Perceptual contributions to problem solving: Chunk decomposition of Chinese characters

Luo, Jing; Niki, Kiyomi; Knoblich, Günther

doi:10.1016/j.brainresbull.2006.07.005

Cited by 69 publications

(116 citation statements)

References 45 publications

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“…This difference is likely because Chinese characters (especially the Chinese pictophonetic characters) exhibit more visual features and prominence during processing compared to English words. However, Luo et al [16] did not observe marked activation in the fusiform gyrus using a Chinese characters chunk decomposition task. Second, the fusiform gyrus is an important brain area that is responsible for face recognition [53,54].…”

Section: Hippocampus Superior Temporal Gyrus and Fusiform Gyrusmentioning

confidence: 91%

“…Luo et al [16] employed a Chinese characters chunk decomposition task to examine the role of PFC in insight problem solving. These authors asked participants to decode two Chinese characters and form two new Chinese characters.…”

Section: Prefrontal Cortex (Pfc)mentioning

confidence: 99%

“…Therefore, the STG may represent the formation of the novel remote semantic associations that underlie insight problem solving. Luo et al [10,15,16,29] also observed activation in the right STG or its neighboring brain regions in the riddle guessing task and the chunk decomposition of Chinese characters task. The process that the subjects used to solve a list of puzzles that were constructed by different principles significantly activated the right STG (mainly BA 38) relative to the resting state, but the process of solving puzzles that were constructed using the same principle did not activate the STG or nearby areas relative to the resting state [29].…”

Section: Hippocampus Superior Temporal Gyrus and Fusiform Gyrusmentioning

confidence: 99%

“…The activation in the right STG was negative in both the LCD and the TCD conditions, but it was more negative in the LCD condition. TCD problems are considered insight problems, and the LCD problems are considered routine problems [16]. Routine (LCD) problem solving exhibited more negative activation in the right STG, which suggests that insight (TCD) problem solving exhibited less activation in this region.…”

Section: Hippocampus Superior Temporal Gyrus and Fusiform Gyrusmentioning

confidence: 99%

“…These authors demonstrated that when the answers were presented to subjects, the solutions to brainteasers, which require the breaking of mental set and the transformation of conventional thinking, significantly activated the right, but not the left, precuneus. Luo et al [16] further investigated the roles of the cuneus and precuneus in insight problem solving using a novel chunk decomposition task. Chunk decomposition of TCD problems significantly and negatively activated the right cuneus compared to LCD problems.…”

Section: Precuneus and Cuneusmentioning

confidence: 99%

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New advances in the neural correlates of insight: A decade in review of the insightful brain

et al. 2012

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The first neuroimaging study of real-time brain activity during insight problem solving was conducted almost ten years ago. Many subsequent studies have used high-resolution event-related potentials (ERPs) and event-related functional magnetic resonance imaging (fMRI) to investigate the temporal dynamics and neural correlates of insight. Recent results on the neural underpinnings of insight have led researchers to propose a neural framework referred to as the "insightful brain". This putative framework represents the neural basis of the cognitive and affective processes that are involved in insight. The insightful brain may involve numerous brain regions, including the lateral prefrontal cortex, cingulate cortex, hippocampus, superior temporal gyrus, fusiform gyrus, precuneus, cuneus, insula and cerebellum. Functional studies have demonstrated that the lateral prefrontal cortex is responsible for mental set shifting and breaking during insight problem solving. The cingulate cortex is involved in the cognitive conflict between new and old ideas and progress monitoring. The hippocampus, superior temporal gyrus and fusiform gyrus form an integrated functional network that specializes in the formation of novel and effective associations. The effective transformation of problem representations depends on a non-verbal visuospatial information-processing network that comprises the precuneus and cuneus. The insula reflects cognitive flexibility and the emotional experience that is associated with insight. The cortical control of finger movements relies on the cerebellum. insight problem solving, insightful brain, creative thinking, neuroimaging, event-related potentials

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Section: Hippocampus Superior Temporal Gyrus and Fusiform Gyrusmentioning

confidence: 91%

Section: Prefrontal Cortex (Pfc)mentioning

confidence: 99%

Section: Hippocampus Superior Temporal Gyrus and Fusiform Gyrusmentioning

confidence: 99%

Section: Hippocampus Superior Temporal Gyrus and Fusiform Gyrusmentioning

confidence: 99%

Section: Precuneus and Cuneusmentioning

confidence: 99%

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New advances in the neural correlates of insight: A decade in review of the insightful brain

et al. 2012

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Distinct brain network organizations between club players and novices under different difficulty levels

Leong,

Zhao,

Yuan

et al. 2024

Brain and Behavior

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SignificantChunk memory is one of the essential cognitive functions for high‐expertise (HE) player to make efficient decisions. However, it remains unknown how the neural mechanisms of chunk memory processes mediate or alter chess players’ performance when facing different opponents.AimThis study aimed at inspecting the significant brain networks associated with chunk memory, which would vary between club players and novices.ApproachFunctional networks and topological features of 20 club players (HE) and 20 novice players (LE) were compared at different levels of difficulty by means of functional near‐infrared spectroscopy.ResultsBehavioral performance indicated that the club player group was unaffected by differences in difficulty. Furthermore, the club player group demonstrated functional connectivity among the dorsolateral prefrontal cortex, the frontopolar cortex, the supramarginal gyrus, and the subcentral gyrus, as well as higher clustering coefficients and lower path lengths in the high‐difficulty task.ConclusionsThe club player group illustrated significant frontal–parietal functional connectivity patterns and topological characteristics, suggesting enhanced chunking processes for improved chess performance.

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The role of chunk tightness and chunk familiarity in problem solving: Evidence from ERPs and fMRI

Wu¹,

Knoblich²,

Luo³

2012

Human Brain Mapping

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Multiple factors of task difficulty keep problem solvers from finding the crucial thinking steps required to solve insight problems. In this study, we distinguished two difficulty factors, chunk familiarity and chunk tightness, and investigated their effects on chunk decomposition--a specific type of insight that depends on the process of breaking up perceptual patterns or chunks into elements so that they can be reorganized to form a new meaning. Subjects solved problems that required decomposing Chinese characters that differed in chunk familiarity and chunk tightness. Brain activity was recorded using the electroencephalogram and functional magnetic resonance imaging. The results showed that chunk familiarity could be overcome through an inhibition of familiar meanings, whereas overcoming chunk tightness required visual-spatial processing. Furthermore, chunk familiarity posed an additional difficulty when chunk tightness was high. This result demonstrates that the difficulty sources in a problem do not always simply add up. Rather, the difficulty of a problem can reside in the interaction of particular sources of difficulty.

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Perceptual contributions to problem solving: Chunk decomposition of Chinese characters

Cited by 69 publications

References 45 publications

New advances in the neural correlates of insight: A decade in review of the insightful brain

New advances in the neural correlates of insight: A decade in review of the insightful brain

Distinct brain network organizations between club players and novices under different difficulty levels

The role of chunk tightness and chunk familiarity in problem solving: Evidence from ERPs and fMRI

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