scholarly journals Differences Between Intention-Based and Stimulus-Based Actions

2006 ◽  
Vol 20 (1) ◽  
pp. 9-20 ◽  
Author(s):  
Peter E. Keller ◽  
Edmund Wascher ◽  
Wolfgang Prinz ◽  
Florian Waszak ◽  
Iring Koch ◽  
...  
Keyword(s):  
Response Selection ◽  
Random Sequence ◽  
Action Planning ◽  
Neural Pathways ◽  
Movement Timing ◽  
Stimulus Response ◽  
Response Stimulus ◽  
Key Press ◽  
Electrophysiological Findings ◽  
Temporal Bisection Task

Abstract: Actions carried out in response to exogenous stimuli and actions selected endogenously on the basis of intentions were compared in terms of their behavioral (movement timing) and electrophysiological (EEG) profiles. Participants performed a temporal bisection task that involved making left or right key presses at the midpoint between isochronous pacing signals (a sequence of centrally-presented letters). In separate conditions, the identity of each letter either (1) prescribed the location of the subsequent key press response (stimulus-based) or (2) was determined by the location of the preceding key press, in which case participants were instructed to generate a random sequence of letters (intention-based). The behavioral results indicated that stimulus-based movements occurred earlier in time than intention-based movements. The EEG results revealed that activity reflecting stimulus evaluation and response selection was most pronounced in the stimulus-based condition, whereas activity associated with the general readiness to act was strongest in the intention-based condition. Together, the behavioral and electrophysiological findings provide evidence for two modes of action planning, one mediated by stimulus-response bindings and the other by action-effect bindings. The comparison of our results to those of an earlier study ( Waszak et al., 2005 ) that employed spatially congruent visuo-motor mappings rather than symbolic visuo-motor mappings suggests that intention-based actions are controlled by similar neural pathways in both cases, but stimulus-based actions are not.

Aging, Reaction Time, and Stages of Information Processing

1989 ◽  
Vol 33 (3) ◽  
pp. 174-178 ◽  
Author(s):  
Max Vercruyssen ◽  
Barbara L. Carlton ◽  
Virginia Diggles-Buckles
Keyword(s):  
Information Processing ◽  
Reaction Time ◽  
Response Selection ◽  
Reaction Time Task ◽  
Skill Levels ◽  
Stimulus Response ◽  
Age Related ◽  
Response Stimulus ◽  
Older Subjects ◽  
Stimulus Degradation

Using Sternberg's (1969) Additive Factors Method (AFM), previous investigations in search of the locus of age-related slowing in reactive capacity have found conflicting results possibly due to inconsistencies in research methodologies. This experiment was conducted to examine age differences in the performance of AFM intratask manipulations of a reaction time task using both fixed and variable foreperiod conditions with subject testing at both naive and practiced skill levels. Twenty male subjects, ten young and ten old, performed a visual four-choice RT task with intratask manipulations of stimulus-degradation, stimulus-response compatibility, and response-stimulus intervals (RSIs were fixed at 0, 2, and 5 sec and variable with random presentations at 0, 2, and 5 sec), once when subjects were naive and again when practiced. The results varied by level of practice and RSI, but clearly the older subjects had difficulty with the intratask manipulations. The older subjects took twice as long, on the average, to respond. Interactions of age by compatibility suggest that, according to the AFM, with age comes inordinately long delays in the response selection stage of information processing. Conclusions are made with caution since this research points to limitations and methodological confounds which serve to explain many of the equivocal findings in previous studies.

Flanker and Simon effects interact at the response selection stage

2009 ◽  
Vol 62 (9) ◽  
pp. 1784-1804 ◽  
Author(s):  
Barbara Treccani ◽  
Roberto Cubelli ◽  
Sergio Della Sala ◽  
Carlo Umiltà
Keyword(s):  
Response Selection ◽  
Flanker Task ◽  
Stimulus Response ◽  
Correspondence Effects ◽  
Correspondence Effect ◽  
Accessory Stimulus ◽  
Target Set ◽  
Referential Coding ◽  
Selection Stage ◽  
Effect Experiment

The present study aimed at investigating the processing stage underlying stimulus–stimulus (S–S) congruency effects by examining the relation of a particular type of congruency effect (i.e., the flanker effect) with a stimulus–response (S–R) spatial correspondence effect (i.e., the Simon effect). Experiment 1 used a unilateral flanker task in which the flanker also acted as a Simon-like accessory stimulus. Results showed a significant S–S Congruency × S–R Correspondence interaction: An advantage for flanker–response spatially corresponding trials was observed in target–flanker congruent conditions, whereas, in incongruent conditions, there was a noncorresponding trials’ advantage. The analysis of the temporal trend of the correspondence effects ruled out a temporal-overlap account for the observed interaction. Moreover, results of Experiment 2, in which the flanker did not belong to the target set, demonstrated that this interaction cannot be attributed to perceptual grouping of the target–flanker pairs and referential coding of the target with respect to the flanker in the congruent and incongruent conditions, respectively. Taken together, these findings are consistent with a response selection account of congruency effects: Both the position and the task-related attribute of the flanker would activate the associated responses. In noncorresponding-congruent trials and corresponding-incongruent trials, this would cause a conflict at the response selection stage.

scholarly journals Neurophysiological correlates of perception–action binding in the somatosensory system

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Julia Friedrich ◽  
Julius Verrel ◽  
Maximilian Kleimaker ◽  
Alexander Münchau ◽  
Christian Beste ◽  
...  
Keyword(s):  
Response Selection ◽  
Somatosensory System ◽  
Motor Domain ◽  
Signal Decomposition ◽  
Visual Modality ◽  
Eeg Signal ◽  
Stimulus Response ◽  
Related Information ◽  
Somatosensory Stimulus ◽  
Perception Action

Abstract Action control requires precisely and flexibly linking sensory input and motor output. This is true for both, visuo-motor and somatosensory-motor integration. However, while perception–action integration has been extensively investigated for the visual modality, data on how somatosensory and action-related information is associated are scarce. We use the Theory of Event Coding (TEC) as a framework to investigate perception–action integration in the somatosensory-motor domain. Based on studies examining the neural mechanisms underlying stimulus–response binding in the visuo-motor domain, the current study investigates binding mechanisms in the somatosensory-motor domain using EEG signal decomposition and source localization analyses. The present study clearly demonstrates binding between somatosensory stimulus and response features. Importantly, repetition benefits but no repetition costs are evident in the somatosensory modality, which differs from findings in the visual domain. EEG signal decomposition indicates that response selection mechanisms, rather than stimulus-related processes, account for the behavioral binding effects. This modulation is associated with activation differences in the left superior parietal cortex (BA 7), an important relay of sensorimotor integration.

scholarly journals Effects of Working Memory Demand on Neural Mechanisms of Motor Response Selection and Control

2013 ◽  
Vol 25 (8) ◽  
pp. 1235-1248 ◽  
Author(s):  
Anita D. Barber ◽  
Brian S. Caffo ◽  
James J. Pekar ◽  
Stewart H. Mostofsky
Keyword(s):  
Working Memory ◽  
Inhibitory Control ◽  
Response Selection ◽  
Inferior Frontal Gyrus ◽  
Stimulus Response ◽  
Control Functions ◽  
Dorsolateral Prefrontal ◽  
Memory Representations ◽  
And Control ◽  
Inferior Frontal Junction

Inhibitory control commonly recruits a number of frontal regions: pre-supplementary motor area (pre-SMA), frontal eye fields (FEFs), and right-lateralized posterior inferior frontal gyrus (IFG), dorsal anterior insula (DAI), dorsolateral prefrontal cortex (DLPFC), and inferior frontal junction (IFJ). These regions may directly implement inhibitory motor control or may be more generally involved in executive control functions. Two go/no-go tasks were used to distinguish regions specifically recruited for inhibition from those that additionally show increased activity with working memory demand. The pre-SMA and IFG were recruited for inhibition in both tasks and did not have greater activation for working memory demand on no-go trials, consistent with a role in inhibitory control. Activation in pre-SMA also responded to response selection demand and was increased with working memory on go trials specifically. The bilateral FEF and right DAI were commonly active for no-go trials. The FEF was also recruited to a greater degree with working memory demand on go trials and may bias top–down information when stimulus–response mappings change. The DAI, additionally responded to increased working memory demand on both go and no-go trials and may be involved in accessing sustained task information, alerting, or autonomic changes when cognitive demands increase. DLPFC activation was consistent with a role in working memory retrieval on both go and no-go trials. The inferior frontal junction, on the other hand, had greater activation with working memory specifically for no-go trials and may detect salient stimuli when the task requires frequent updating of working memory representations.

The representing brain: Neural correlates of motor intention and imagery

1994 ◽  
Vol 17 (2) ◽  
pp. 187-202 ◽  
Author(s):  
M. Jeannerod
Keyword(s):  
Motor Imagery ◽  
Object Oriented ◽  
Action Planning ◽  
Motor Preparation ◽  
Neural Pathways ◽  
Positive Effects ◽  
Motor Intention ◽  
Posterior Parietal ◽  
Motor Actions ◽  
Motor Representations

AbstractThis paper concerns how motor actions are neurally represented and coded. Action planning and motor preparation can be studied using a specific type of representational activity, motor imagery. A close functional equivalence between motor imagery and motor preparation is suggested by the positive effects of imagining movements on motor learning, the similarity between the neural structures involved, and the similar physiological correlates observed in both imaging and preparing. The content of motor representations can be inferred from motor images at a macroscopic level, based on global aspects of the action (the duration and amount of effort involved) and the motor rules and constraints which predict the spatial path and kinematics of movements. A more microscopic neural account calls for a representation of object-oriented action. Object attributes are processed in different neural pathways depending on the kind of task the subject is performing. During object-oriented action, a pragmatic representation is activated in which object affordances are transformed into specific motor schemas (independently of other tasks such as object recognition). Animal as well as human clinical data implicate the posterior parietal and premotor cortical areas in schema instantiation. A mechanism is proposed that is able to encode the desired goal of the action and is applicable to different levels of representational organization.

scholarly journals Effects of stimulus features and instruction on response coding, selection, and inhibition: Evidence from repetition effects under task switching

2008 ◽  
Vol 61 (10) ◽  
pp. 1573-1600 ◽  
Author(s):  
Michel D. Druey ◽  
Ronald Hübner
Keyword(s):  
Task Switching ◽  
Response Selection ◽  
Middle Finger ◽  
Task Switch ◽  
Negative Effects ◽  
Repetition Effects ◽  
Stimulus Response ◽  
Stimulus Features ◽  
Feature Overlap ◽  
Response Coding

The coding of stimuli and responses is crucial for human behaviour. Here, we focused primarily on the response codes (or response categories). As a method, we applied a combined dual-task and task-switch paradigm with a fixed task-to-hand mapping. Usually, negative effects (i.e., costs) are observed for response category repetitions under task switching. However, in several previous studies it has been proposed that such repetition effects do not occur, if the stimulus categories (e.g., “odd” if digits have to be classified according to their parity feature) are unequivocally mapped to specific responses. Our aim was to test this hypothesis. In the present experiments, we were able to distinguish between three different types of possible response codes. The results show that the participants generally code their responses according to abstract response features (left/right, or index/middle finger). Moreover, the spatial codes were preferred over the finger-type codes even if the instructions stressed the latter. This preference, though, seemed to result from a stimulus–response feature overlap, so that the spatial response categories were primed by the respective stimulus features. If there was no such overlap, the instructions determined which type of response code was involved in response selection and inhibition.

scholarly journals Stimulus response compatibility affects duration judgments, not the rate of subjective time

2018 ◽  
Vol 39 (2) ◽  
pp. 142-163
Author(s):  
Alexander Varakin ◽  
Amanda Renfro ◽  
Jason Hays
Keyword(s):  
Stimulus Duration ◽  
Subjective Time ◽  
Spatial Compatibility ◽  
Response Compatibility ◽  
Bisection Task ◽  
Temporal Interval ◽  
Stimulus Response ◽  
Temporal Bisection ◽  
Stimulus Response Compatibility ◽  
Temporal Bisection Task

AbstractThe current experiments examined whether non-temporal associations can affect duration judgments without affecting the rate of subjective time. In both experiments, participants performed a temporal bisection task, judging on each trial whether stimulus’ duration was closer to pre-learned short or long standards. In each experiment, the spatial compatibility between stimuli and responses was manipulated. In both experiments, stimulus-response compatibility (SRC) affected duration judgments: stimuli that were spatially compatible with the key used for long judgments elicited long responses at shorter objective durations than stimuli that were compatible with the key used for short judgments. The size of SRC’s effect did not depend on the magnitude of the standard durations and SRC’s effect was magnified even when SRC was introduced after the relevant temporal interval had ended. Thus, these findings are consistent with the idea that duration judgments can be affected without influencing the rate at which subjective time passes.

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