Eye position predicts what number you have in mind

Loetscher, Tobias; Bockisch, Christopher J.; Nicholls, Michael E. R.; Brugger, Peter

doi:10.1016/j.cub.2010.01.015

Cited by 156 publications

(125 citation statements)

References 9 publications

Supporting

Mentioning

113

Contrasting

Unclassified

Order By: Relevance

“…Bachmann, V; Fischer, M H; Landolt, H P; Brugger, P Bachmann, V; Fischer, M H; Landolt, H P; Brugger, P (2010 …”

Section: Asymmetric Prefrontal Cortex Functions Predict Asymmetries Imentioning

confidence: 99%

“…For example, addition and subtraction operations are linked to neural circuits in the bilateral posterior parietal lobules that also represent right-and left-directed eye movements (Knops, Thirion, Hubbard, Michel, & Dehaene, 2009). Arithmetic operations can thus be likened to movements, both of the eyes and of the attentional focus, along the mental number line (Loetscher, Bockisch, Nicholls, & Brugger, 2010;Pinhas & Fischer, 2008). Moreover, patients suffering from left spatial neglect can misplace the midpoint of a numerical intervals to the right of the real midpoint (Zorzi, Priftis, & Umilta, 2002;Zorzi et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

“…

Asymmetric prefrontal cortex functions predict asymmetries in number spaceBachmann, V; Fischer, M H; Landolt, H P; Brugger, P Bachmann, V; Fischer, M H; Landolt, H P; Brugger, P (2010

AbstractLittle is known about the neuropsychological factors that contribute to individual differences in the asymmetric orientation along the mental number line. The present study documents healthy subjects' preference for small numbers over large numbers in a random number generation task.

…”

mentioning

confidence: 99%

See 2 more Smart Citations

Asymmetric prefrontal cortex functions predict asymmetries in number space

Bachmann

Fischer

Landolt

et al. 2010

Brain and Cognition

Self Cite

View full text Add to dashboard Cite

Asymmetric prefrontal cortex functions predict asymmetries in number spaceBachmann, V; Fischer, M H; Landolt, H P; Brugger, P Bachmann, V; Fischer, M H; Landolt, H P; Brugger, P (2010 AbstractLittle is known about the neuropsychological factors that contribute to individual differences in the asymmetric orientation along the mental number line. The present study documents healthy subjects' preference for small numbers over large numbers in a random number generation task. This preference, referred to as "small number bias" (SNB), varied with prefrontal functional lateralization: it was larger in participants with over-proportionately better performance in design fluency compared to letter fluency than in participants with overproportionately better performance in letter fluency when compared to design fluency.Asymmetries in learning and memory tasks (verbal vs. non-verbal) were not related to direction or size of the SNB. We conclude that hemispheric asymmetries of specifically prefrontal executive functions are predictive of an individual's lateral orientation bias along the mental number line. Therefore, the focus on parietal contributions to spatial-numerical associations may not be justified. Random number generation may be a helpful method to further explore these associations uncontaminated by the asymmetric involvement of response effectors.

show abstract

“…Bachmann, V; Fischer, M H; Landolt, H P; Brugger, P Bachmann, V; Fischer, M H; Landolt, H P; Brugger, P (2010 …”

Section: Asymmetric Prefrontal Cortex Functions Predict Asymmetries Imentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…

Asymmetric prefrontal cortex functions predict asymmetries in number spaceBachmann, V; Fischer, M H; Landolt, H P; Brugger, P Bachmann, V; Fischer, M H; Landolt, H P; Brugger, P (2010

…”

mentioning

confidence: 99%

See 1 more Smart Citation

Asymmetric prefrontal cortex functions predict asymmetries in number space

Bachmann

Fischer

Landolt

et al. 2010

Brain and Cognition

Self Cite

View full text Add to dashboard Cite

show abstract

“…Such ''oculomotor SNARC effects'' are not only reflected in saccadic response times, but also in spontaneously adopted gaze positions. Loetscher et al (2010) showed that eye gaze position in the dark drifts rightward and upward when relatively larger numbers (i.e., numbers preceded by a smaller number) are called out in a random number generation task; similarly, the participant's gaze drifts leftward and downward for relatively small numbers). In this issue, Myachykov et al (2016) show that such numberinduced ocular drifts occur even then when participants fixate a central visual stimulus on the screen (Experiment 1) or when they are engaged in an additional saccade task (Experiment 2), suggesting that the processing of numerical magnitudes leads to inescapable interference with eye movement control (a phenomenon they labelled oculomotor resonance effect).…”

Section: Development and Impairments Of Number Conceptsmentioning

confidence: 99%

Exploring the numerical mind by eye-tracking: a special issue

Hartmann

Fischer

2016

Psychological Research

View full text Add to dashboard Cite

“…On the basis of evidence for left-to-right orientation of number in Westerners, and that gaze patterns reflect this orientation (Hartmann et al, 2015;Loetscher, Bockisch, & Brugger, 2008;Loetscher, Bockisch, Nicholls, & Brugger, 2010), we expected that smaller-value and larger-value hands would elicit more leftward and rightward eye movements, respectively. Because vertical orientation of number has also been observed (e.g., Hartmann, Gashaj, Stahnke, & Mast, 2014;Loetscher et al, 2010;Winter & Matlock, 2013; for discussion of mixed findings, see Hartmann et al, 2014;Holmes & Lourenco, 2012), we assessed whether upward and downward eye movements also reflected the value of participants' hands.…”

mentioning

confidence: 99%

Gamble on gaze: Eye movements reflect the numerical value of blackjack hands

2016

View full text Add to dashboard Cite

We used a novel task-a blackjack game that naturally involves mental summation of numerical values-to investigate the role of attention in the mental number line (MNL) and to provide insight into the ecological validity of this representational format. By analyzing the spatial position of participants' spontaneous, task-irrelevant eye movements, we avoided some of the limitations of previous research on the MNL, in which the findings could be attributed to taskspecific factors such as the use of overt spatial cues. In two experiments, we found that eye movements along the horizontal axis reflected the overall numerical value of participants' hands, with smaller-value hands eliciting fixations toward the left of the screen and larger-value hands eliciting fixations toward the right. This pattern held even when controlling for the number of cards in the hand and the value of the card most recently dealt-suggesting that the effects were driven by mental summation of values, not merely by the processing of serial order or individual numbers. Vertical eye movements, in contrast, reflected hand value less reliably. In showing that spontaneous eye movements along the horizontal axis track the magnitude of internally computed sums in an ecologically relevant task, our findings provide evidence for a dynamic MNL that supports magnitude-driven shifts of attention and that may be recruited during everyday forms of numerical reasoning.

show abstract

Eye position predicts what number you have in mind

Cited by 156 publications

References 9 publications

Asymmetric prefrontal cortex functions predict asymmetries in number space

Asymmetric prefrontal cortex functions predict asymmetries in number space

Exploring the numerical mind by eye-tracking: a special issue

Gamble on gaze: Eye movements reflect the numerical value of blackjack hands

Contact Info

Product

Resources

About