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Author

Robert Gaschler

Other affiliations: Humboldt University of Berlin, FernUniversität Hagen, Charité  ...read more
Bio: Robert Gaschler is an academic researcher from Rolf C. Hagen Group. The author has contributed to research in topics: Task (project management) & Sequence learning. The author has an hindex of 18, co-authored 74 publications receiving 737 citations. Previous affiliations of Robert Gaschler include Humboldt University of Berlin & FernUniversität Hagen.


Papers
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Journal ArticleDOI
08 Apr 2015-Neuron
TL;DR: It is suggested that MPFC might internally simulate alternative strategies and shed new light on the organization of PFC, to predict spontaneous strategy shifts ahead of time.

99 citations

Journal ArticleDOI
TL;DR: The present data show that the instructed S–R mappings influence performance on the embedded B-task, even when they have never been practiced, and are irrelevant with respect to the B- task.
Abstract: In order to test whether or not instructions specifying the stimulus–response (S–R) mappings for a new task suffice to create bindings between specified stimulus and response features, we developed a dual task paradigm of the ABBA type in which participants saw new S–R instructions for the A-task in the beginning of each trial. Immediately after the A-task instructions, participants had to perform a logically independent B-task. The imperative stimulus for the A-task was presented after the B-task had been executed. The present data show that the instructed S–R mappings influence performance on the embedded B-task, even when they (1) have never been practiced, and (2) are irrelevant with respect to the B-task. These results imply that instructions can induce bindings between S- and R-features without prior execution of the task at hand.

78 citations

Journal ArticleDOI
TL;DR: The results suggest that participants strategically control whether or not they implement verbal instructions, and once implemented, instructed S–R associations influence behaviour even when the instructed mappings are no longer task relevant.
Abstract: Temporal and strategic factors that might influence the transformation of verbal task rules into functional stimulus–response associations were investigated in three experiments. In a dual task paradigm of the ABBA type participants were presented new S–R instructions for the A-task at the beginning of each trial. On varying proportions of trials No-go signals rendered the instructed A-task mappings irrelevant before instruction implementation was assessed during performance of an unrelated B-task. Our results indicate that participants refrain from implementing the mappings during instruction presentation when No-go signals appear frequently and late (Exp. 2), and that they can interrupt implementing instructed S–R mappings when frequent No-go signals appear early enough during implementation (Exp. 3). When No-go signals are rare and late, however (Exp. 1), the instructed stimulus features always activate their associated responses during performance of the embedded B-task in an automatic manner. Together, these findings suggest that participants strategically control whether or not they implement verbal instructions. Once implemented, however, instructed S–R associations influence behaviour even when the instructed mappings are no longer task relevant.

42 citations

Journal ArticleDOI
TL;DR: A paradigm that allows the mode of action control to be varied via instructions while keeping stimuli identical is developed, and the impact of action effect compatibility on speed and choice of action as a measure for action effect anticipation is employed.
Abstract: Automatic acquisition of action effect associations may serve as a parsimonious account of how people acquire the basis for intentionally controlled action. However, recent research suggests that learning or the expression of action effect links might depend on whether task demands impose either a stimulus based mode of action control or an intention based action control mode. In the current study we develop a paradigm that allows the mode of action control to be varied via instructions while keeping stimuli identical. Participants were to respond to the location of a cloud of dots. Their actions were followed by predictable visual effects, either consistently congruent or incongruent with the location of the action. In Experiment 1, a displaced new cloud of random dots was presented as a spatial action effect. In Experiment 2 an arrow was presented as effect with a pointing direction congruent or incongruent to the response position. The location of the stimulus in the reference frame was easy to detect in some of the trials while the location of the cloud of dots was completely ambiguous in others. The instruction manipulation targeted the latter trials, suggesting to one group of participants to freely choose a key in a difficult trial, while asking another group to react to their spontaneous impression in the event of a difficult stimulus. In this way, we aimed at rendering actions either as stimulus driven or internally generated. By this we could investigate how effect anticipation changed with practice depending on action mode. We employed the impact of action effect compatibility on speed and choice of action as a measure for action effect anticipation. Our results suggest that action effect associations can be acquired when instructions suggest stimulus based action control or intention based action control. Instructions aiming at the mode of task processing can influence when and how action effect links influence behavior.

35 citations


Cited by
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Journal Article

4,293 citations

Book ChapterDOI
01 Jan 2001
TL;DR: A wide variety of media can be used in learning, including distance learning, such as print, lectures, conference sections, tutors, pictures, video, sound, and computers.
Abstract: A wide variety of media can be used in learning, including distance learning, such as print, lectures, conference sections, tutors, pictures, video, sound, and computers. Any one instance of distance learning will make choices among these media, perhaps using several.

2,940 citations

01 Jan 2016
TL;DR: This application applied longitudinal data analysis modeling change and event occurrence will help people to enjoy a good book with a cup of coffee in the afternoon instead of facing with some infectious virus inside their computer.
Abstract: Thank you very much for downloading applied longitudinal data analysis modeling change and event occurrence. As you may know, people have look hundreds times for their favorite novels like this applied longitudinal data analysis modeling change and event occurrence, but end up in malicious downloads. Rather than enjoying a good book with a cup of coffee in the afternoon, instead they are facing with some infectious virus inside their computer.

2,102 citations

01 Jan 2016
TL;DR: The mental representations a dual coding approach is universally compatible with any devices to read, and is available in the digital library an online access to it is set as public so you can download it instantly.
Abstract: mental representations a dual coding approach is available in our digital library an online access to it is set as public so you can download it instantly. Our digital library saves in multiple countries, allowing you to get the most less latency time to download any of our books like this one. Kindly say, the mental representations a dual coding approach is universally compatible with any devices to read.

963 citations

Journal ArticleDOI
TL;DR: It is argued that the major control operations may take place long before a stimulus is encountered (the prepared-reflex principle), that stimulus-response translation may be more automatic than commonly thought, that action selection and execution are more interwoven than most approaches allow, and that the acquisition of action-contingent events is likely to subserve both the selection and the evaluation of actions.
Abstract: The theory of event coding (TEC) is a general framework explaining how perceived and produced events (stimuli and responses) are cognitively represented and how their representations interact to generate perception and action. This article discusses the implications of TEC for understanding the control of voluntary action and makes an attempt to apply, specify, and concretize the basic theoretical ideas in the light of the available research on action control. In particular, it is argued that the major control operations may take place long before a stimulus is encountered (the prepared-reflex principle), that stimulus-response translation may be more automatic than commonly thought, that action selection and execution are more interwoven than most approaches allow, and that the acquisition of action-contingent events (action effects) is likely to subserve both the selection and the evaluation of actions.

502 citations