verbal and nonverbal), priming, and procedural memory (conditioning and skill learning). For each process, we identify activation patterns including the most consistently involved regions. These regions constitute important components of the network of brain regions that underlie each function.

scholarly journals Between-subject variability in the influence of mental imagery on conscious perception

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
N. Dijkstra ◽  
M. Hinne ◽  
S. E. Bosch ◽  
M. A. J. van Gerven
Keyword(s):  
Mental Imagery ◽  
Cognitive Processes ◽  
Neural Mechanisms ◽  
Conscious Perception ◽  
Group Level ◽  
Response Curves ◽  
Bayesian Hierarchical ◽  
Subject Variability ◽  
Sensory Evidence ◽  
As Effects

Abstract Mental imagery and visual perception rely on similar neural mechanisms, but the function of this overlap remains unclear. One idea is that imagery can influence perception. Previous research has shown that imagining a stimulus prior to binocular presentation of rivalling stimuli increases the chance of perceiving the imagined stimulus. In this study we investigated how this effect interacts with bottom-up sensory input by comparing psychometric response curves for congruent and incongruent imagery in humans. A Bayesian hierarchical model was used, allowing us to simultaneously study group-level effects as well as effects for individual participants. We found strong effects of both imagery as well as its interaction with sensory evidence within individual participants. However, the direction of these effects were highly variable between individuals, leading to weak effects at the group level. This highlights the heterogeneity of conscious perception and emphasizes the need for individualized investigation of such complex cognitive processes.

Memory Repression: Brain Mechanisms underlying Dissociative Amnesia

2010 ◽  
Vol 22 (3) ◽  
pp. 602-613 ◽  
Author(s):  
Hirokazu Kikuchi ◽  
Toshikatsu Fujii ◽  
Nobuhito Abe ◽  
Maki Suzuki ◽  
Masahito Takagi ◽  
...  
Keyword(s):  
Neural Activity ◽  
Memory Retrieval ◽  
Direct Evidence ◽  
Neural Mechanisms ◽  
Stressful Event ◽  
Memory Impairments ◽  
Dissociative Amnesia ◽  
And Control ◽  
Increased Activity ◽  
With Memory

Dissociative amnesia usually follows a stressful event and cannot be attributable to explicit brain damage. It is thought to reflect a reversible deficit in memory retrieval probably due to memory repression. However, the neural mechanisms underlying this condition are not clear. We used fMRI to investigate neural activity associated with memory retrieval in two patients with dissociative amnesia. For each patient, three categories of face photographs and three categories of people's names corresponding to the photographs were prepared: those of “recognizable” high school friends who were acquainted with and recognizable to the patients, those of “unrecognizable” colleagues who were actually acquainted with but unrecognizable to the patients due to their memory impairments, and “control” distracters who were unacquainted with the patients. During fMRI, the patients were visually presented with these stimuli and asked to indicate whether they were personally acquainted with them. In the comparison of the unrecognizable condition with the recognizable condition, we found increased activity in the pFC and decreased activity in the hippocampus in both patients. After treatment for retrograde amnesia, the altered pattern of brain activation disappeared in one patient whose retrograde memories were recovered, whereas it remained unchanged in the other patient whose retrograde memories were not recovered. Our findings provide direct evidence that memory repression in dissociative amnesia is associated with an altered pattern of neural activity, and they suggest the possibility that the pFC has an important role in inhibiting the activity of the hippocampus in memory repression.

Sign in / Sign up

Export Citation Format

Share Document