Disorders in planning and strategy application in frontal lobe lesion patients

Gouveia, Paula; Brucki, Sônia Maria Dozzi; Malheiros, Suzana Mária Fleury; Bueno, Orlando Francisco Amodeo

doi:10.1016/j.bandc.2006.09.001

Cited by 68 publications

(49 citation statements)

References 30 publications

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“…While with our design we cannot disregard the possibility that right frontopolar stimulation plays a role in the effects, a functional distinction between the frontopolar and the dorsolateral cortices contributes to a hierarchical system specialized for the functions (Christoff and Gabrieli 2000) involved in Tower of London performance, and studies suggest a specific role of left frontal areas in these functions (Gouveia et al, 2007). An experiment targeting the right DLPFC (F4) and the left frontopolar cortex above the left orbit will further clarify their respective contributions to the results.…”

Section: Discussionmentioning

confidence: 99%

Enhancement of Planning Ability by Transcranial Direct Current Stimulation

Dockery¹,

Hueckel-Weng²,

Birbaumer³

et al. 2009

J. Neurosci.

340

234

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The functional neuroanatomy of executive function critically involves the dorsolateral prefrontal cortex. Transcranial direct current stimulation (tDCS) has been established as a noninvasive tool for transient modulation of cortical function. Here, we examined the effects of tDCS of the left dorsolateral prefrontal cortex on planning function by using the Tower of London task to evaluate performance during and after anodal, cathodal (1 mA, 15 min), and sham tDCS in 24 healthy volunteers. The key finding was a double dissociation of polarity and training phase: improved performance was found with cathodal tDCS applied during acquisition and early consolidation, when preceding anodal tDCS, but not in the later training session. In contrast, anodal tDCS enhanced performance when applied in the later sessions following cathodal tDCS. Our results indicate that both anodal and cathodal tDCS can improve planning performance as quantified by the Tower of London test. Most importantly, these data demonstrate training-phase-specific effects of tDCS. We propose that excitability decreasing cathodal tDCS mediates its early beneficial effect through noise reduction of neuronal activity, whereas a further adaptive configuration of specific neuronal connections is supported by excitability enhancing anodal tDCS in the later training phase by enhanced efficacy of active connections. This gain of function was sustained in a follow-up 6 and 12 months after training. In conclusion, the specific coupling of stimulation and training phase interventions may support the treatment of cognitive disorders involving frontal lobe functions.

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Section: Discussionmentioning

confidence: 99%

Enhancement of Planning Ability by Transcranial Direct Current Stimulation

Dockery¹,

Hueckel-Weng²,

Birbaumer³

et al. 2009

J. Neurosci.

340

234

View full text Add to dashboard Cite

show abstract

“…However, in semantic VFT, the participant is required to produce in 60 seconds as many words as s/he can belonging to a particular category (in this study, animals and fruits). In this process, cognitive flexibility, information organization, and inhibitory capacity are activated, so poor performance is indicative of dysfunction of the frontal lobe, specifically the left frontal cortex (Gouveia, Brucki, Malheiros, & Bueno, 2007). For administration and scoring, Olabarrieta-Landa, Landa-Torre, López-Mugartza, Bialystok, and Arango-Lasprilla (2017) guidelines were followed.…”

Section: Instrument Administrationmentioning

confidence: 99%

Verbal fluency tests: Normative data for Spanish-speaking pediatric population

Olabarrieta‐Landa

Rivera

Lara

et al. 2017

NRE

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Abstract. OBJECTIVE:To generate normative data for the phonological and semantic verbal fluency tests (VFT) in Spanish-speaking pediatric populations. METHOD: The sample consisted of 4,373 healthy children from nine countries in Latin America (Chile, Cuba, Ecuador, Guatemala, Honduras, Mexico, Paraguay, Peru, and Puerto Rico) and Spain. Each participant was administered the VFT as part of a larger neuropsychological battery. Scores for letters F, A, S, and animals and fruit categories were normed using multiple linear regressions and standard deviations of residual values. Age, age 2 , sex, and mean level of parental education (MLPE) were included as predictors in the analyses.

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“…Verbal fluency tasks require individuals to be flexible, organize information, provide effort, and exercise inhibition when necessary. An inability to complete these tasks is suggestive of frontal lobe dysfunction, specifically dysfunction in the left frontal cortex (Gouveia, Brucki, Malheiros, & Bueno, 2007). In phonological fluency tasks, individuals are asked to produce words corresponding with a specific letter of the alphabet (e.g., F), while semantic fluency tasks involve producing words corresponding with a target category of items (e.g., animals; Henry & Crawford, 2004a).…”

Section: Introductionmentioning

confidence: 99%

Verbal fluency tests: Normative data for the Latin American Spanish speaking adult population

Olabarrieta‐Landa

Rivera

Galarza-Del-Angel

et al. 2015

NRE

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Abstract. OBJECTIVE:To generate normative data for the Verbal Fluency Tests across 11 countries in Latin America, with country-specific adjustments for gender, age, and education, where appropriate. METHOD: The sample consisted of 3,977 healthy adults who were recruited from Argentina, Bolivia, Chile, Cuba, El Salvador, Guatemala, Honduras, Mexico, Paraguay, Peru, and, Puerto Rico. Each subject was administered the Verbal Fluency Test as part of a larger neuropsychological battery. A standardized five-step statistical procedure was used to generate the norms. RESULTS:The final multiple linear regression models for the letter F explained 8-30% of the variance, 7-32% for letter A, 8-32% for the letter S, and 16-43% for the animal category in Verbal Fluency Test scores. Although t-tests showed significant differences between men and women on the Verbal Fluency Test, they did not have an effect size larger than 0.3. As a result, gender-adjusted norms were not generated.

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Disorders in planning and strategy application in frontal lobe lesion patients

Cited by 68 publications

References 30 publications

Enhancement of Planning Ability by Transcranial Direct Current Stimulation

Enhancement of Planning Ability by Transcranial Direct Current Stimulation

Verbal fluency tests: Normative data for Spanish-speaking pediatric population

Verbal fluency tests: Normative data for the Latin American Spanish speaking adult population

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