Tscope: A C library for programming cognitive experiments on the MS Windows platform

Stevens, Michaël; Lammertyn, Jan; Verbruggen, Frederick; Vandierendonck, André

doi:10.3758/bf03192779

Cited by 189 publications

(144 citation statements)

References 12 publications

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“…However, for completeness and to show that the experiment replicates typical taskswitching results, the main findings regarding the task-execution data obtained in this experiment are briefly presented in Appendix A. Pentium III personal computers with a 17-inch color monitor running the Tscope C/C++ library (Stevens et al, 2006) voluntary task switches were the same as those used by Arrington and Logan (2005), namely that each task should be performed about equally often and that the sequence should be as unpredictable as in coin tossing.…”

Section: Methodsmentioning

confidence: 92%

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A chain-retrieval model for voluntary task switching

Vandierendonck

Demanet

Liefooghe

et al. 2012

Cognitive Psychology

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To account for the findings obtained in voluntary task switching, this article describes and tests the chain-retrieval model. This model postulates that voluntary task selection involves retrieval of task information from long-term memory, which is then used to guide task selection and task execution. The model assumes that the retrieved information consists of acquired sequences (or chains) of tasks, that selection may be biased towards chains containing more task repetitions and that bottom-up triggered repetitions may overrule the intended task. To test this model, four experiments are reported. In Studies 1 and 2, sequences of task choices and the corresponding transition sequences (task repetitions or switches) were analyzed with the help of dependency statistics. The free parameters of the chain-retrieval model were estimated on the observed task sequences and these estimates were used to predict autocorrelations of tasks and transitions. In Studies 3 and 4, sequences of hand choices and their transitions were analyzed similarly. In all studies, the chain-retrieval model yielded better fits and predictions than statistical models of event choice. In applications to voluntary task switching (Studies 1 and 2), all three parameters of the model were needed to account for the data. When no task switching was required (Studies 3 and 4), the chain-retrieval could account for the data with one or two parameters clamped to a neutral value. Implications for our understanding of voluntary task selection and broader theoretical implications are discussed.

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Section: Methodsmentioning

confidence: 92%

“…Participants were tested individually on a PC with a 17-inch color monitor running Tscope (Stevens, Lammertyn, Verbruggen, & Vandierendonck, 2006). Instructions of Arrington and Logan (2004) were used.…”

Section: Methodsmentioning

confidence: 99%

A chain-retrieval model for voluntary task switching

Vandierendonck

Demanet

Liefooghe

et al. 2012

Cognitive Psychology

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“…Stimulus presentation and response registration was done using Tscope software (Stevens, Lammertyn, Verbruggen, & Vandierendonck, 2006). In the scanner room the task was presented A C C E P T E D M A N U S C R I P T…”

Section: Stimulimentioning

confidence: 99%

Influences of unconscious priming on voluntary actions: Role of the rostral cingulate zone

et al. 2016

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The ability to make voluntary, free choices is fundamental to what it means to be human. A key brain region that is involved in free choices is the rostral cingulate zone (RCZ), which is part of the medial frontal cortex. Previous research has shown that activity in this brain region can be modulated by bottom-up information while making free choices. The current study extends those findings, and shows, for the first time, that activation in the RCZ can also be modulated by subliminal information. We used a subliminal response priming paradigm to bias free and cued choices. We observed more activation in the RCZ when participants made a choice that went against the prime's suggestion, compared to when they chose according to the prime. This shows that the RCZ plays an important role in overcoming externally-triggered conflict between different response options, even when the stimuli triggering this conflict are not consciously perceived. Our results suggest that an important mechanism of endogenous action in the RCZ may therefore involve exerting an internally-generated action choice against conflicting influences, such as external sensory evidence. We further found that subliminal information also modulated activity in the anterior insula and the supramarginal gyrus.

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“…The Sheffield lie test was presented on a Pentium IV personal computer with a 17-inch color monitor running Tscope (Stevens, Lammertyn, Verbruggen, & Vandierendonck, 2006). Participants sat approximately 50 centimeters from the computer screen.…”

Section: Apparatusmentioning

confidence: 99%

“…computer with a 17-inch color monitor running Tscope (Stevens et al, 2006). Participants were seated approximately 50 centimeters from the screen.…”

Section: Apparatus the Sheffield Lie Test Was Presented On A Pentiummentioning

confidence: 99%

Lying relies on the truth

2014

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Cognitive models of deception focus on the conflict-inducing nature of the truth activation during lying. Here we tested the counterintuitive hypothesis that the truth can also serve a functional role in the act of lying. More specifically, we examined whether the construction of a lie can involve a two-step process, where the first step entails activating the truth, based upon which a lie response can be formulated in a second step. To investigate this hypothesis, we tried to capture the covert truth activation in a reaction-time based deception paradigm.Together with each question, we presented either the truth or lie response as distractors. If lying depends on the covert activation of the truth, deceptive responses would thus be facilitated by truth distractors relative to lie distractors. Our results indeed revealed such a "covert congruency" effect, both in errors and reaction times (Experiment 1). Moreover, stimulating participants to use the distractor information by increasing the proportion of truth distractor trials enlarged the "covert congruency" effects, and as such confirmed that the effects operate at a covert response level (Experiment 2). Our findings lend support to the idea that lying relies on a first step of truth telling, and call for a shift in theoretical thinking that highlights both the functional and interfering properties of the truth activation in the lying process.

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Tscope: A C library for programming cognitive experiments on the MS Windows platform

Cited by 189 publications

References 12 publications

A chain-retrieval model for voluntary task switching

A chain-retrieval model for voluntary task switching

Influences of unconscious priming on voluntary actions: Role of the rostral cingulate zone

Lying relies on the truth

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