Competition among multiple memory systems: converging evidence from animal and human brain studies

  title={Competition among multiple memory systems: converging evidence from animal and human brain studies},
  author={Russell A. Poldrack and Mark G. Packard},

The Competitive Nature of Declarative and Nondeclarative Memory Systems: Converging Evidence from Animal and Human Brain Studies

Investigation of the multiple memory systems and the mechanisms of interaction is not only important for what it reveals about the evolution and adaptive function of the brain, but for its clinical applications as well.

Factors that influence the relative use of multiple memory systems

Examination of several factors, including information compatibility, temporal sequence of training, the visual sensory environment, reinforcement parameters, emotional arousal, and memory modulatory systems, indicates that despite their anatomical and functional distinctiveness, hippocampal‐ and dorsolateral striatal‐dependent memory systems may potentially interact.

Multiple memory systems

  • N. White
  • Computer Science, Psychology
  • 2007
The term multiple memory systems describes the idea that there are several independent parallel systems of neural structures each of which is specialized to process and store a different kind of

Implicit learning and memory.

A double dissociation revealing bidirectional competition between striatum and hippocampus during learning

This work has addressed the question of whether disruption of hippocampal function can enhance striatum-dependent learning in some paradigms and demonstrated bidirectional competition that constitutes strong evidence for the parallel operation of distinct memory systems.

Emotional arousal and multiple memory systems in the mammalian brain

Evidence indicates that stress or the peripheral injection of anxiogenic drugs can bias animals and humans toward the use of striatal-dependent habit memory in dual-solution tasks in which both hippocampal and Striatal-based strategies can provide an adequate solution.

Hippocampus, cortex, and basal ganglia: Insights from computational models of complementary learning systems

There Is More Than One Kind of Extinction Learning

A novel hypothetical model regarding the role of multiple memory systems in extinction is presented and evidence is described indicating that the hippocampus and dorsolateral striatum mediate different kinds of extinction learning.



Interactive memory systems in the human brain

Examination of classification learning using event-related FMRI showed rapid modulation of activity in these regions at the beginning of learning, suggesting that subjects relied upon the medial temporal lobe early in learning, but this dependence rapidly declined with training, as predicted by previous computational models of associative learning.

The Evolution of Multiple Memory Systems

It is shown that functional incompatibility occurs for a number of the distinctions that have been proposed between memory systems and the conditions under which memory systems could evolve to serve a wide range of functions.

Double Dissociation Between Memory Systems Underlying Explicit and Implicit Memory in the Human Brain

A patient who has a lesion in the right occipital lobe and who showed intact explicit and impaired implicit memory for words is presented and indicates that separate processing systems mediate these two forms of memory, and that a memory system in right Occipital cortex mediates implicit visual memory for Words.

Affective modulation of multiple memory systems

A triple dissociation of memory systems: hippocampus, amygdala, and dorsal striatum.

The results of this study are consistent with the hypothesis that the mammalian brain may be capable of acquiring different kinds of information with different, more-or-less independent neural systems.

Configural association theory: The role of the hippocampal formation in learning, memory, and amnesia

How the theory can be applied to explain a wide range of impairments that have been observed when learning and memory tasks have been employed to assess the effect of hippocampal formation damage is illustrated.

The Neuropsychology of Memory

This paper presents a summary of presently available information about the neuropsychology of human memory, emphasizing three ideas: a) the neural substrate of memory continues to change for a long time after initial learning, which is distinct from the changes underlying forgetting and involves the medial temporal region of the brain.

Hippocampus, space, and memory

It is proposed that the hippocampus is selectively involved in behaviors that require working memory, irrespective of the type of material (spatial or nonspatial) that is to be processed by that memory.

An implicit learning task activates medial temporal lobe in patients with Parkinson's disease.

Using functional MRI, functional activity when performing a habit-learning task was compared in normal controls and subjects with Parkinson's disease, and patients with PD showed less activation in the caudate nucleus and greater activation in a region of prefrontal cortex that has been associated with explicit memory retrieval.

Double dissociation of memory capacities after bilateral occipital-lobe or medial temporal-lobe lesions.

The double dissociations suggest that a memory system localized to the occipital lobe mediates visuoperceptual priming effects, and that this system is independent of neural circuits mediating conceptual primingeffects, and independent of the limbic-diencephalic system supporting conscious recognition of recently encountered information.