Doubts about double dissociations between short- and long-term memory

@article{Ranganath2005DoubtsAD,
  title={Doubts about double dissociations between short- and long-term memory},
  author={Charan Ranganath and Robert S. Blumenfeld},
  journal={Trends in Cognitive Sciences},
  year={2005},
  volume={9},
  pages={374-380}
}

Figures from this paper

The mind and brain of short-term memory.

A conceptual model tracing the representation of a single item through a short-term memory task is described, describing the biological mechanisms that might support psychological processes on a moment-by-moment basis as an item is encoded, maintained over a delay with some forgetting, and ultimately retrieved.

False memories seconds later: the rapid and compelling onset of illusory recognition.

The results indicate that compelling false memory illusions can be rapidly instantiated and that, consistent with unitary models of memory, they originate from processes that are not specific to LTM tasks.

Expectations of Task Demands Dissociate Working Memory and Long-Term Memory Systems.

Results indicate that distinct memory systems are recruited based on anticipated demands of a memory task, and MTL involvement underlies the observed dissociation between WM and LTM performance.

Challenging the classical distinction between long-term and short-term memory: reconsidering the role of the hippocampus

Converging evidence now suggests that the ability to maintain the configural relationships of visual information in working memory for periods as short as a few seconds critically depends on the hippocampus.

About the Distinction between Working Memory and Short-Term Memory

There is a crucial role for the tasks that are used to measure STM or WM and for the cognitive load reflected by factors like attention and processing speed that may covary between and within these tasks.

Beyond Long-Term Declarative Memory: Evaluating Hippocampal Contributions to Unconscious Memory Expression, Perception, and Short-Term Retention

This chapter reviews literature that points to a role for the hippocampus in three additional domains—namely, perception, short-term or working memory, and unconscious expressions of memory—and suggests that the reach of the hippocampus extends well beyond long-term declarative memory.

Multiple neural states of representation in short-term memory? It’s a matter of attention

This paper considers several theoretical models that postulate, based on considerable behavioral evidence, that information in STM can exist in multiple representational states, and highlights the inferential advantage of multivariate, information-based analyses of neuroimaging data (fMRI and electroencephalography (EEG) over conventional activation-based analysis approaches.

Refresh my memory: Episodic memory reinstatements intrude on working memory maintenance

Support is obtained for the hypothesis that delay-period EM reactivation introduces incidentally associated information into WM, and that these retrieved associations negatively impact subsequent recognition, leading to substitution errors and slowing of accurate responses.
...

References

SHOWING 1-10 OF 84 REFERENCES

Short-term memory and sentence processing: Evidence from neuropsychology

Findings from a brain-damaged patient, E.A., suggest that the phonological storage capacity that is critical to memory span plays only a limited role in language processing, specifically in the maintenance and learning of phonological forms.

Independent Functioning of Verbal Memory Stores: A Neuropsychological Study

Five experiments are described concerning verbal short-term memory performance of a patient who has a very markedly reduced verbal span, indicating that he has a greatly reduced short- term memory capacity and showing that this cannot be attributed to a retrieval failure.

Working Memory Maintenance Contributes to Long-term Memory Formation: Neural and Behavioral Evidence

It is demonstrated that processing during the initial stage of WM maintenance directly contributes to successful LTM formation, and that this effect is mediated by a network that includes the dorsolateral prefrontal cortex and the hippocampus.

Dissociating familiarity from recollection in human recognition memory: Different rates of forgetting over short retention intervals

The present results indicate that item familiarity decreases more rapidly than recollection over short retention intervals, in agreement with the results from nonhuman species.

The demise of short-term memory revisited: empirical and computational investigations of recency effects.

It is suggested that 2 memory components are needed to account for the recency effects: an episodic contextual system with changing context and an activation-based short-term memory buffer that drives the encoding of item-context associations.

Parallel neuronal mechanisms for short-term memory.

Recordings were made from neurons in the inferior temporal cortex of monkeys while the monkeys held a sample picture "in mind" and signaled when it was repeated in a sequence of pictures, ignoring other stimulus repetitions.

Working memory retention systems: a state of activated long-term memory.

High temporal resolution event-related brain potential and electroencephalographic coherence studies of the neural substrate of short-term storage in working memory indicate that the sustained
...