Guess who? Investigating the proper name processing network by means of tDCS

Pisoni, Alberto; Vernice, Mirta; Iasevoli, Luigi; Cattaneo, Zaira; Papagno, Costanza

doi:10.1016/j.neuropsychologia.2014.11.025

Cited by 32 publications

(32 citation statements)

References 81 publications

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“…However, given that tDCS-induced improvements are thought to be based on long-term-potentiation-like increases of synaptic strength which occur relatively early after learning (Liebtanz et al, 2002), it is reasonable to assume that synaptic consolidation processes had at least partly occurred during the retention interval of Experiment 3. In addition, a retention interval of one hour or less was sufficient in previous PFC anodal tDCS studies to demonstrate an increase of episodic memory performance (Penolazzi et al, 2010;Javadi and Walsh, 2012;Gray et al, 2015;Pisoni et al, 2015b), although not consistently (Zwissler et al, 2014;Nikolin et al, 2015;Smirni et al, 2015). More systematic approaches are needed to understand the pattern of tDCS effects over time.…”

Section: Discussionmentioning

confidence: 97%

Effects of Anodal Transcranial Direct Current Stimulation Over the Ventrolateral Prefrontal Cortex on Episodic Memory Formation and Retrieval

et al. 2018

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In the past decade, several studies have investigated the effects of transcranial direct current stimulation (tDCS) on episodic memory abilities. However, the specific conditions under which tDCS affects memory remain largely unclear. Here, we report data from 4 experiments aimed at investigating the effects of anodal tDCS over the left ventrolateral prefrontal cortex (VLPFC) on verbal episodic memory. We evaluated tDCS-induced effects as a function of time of administration, nature of the memory encoding task, and age of the participants. A robust enhancement of memory performance was only found when anodal tDCS was delivered during intentional memorization. This enhancement was evident in young and older adults. tDCS applied during incidental memorization or during retrieval did not induce any modulation of memory performance, and memory was unaffected by offline administration before encoding or retrieval. These results show that the modulation of episodic memory functions by anodal tDCS over the left VLPFC is dependent upon the time of administration and the nature of the memory task. The findings may help profile the optimal stimulation protocols for neurorehabilitation interventions on individuals with memory decline.

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Section: Discussionmentioning

confidence: 97%

Effects of Anodal Transcranial Direct Current Stimulation Over the Ventrolateral Prefrontal Cortex on Episodic Memory Formation and Retrieval

et al. 2018

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“…were specific to the brain region under investigation and did not extend to other stimulated regions [20,29,[42][43][44][45][46]. On the one hand, it is a straightforward assumption that tDCS may exert its effects under specific circumstances.…”

Section: A N U S C R I P Tmentioning

confidence: 96%

A systematic review and meta-analysis of the effects of transcranial direct current stimulation (tDCS) on episodic memory

et al. 2019

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“…In addition to the executive-control benefits of anodal stimulation over LPFC in the memory domain, there are also many reports of tDCS-mediated improvements in language processing, including artificial grammar learning [ 61 ], verbal categorization [ 62 ], reading efficiency [ 63 ], and language production among healthy adults and individuals with aphasia [ 64 ]. Many of these findings involve stimulating temporal regions, but those involving stimulation of left LPFC generally result in quicker production times to picture cues [ 65 – 68 ], better semantic fluency [ 69 – 71 ], faster proper naming [ 72 ], and fewer speech errors [ 73 – 74 ]. Such production-based facilitation effects are accompanied by decreased left LPFC activation [ 68 ], increased functional connectivity within the default mode network [ 72 ], and reduced activity in the delta frequency band [ 75 ] (see [ 76 ] for complementary evidence in the alpha band for the n -back task).…”

Section: Brain Stimulation Of Executive-control Regionsmentioning

confidence: 99%

“…Many of these findings involve stimulating temporal regions, but those involving stimulation of left LPFC generally result in quicker production times to picture cues [ 65 – 68 ], better semantic fluency [ 69 – 71 ], faster proper naming [ 72 ], and fewer speech errors [ 73 – 74 ]. Such production-based facilitation effects are accompanied by decreased left LPFC activation [ 68 ], increased functional connectivity within the default mode network [ 72 ], and reduced activity in the delta frequency band [ 75 ] (see [ 76 ] for complementary evidence in the alpha band for the n -back task). These findings suggest that the improved mechanism may be inhibitory in nature (i.e., a component of executive-control) [ 74 ].…”

Section: Brain Stimulation Of Executive-control Regionsmentioning

confidence: 99%

Language and Memory Improvements following tDCS of Left Lateral Prefrontal Cortex

et al. 2015

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Recent research demonstrates that performance on executive-control measures can be enhanced through brain stimulation of lateral prefrontal regions. Separate psycholinguistic work emphasizes the importance of left lateral prefrontal cortex executive-control resources during sentence processing, especially when readers must override early, incorrect interpretations when faced with temporary ambiguity. Using transcranial direct current stimulation, we tested whether stimulation of left lateral prefrontal cortex had discriminate effects on language and memory conditions that rely on executive-control (versus cases with minimal executive-control demands, even in the face of task difficulty). Participants were randomly assigned to receive Anodal, Cathodal, or Sham stimulation of left lateral prefrontal cortex while they (1) processed ambiguous and unambiguous sentences in a word-by-word self-paced reading task and (2) performed an n-back memory task that, on some trials, contained interference lure items reputed to require executive-control. Across both tasks, we parametrically manipulated executive-control demands and task difficulty. Our results revealed that the Anodal group outperformed the remaining groups on (1) the sentence processing conditions requiring executive-control, and (2) only the most complex n-back conditions, regardless of executive-control demands. Together, these findings add to the mounting evidence for the selective causal role of left lateral prefrontal cortex for executive-control tasks in the language domain. Moreover, we provide the first evidence suggesting that brain stimulation is a promising method to mitigate processing demands encountered during online sentence processing.

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Guess who? Investigating the proper name processing network by means of tDCS

Cited by 32 publications

References 81 publications

Effects of Anodal Transcranial Direct Current Stimulation Over the Ventrolateral Prefrontal Cortex on Episodic Memory Formation and Retrieval

Effects of Anodal Transcranial Direct Current Stimulation Over the Ventrolateral Prefrontal Cortex on Episodic Memory Formation and Retrieval

A systematic review and meta-analysis of the effects of transcranial direct current stimulation (tDCS) on episodic memory

Language and Memory Improvements following tDCS of Left Lateral Prefrontal Cortex

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