iEEG

Functional Roles of Sensorimotor Alpha and Beta Oscillations in Overt Speech Production

Power decreases, or desynchronization, of sensorimotor alpha and beta oscillations (i.e., alpha and beta ERD) have long been considered as indices of sensorimotor control in overt speech production. However, their specific functional roles are not …

A concise overview of the spatial and temporal underpinnings of lexical selection in spoken word production

Word production and comprehension both require mapping between the meaning, form, and syntactical representations of the word. We refer to the collective set of processes involved in performing this mapping as lexical selection. In the field of word …

The electrophysiology of language production

In the past decade, the well-established psycholoinguistics tradition of behavioural measures to study language production has been increasingly complemented with electrophysiological investigations. As a direct measure of net neuronal activity, the …

Advances in human intracranial electroencephalography research, guidelines and good practices

Since the second-half of the twentieth century, intracranial electroencephalography (iEEG), including both electrocorticography (ECoG) and stereo-electroencephalography (sEEG), has provided an intimate view into the human brain. At the interface …

Intracranial EEG evidence of semantic interference and phonological facilitation in spoken word production

Behavioral and classical electrophysiological methods (scalp EEG) provide important information about the timing of different processes involved in spoken word production, while functional Magnetic Resonance Imaging (fMRI) allows the localization of …

Electrocorticography reveals spatiotemporal neuronal activation patterns of verbal fluency in patients with epilepsy

Verbal fluency is commonly used to evaluate cognitive dysfunction in a variety of neuropsychiatric diseases, yet the neurobiology underlying performance of this task is incompletely understood. Electrocorticography (ECoG) provides a unique …

Speaking waves: neuronal oscillations in language production

Language production involves the retrieval of information from memory, the planning of an articulatory programme, and executive control and self-monitoring. These processes can be related to the domains of long-term memory, motor control, and …

Intracranial Electrophysiology in Language Research

Intracranial electrophysiological recording in humans has been a long-standing technique in neurosurgical treatment for epilepsy. Due to the clinical constraints as well as the necessity to map critical language sites prior to resection of tissue, …

Human hippocampal pre-activation predicts behavior

The response to an upcoming salient event is accelerated when the event is expected given the preceding events i.e. a temporal context effect. For example, naming a picture following a strongly constraining temporal context is faster than naming a …

Direct brain recordings reveal hippocampal rhythm underpinnings of language processing

Language is typically studied in isolation from memory. We demonstrate that the same neuronal computations used by the hippocampus for memory also subserve online language usage. These findings represent a major step in integrating the studies of language and memory, significantly expanding the role of hippocampal theta oscillations.