Peter N. Steinmetz
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View article: Excitability at encoding determines sparse coding of remembered episodic memories in the human hippocampus
Excitability at encoding determines sparse coding of remembered episodic memories in the human hippocampus Open
Neurocomputational models hold that individual episodic memories are represented by a sparse, pattern-separated coding scheme in the hippocampus. In addition, recent theories of neuronal allocation suggest that the assignment of individual…
View article: Sparse Coding of Episodic Memory in the Human Hippocampus is Related to the Excitability of Neurons at Encoding and Predicts Subsequent Memory
Sparse Coding of Episodic Memory in the Human Hippocampus is Related to the Excitability of Neurons at Encoding and Predicts Subsequent Memory Open
Neurocomputational models hold that individual episodic memories are represented by a sparse, pattern-separated coding scheme in the hippocampus. In addition, recent theories of neuronal allocation suggest that the assignment of individual…
View article: Encoding of Race Categories by Single Neurons in the Human Brain
Encoding of Race Categories by Single Neurons in the Human Brain Open
Previous research has suggested that race-specific features are automatically processed during face perception, often with out-group faces treated categorically. Functional imaging has illuminated the hemodynamic correlates of this process…
View article: Two kinds of memory signals in neurons of the human hippocampus
Two kinds of memory signals in neurons of the human hippocampus Open
Significance Episodic memories represent the “what,” “when,” and “where” of specific episodes. In epilepsy patients, we detected single-unit activity reflecting episodic memory only in the hippocampus. This neural signal is sparsely coded …
View article: Two kinds of memory signals in neurons of the human hippocampus
Two kinds of memory signals in neurons of the human hippocampus Open
Some studies of the neural representation of memory in the human hippocampus have identified memory signals reflecting the categorical status of test items (novel vs. repeated). Others have identified pattern-separated, episodic memory sig…
View article: Spiking activity in the human hippocampus prior to encoding predicts subsequent memory
Spiking activity in the human hippocampus prior to encoding predicts subsequent memory Open
Encoding activity in the medial temporal lobe, presumably evoked by the presentation of stimuli (postonset activity), is known to predict subsequent memory. However, several independent lines of research suggest that preonset activity also…
View article: Estimates of distributed coding of visual objects by single neurons in the human brain depend on which spike sorting technique is used
Estimates of distributed coding of visual objects by single neurons in the human brain depend on which spike sorting technique is used Open
Objective . To determine whether the estimated fraction and degree of distribution of visual responsive neurons in human intracranial microwire recordings depends upon the spike sorting method used. Approach . A large dataset of human intr…
View article: Representation of continuous recognition memory by single neurons in the human brain
Representation of continuous recognition memory by single neurons in the human brain Open
This dataset contains summary spike counts of single neurons recorded in the human amygdala, anterior cingulate cortex, hippocampus, and ventromedial prefrontal cortex as epilepsy patients performed two continuous recognition memory tasks:…
View article: Coding of episodic memory in the human hippocampus
Coding of episodic memory in the human hippocampus Open
Significance Neurocomputational models hold that episodic memories are represented by sparse, stimulus-specific neural codes. In tests of episodic memory, single-unit recording studies of the human hippocampus have found neurons that opera…
View article: Single neuron recordings of bilinguals performing in a continuous recognition memory task
Single neuron recordings of bilinguals performing in a continuous recognition memory task Open
We report the results of a bilingual continuous recognition memory task during which single- and multi-neuron activity was recorded in human subjects with intracranial microwire implants. Subjects (n = 5) were right-handed Spanish-English …
View article: Gender differences in human single neuron responses to male emotional faces
Gender differences in human single neuron responses to male emotional faces Open
Well-documented differences in the psychology and behavior of men and women have spurred extensive exploration of gender's role within the brain, particularly regarding emotional processing. While neuroanatomical studies clearly show diffe…
View article: Distributed Representation of Visual Objects by Single Neurons in the Human Brain
Distributed Representation of Visual Objects by Single Neurons in the Human Brain Open
It remains unclear how single neurons in the human brain represent whole-object visual stimuli. While recordings in both human and nonhuman primates have shown distributed representations of objects (many neurons encoding multiple objects)…