Related Experiment Video
Updated: Feb 17, 2026

Modulating Cognition Using Transcranial Direct Current Stimulation of the Cerebellum
Published on: February 15, 2015
Does previous presentation of verbal fluency tasks affect verb fluency performance?
Bárbara Costa Beber1, Márcia L F Chaves1,2
1Dementia Clinic, Neurology Service, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre RS, Brazil.
Background:
Performance on the verb fluency (VF) task may be influenced by administration procedures and demographic factors of each population.
Objective:
The aim of this study was to verify whether the previous administration of semantic and phonemic verbal fluency tasks can influence performance on VF; and to analyze the correlation of VF performance with education, age and type of errors in Brazilian healthy elderly.
Methods:
Sixty-two participants were subdivided into experimental (semantic and the phonemic fluency tasks were administered before the VF) and control groups (VF only). The total score and the types of errors on the VF task were determined. Additional information was computed for the correlational analysis.
Results:
VF performance did not differ statistically between experimental and control groups, but correlated positively with education and negatively with intrusions.
Conclusion:
The lack of influence of other verbal fluency tasks on performance of the VF task in elderly individuals allows the use of this order of administration. A strong influence of educational level on VF task performance reinforces the need for further studies in different populations.
Related Concept Videos
Framing Effects
Higher Mental Functions of the Brain: Language
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
Language and Cognition

