Number is special: time, space, and number interact in a temporal reproduction task

Mehlabani, Somayyeh Nourouzi; Sabaghypour, Saied; Nazari, Mohammad Ali

doi:10.1007/s10339-020-00968-6

Cited by 9 publications

(3 citation statements)

References 85 publications

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“…Nourouzi Mehlabani et al 33 showed that the human premotor cortex was associated with counting, and early computing ability laid the foundation for acquiring mathematical skills. Botdorf and Riggins 34 found that early computing ability in children and adult cognitive ability may be associated with the frontoparietal network.…”

Section: Discussionmentioning

confidence: 99%

Muscimol-induced inactivation of the ventral prefrontal cortex impairs counting performance in rhesus monkeys

Sun

2022

Science Progress

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Numbers are one of the three basic concepts of human abstract thinking. When human beings count, they often point to things, one by one, and read numbers in a positive integer column. The prefrontal cortex plays a wide range of roles in executive functions, including active maintenance and achievement of goals, adaptive coding and exertion of general intelligence, and completion of time complexity events. Nonhuman animals do not use number names, such as “one, two, three,” or numerals, such as “1, 2, 3” to “count” in the same way as humans do. Our previous study established an animal model of counting in monkeys. Here, we used this model to determine whether the prefrontal cortex participates in counting in monkeys. Two 5-year-old female rhesus monkeys (macaques), weighing 5.0 kg and 5.5 kg, were selected to train in a counting task, counting from 1 to 5. When their counting task performance stabilized, we performed surgery on the prefrontal cortex to implant drug delivery tubes. After allowing the monkeys’ physical condition and counting performance to recover, we injected either muscimol or normal saline into their dorsal and ventral prefrontal cortex. Thereafter, we observed their counting task performance and analyzed the error types and reaction time during the counting task. The monkeys’ performance in the counting task decreased significantly after muscimol injection into the ventral prefrontal cortex; however, it was not affected after saline injection into the ventral prefrontal cortex, or after muscimol or saline injection into the dorsal prefrontal cortex. The ventral prefrontal cortex of the monkey is necessary for counting performance.

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Section: Discussionmentioning

confidence: 99%

Muscimol-induced inactivation of the ventral prefrontal cortex impairs counting performance in rhesus monkeys

Sun

2022

Science Progress

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“…Many studies that explored numerical representations assume the existence of a mental number line (MNL), wherein numbers and quantities are organized spatially. A well-established tradition suggests that individuals translate numerical representations into corresponding spatial positions (Dehaene et al, 1993;Fias, 1996;Gevers et al, 2006;Nourouzi Mehlabani et al, 2020). Given the importance of performance in MNL for mathematical achievements (Simms et al, 2016;Nazari et al, 2021), investigating the MNL associations with cognitive and emotional factors is important for understanding the neural underpinnings of numerical cognition.…”

Section: Introductionmentioning

confidence: 99%

“…MNL suggests that individuals mentally represent numbers on a line, with smaller numbers located to the left and larger numbers located to the right (Dehaene et al, 1993;Izard and Dehaene, 2008). The numberto-position (NP) task stands as a commonly utilized method for exploring how numbers are represented on the MNL (Siegler and Opfer, 2003;Berteletti et al, 2010;Nourouzi Mehlabani et al, 2020;Nazari et al, 2021). The NP task involves presenting a number line with marked endpoints (such as 0-100) alongside a designated target number.…”

Section: Introductionmentioning

confidence: 99%

Differential roles of brain oscillations in numerical processing: evidence from resting-state EEG and mental number line

Sabaghypour,

Navi,

Basiri

et al. 2024

Front. Hum. Neurosci.

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Recent works point to the importance of emotions in special-numerical associations. There remains a notable gap in understanding the electrophysiological underpinnings of such associations. Exploring resting-state (rs) EEG, particularly in frontal regions, could elucidate emotional aspects, while other EEG measures might offer insights into the cognitive dimensions correlating with behavioral performance. The present work investigated the relationship between rs-EEG measures (emotional and cognitive traits) and performance in the mental number line (MNL). EEG activity in theta (3–7 Hz), alpha (8–12 Hz, further subdivided into low-alpha and high-alpha), sensorimotor rhythm (SMR, 13–15 Hz), beta (16–25 Hz), and high-beta/gamma (28–40 Hz) bands was assessed. 76 university students participated in the study, undergoing EEG recordings at rest before engaging in a computerized number-to-position (CNP) task. Analysis revealed significant associations between frontal asymmetry, specific EEG frequencies, and MNL performance metrics (i.e., mean direction bias, mean absolute error, and mean reaction time). Notably, theta and beta asymmetries correlated with direction bias, while alpha peak frequency (APF) and beta activity related to absolute errors in numerical estimation. Moreover, the study identified significant correlations between relative amplitude indices (i.e., theta/beta ratio, theta/SMR ratio) and both absolute errors and reaction times (RTs). Our findings offer novel insights into the emotional and cognitive aspects of EEG patterns and their links to MNL performance.

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Training the brain to time: the effect of neurofeedback of SMR–Beta1 rhythm on time perception in healthy adults

et al. 2022

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Number is special: time, space, and number interact in a temporal reproduction task

Cited by 9 publications

References 85 publications

Muscimol-induced inactivation of the ventral prefrontal cortex impairs counting performance in rhesus monkeys

Muscimol-induced inactivation of the ventral prefrontal cortex impairs counting performance in rhesus monkeys

Differential roles of brain oscillations in numerical processing: evidence from resting-state EEG and mental number line

Training the brain to time: the effect of neurofeedback of SMR–Beta1 rhythm on time perception in healthy adults

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