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Running head: BENCHMARK ARTICLE REVIEW 1Benchmark: Article ReviewAzucena Trujillo Fuentes Grand Canyon University: PSY-402December 15th, 2018
BENCHMARK ARTICLE REVIEW 2Benchmark: Article Review Fluid intelligence is the ability to generate, transform, and manipulate information about a problem or decision. Fluid abilities has shown to increase throughout young adulthood and slowing decline in the middle of adulthood until old age (Anum, 2007). Parkinson’s disease (PD)is a “common, age-dependent neurodegenerative disorder caused by a severe loss of the nigrostriatal dopaminergic neurons,” (Bhalsing, Abbas, & Tan, 2018). Along with motor symptoms, cognitive impairments also arise leading to difficulty of problem solving, organizing, and multitasking (Bhalsing, Abbas, & Tan, 2018). The following paper will review The Relationship Between Executive Functions and Fluid Intelligence in Parkinson’s Disease peer-reviewed article and address the main concepts of the study conducted. Major Findings/ConclusionsIn the article, The Relationship Between Executive Functions and Fluid Intelligence in Parkinson’s Disease created a study demonstrating that the decline in fluid intelligence plays a role in the frontal lobe deficits in Parkinson’s disease patients(Roca et al., 2012). For executive tasks conducted by the participants such as verbal fluency, deficits were not present once fluid intelligence was introduced. On the other hand, when participants were presented with tasks involving multitasking and theory of mind (infer other people’s thoughts and feelings), deficits inthe brain remained long after fluid intelligence was introduced (Roca et al., 2012). Although, they confirmed that deficits regarding multitasking and theory of mind shown in Parkinson’s disease patients cannot be explained by their loss of fluid intelligence. Lesion and neuroimaging studies were further conducted and explained that the impairment of these functions was due to “the progressive deterioration of frontostriatal circuits that occurs during the course of the disease,” (Roca et al., 2012). It was concluded that deficits detected by such tasks may not be
BENCHMARK ARTICLE REVIEW 3

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