Brain activation and pupil response during covert performance of the Stroop Color Word task

1999 ◽  
Vol 5 (4) ◽  
pp. 308-319 ◽  
Author(s):  
GREGORY G. BROWN ◽  
SANDRA S. KINDERMANN ◽  
GREG J. SIEGLE ◽  
ERIC GRANHOLM ◽  
ERIC C. WONG ◽  
...  

Patterns of brain activation associated with covert performance of the Stroop Color–Word task were studied in young, healthy, adult volunteers using blood oxygen level dependent (BOLD) functional magnetic resonance imaging (fMRI). Comparisons of the incongruous Stroop condition were made with both color naming and word reading baselines. Areas of the left and right anterior cingulate, the right precuneus, and the left pars opercularis displayed larger BOLD signal responses during the incongruous Stroop condition than during baseline conditions. Activation of BOLD signals in these areas was highly repeatable. In a second experiment, pupil diameter was used to assess cognitive load in 7 individuals studied during overt and covert performance of both Stroop and color naming conditions. Cognitive load was similar in overt and covert response conditions. Results from the BOLD study indicate that brain regions participating in selective visual attention and in the selection of motor programs involved in speech were activated more by the Stroop task than by the baseline tasks. The neural substrate involved in the resolution of the perceptual and motor conflicts elicited by the Stroop Color–Word task does not appear to be a single brain region. Rather, a network of brain regions is implicated, with separate regions within this system supporting distinct functions. (JINS, 1999, 5, 308–319.)

Healthcare ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 412
Author(s):  
Li Cong ◽  
Hideki Miyaguchi ◽  
Chinami Ishizuki

Evidence shows that second language (L2) learning affects cognitive function. Here in this work, we compared brain activation in native speakers of Mandarin (L1) who speak Japanese (L2) between and within two groups (high and low L2 ability) to determine the effect of L2 ability in L1 and L2 speaking tasks, and to map brain regions involved in both tasks. The brain activation during task performance was determined using prefrontal cortex blood flow as a proxy, measured by functional near-infrared spectroscopy (fNIRS). People with low L2 ability showed much more brain activation when speaking L2 than when speaking L1. People with high L2 ability showed high-level brain activation when speaking either L2 or L1. Almost the same high-level brain activation was observed in both ability groups when speaking L2. The high level of activation in people with high L2 ability when speaking either L2 or L1 suggested strong inhibition of the non-spoken language. A wider area of brain activation in people with low compared with high L2 ability when speaking L2 is considered to be attributed to the cognitive load involved in code-switching L1 to L2 with strong inhibition of L1 and the cognitive load involved in using L2.


2010 ◽  
Vol 2010 ◽  
pp. 1-6 ◽  
Author(s):  
M. G. Tana ◽  
E. Montin ◽  
S. Cerutti ◽  
A. M. Bianchi

Functional magnetic resonance imaging (fMRI) was performed in eight healthy subjects to identify the localization, magnitude, and volume extent of activation in brain regions that are involved in blood oxygen level-dependent (BOLD) response during the performance of Conners' Continuous Performance Test (CPT). An extensive brain network was activated during the task including frontal, temporal, and occipital cortical areas and left cerebellum. The more activated cluster in terms of volume extent and magnitude was located in the right anterior cingulate cortex (ACC). Analyzing the dynamic trend of the activation in the identified areas during the entire duration of the sustained attention test, we found a progressive decreasing of BOLD response probably due to a habituation effect without any deterioration of the performances. The observed brain network is consistent with existing models of visual object processing and attentional control and may serve as a basis for fMRI studies in clinical populations with neuropsychological deficits in Conners' CPT performance.


2017 ◽  
Vol 47 (2) ◽  
pp. 255-269 ◽  
Author(s):  
Ching-I Lu ◽  
Margaret L. Greenwald ◽  
Yung-Yang Lin ◽  
Susan M. Bowyer

Temporal and spatial analyses of brain function with magnetoencephalography (MEG) are seldom reported in studies of musical sight-reading. We used MEG to compare the timing and localization of brain regions active during print-to-sound translation of musical notation versus English letters. MEG recordings were made on 22 professional musicians during print-to-sound tasks involving low versus high cognitive load. The MEG data were analyzed using MR-FOCUSS, a current density imaging technique. A laterality index was calculated to determine which hemisphere had more neural activation during these music and language reading tasks, and showed brain activation more lateralized to the language dominant (left) hemisphere in these right-handed musicians. Both note and letter reading tasks required translation to phonological codes and activated left hemisphere language areas. Also, the superior parietal cortex was a region of interest bilaterally. The high temporal resolution of MEG, coupled with its spatial resolution, proved sensitive to differences in cognitive load in reading both letters and musical notes. MEG will be useful in future studies of how brain structure or function may change as a result of learning music.


1988 ◽  
Vol 67 (1) ◽  
pp. 187-192 ◽  
Author(s):  
Loring J. Ingraham ◽  
Frances Chard ◽  
Marcia Wood ◽  
Allan F. Mirsky

We present normative data from a Hebrew language version of the Stroop color-word test. In this sample of college-educated Israeli young adults, 18 women and 28 men with a mean age of 28.4 yr. completed a Hebrew language Stroop test. When compared with 1978 English language norms of Golden, Hebrew speakers were slower on color-word reading and color naming, similar on naming the color of incongruently colored names of colors, and showed less interference. Slowed color-word reading and color-naming may reflect the two-syllable length of the Hebrew names for one-syllable length English language colors; reduced interference may reflect the exclusion of vowels in much Hebrew printing and subjects' ability to provide competing, nonconflicting words while naming the color of words in which the hue and the lexical content do not match.


1983 ◽  
Vol 56 (2) ◽  
pp. 643-651 ◽  
Author(s):  
Lucinda McClain

The effect of prior word and/or color activation on subsequent color naming was examined in a discrete-trials Stroop task. Both word and color primes increased color-word interference, and the magnitude of the priming effect increased as the number of priming dimensions increased. The maximal interference usually produced by incongruent Stroop stimuli was reduced when such stimuli were preceded by primes which activated both word and color dimensions. The results were discussed in terms of models which attribute color-word interference to the relative speed of word reading and color naming.


1975 ◽  
Vol 41 (1) ◽  
pp. 239-242 ◽  
Author(s):  
Patricia A. Fournier ◽  
Madeline M. Mazzarella ◽  
Morena M. Ricciardi ◽  
Allan L. Fingeret

Color-word interference as a function of reading level was studied with 20 3rd and 4th graders. An equal amount of interference with color naming due to presentation of colors in a verbal form was found for both good ( n = 10) and poor ( n = 10) reading levels. Additional interference due to presentation of colors in conflicting color names was found only for good readers. Differences in reading comprehension rather than general reading ability were proposed to account for differences between good and poor readers.


1983 ◽  
Vol 57 (3) ◽  
pp. 879-882 ◽  
Author(s):  
Ann Taylor ◽  
P. B. Clive

16 subjects performed a conventional chart-form and a card-sorting form of the Stroop color-word interference test. Interference scores on the two forms were positively and significantly correlated, while neither word reading nor color naming scores showed a significant correlation. It is suggested that the ‘Stroop effect’ has some, but limited, generality and that forms not requiring verbal response may be more useful than the traditional chart version in providing a general measure of interference proneness.


2018 ◽  
Vol 30 (4) ◽  
pp. 514-525 ◽  
Author(s):  
Sara B. Pillay ◽  
William L. Gross ◽  
William W. Graves ◽  
Colin Humphries ◽  
Diane S. Book ◽  
...  

Understanding the neural basis of recovery from stroke is a major research goal. Many functional neuroimaging studies have identified changes in brain activity in people with aphasia, but it is unclear whether these changes truly support successful performance or merely reflect increased task difficulty. We addressed this problem by examining differences in brain activity associated with correct and incorrect responses on an overt reading task. On the basis of previous proposals that semantic retrieval can assist pronunciation of written words, we hypothesized that recruitment of semantic areas would be greater on successful trials. Participants were 21 patients with left-hemisphere stroke with phonologic retrieval deficits. They read words aloud during an event-related fMRI paradigm. BOLD signals obtained during correct and incorrect trials were contrasted to highlight brain activity specific to successful trials. Successful word reading was associated with higher BOLD signal in the left angular gyrus. In contrast, BOLD signal in bilateral posterior inferior frontal cortex, SMA, and anterior cingulate cortex was greater on incorrect trials. These data show for the first time the brain regions where neural activity is correlated specifically with successful performance in people with aphasia. The angular gyrus is a key node in the semantic network, consistent with the hypothesis that additional recruitment of the semantic system contributes to successful word production when phonologic retrieval is impaired. Higher activity in other brain regions during incorrect trials likely reflects secondary engagement of attention, working memory, and error monitoring processes when phonologic retrieval is unsuccessful.


1996 ◽  
Vol 83 (3_suppl) ◽  
pp. 1319-1329
Author(s):  
Satoko Ikeda

Some previous researchers assumed that the underlying process of inhibition is similar in the modally pure target-distractor task, e.g., picture-picture task, color-color task, and in the modally mixed target-distractor task, such as the picture-word task or the color-word task, but some did not. The present purpose was to compare the inhibition in the modally pure tasks (word-word task and picture-picture task) with that in the modally mixed task (picture-word task) through the effects of the two factors, that is, response set and the semantic relation between target and distractor. These factors were assumed to affect inhibition in some kinds of interference tasks. Analysis showed the effect of response set was evident on the picture-picture task but not on the word-word and the picture-word tasks. On the picture-word task, only when the distracting word was in the same set of the target picture, was the effect of the semantic relation exhibited. The differential inhibition for the three tasks was discussed.


2011 ◽  
Vol 16 (4) ◽  
pp. 446-452 ◽  
Author(s):  
Jeanette Altarriba ◽  
Dana M. Basnight-Brown

The purpose of the current work was to investigate whether wordtype moderates the learning of vocabulary words in a new language. English-speaking monolinguals were trained on a matched set of concrete (e.g., jewel), emotion (e.g., angry), and abstract (e.g., virtue) words in Spanish. Participants learned a set of Spanish words and then engaged in a Stroop color-word task where they determined the color in which the words appeared (none were related to color). They also engaged in a translation recognition task where foils included semantic associates of the newly acquired word. Results indicated that although the semantic representations of all three wordtypes were acquired, there was a gradient in the degree to which those meanings were automatically activated. The pattern of data indicated that newly learned emotion words vs. non-emotion words produced faster color naming times, longer recognition times, and higher error rates in recognition.


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