66 research outputs found
The effects of experimenter-participant interaction qualities in a goal-oriented nonintentional precognition task
Several recent studies, inspired by psi theories such as Stanfordâs psi-mediated instrumental response (PMIR) model, have employed a tacit precognition protocol to test the notion that extrasensory perception may be nonintentional. After remarkable initial success, outcomes have been more inconsistent. One possible reason for the observed variability in results is that the studies were conducted by different experimenters. The current study therefore addressed a number of dimensions regarding participantsâ interaction with either a male or female experimenter. 52 participants took part in 12 nonintentional precognition trials and a positive or negative outcome task contingent on their performance. The total number of precognitive hits was marginally above mean chance expectation but failed to reach statistical significance. There were significant positive correlations between participantsâ precognition scores and their ratings of the positivity of their interaction with the experimenter, their rapport with the experimenter, and their level of relaxation. There were also notable differences between the two experimenters with respect to the relationships between their participant-experimenter interaction ratings and participantsâ tacit precognition scores; all correlations were in the predicted direction for the female experimenter, but in the opposite direction for the male experimenter
Anticipatory Saccades Towards the Future Consequences of Oneâs Actions â an Online Eye Tracking Study
When an action contingently yields a predictable effect, we form bi-directional action-effect associations that allow us to anticipate both the location and timing of our actionsâ effects. This is evident in anticipatory eye movements towards the future effectâs location which are performed earlier when the effectâs delay is short rather than long. Such anticipatory eye movements reflect a proactive process of effect monitoring which prepares a comparison of expected and actual effects. Here, in two online eye tracking experiments, we manipulated effect locations (spatially compatible vs. incompatible in one half) and effect delays (short vs. long) to determine whether in-laboratory effects could be reliably replicated online using participantsâ individual webcams. Extending prior research, we further compared irrelevant (Experiment 1) to relevant effects (response to effect feature; Experiment 2). In contrast to prior in-laboratory studies, participants anticipatorily looked towards future effects above chance only when effects were relevant. Post-experiment questions suggested that online-participants intentionally ignore irrelevant information to optimize task performance. Nevertheless, replicating in-laboratory experiments, both for relevant and irrelevant effects, participantsâ first saccade towards a future effect occurred earlier for the short rather than the long effect delay. Thus, we demonstrate that anticipatory eye movements reflecting a time-sensitive proactive effect monitoring process can reliably be assessed both in-laboratory as well as online. However, when investigating anticipatory saccade frequencies online, additional aspects like effect relevance have to be considered
Attentional capture by future events : Anticipatory saccades towards salient and non-salient action consequences are influenced by individual exogenous and endogenous attention
When our actions contingently yield predictable effects, we bi-directionally associate action and effect. Anticipating desired effects then allows us both to select and plan corresponding actions and to proactively shift our attention towards the location of our action's future effect. Such anticipatory saccades are thought to reflect a proactive effect monitoring process that prepares a later comparison of expected and actual effect. Here, we examined how the saliency (luminance, colour contrast, and flicker frequency) of future visual effects of participants' forced-choice left/right key presses influences anticipatory saccades towards them. Furthermore, we assessed individual differences in exogenous (pro-saccade) and endogenous (anti-saccade) attentional orienting in following phases of the experiment in which the salient and non-salient effect (target) stimuli occurred unpredictably at the prior effect locations. Surprisingly, participants were slower to manually produce future salient as compared to non-salient effects and this was modulated by individual differences in exogenous and endogenous attentional orienting. Crucially, the frequency of anticipatory saccades towards participants' actions' future visual effects was modulated by interactions of action-effect compatibility, effect saliency, and participants Ì individual exogenous/endogenous attentional orienting. These findings demonstrate that a person Ìs individual exogenous and endogenous attentional orienting can affect the proactive monitoring of their actions Ì future effects and thereby impact on goal-directed action control
Anticipatory Saccades towards the Future Consequences of Oneâs Actions : an Online Eye Tracking Study
When an action contingently yields a predictable effect, we form bi-directional action-effect associations that allow us to anticipate both the location and timing of our actionsâ effects. This is evident in anticipatory eye movements towards the future effectâs location which are performed earlier when the effectâs delay is short rather than long. Such anticipatory eye movements reflect a proactive process of effect monitoring which prepares a comparison of expected and actual effects. Here, in two online eye tracking experiments, we manipulated effect locations (spatially compatible vs. incompatible in one half) and effect delays (short vs. long) to determine whether in-laboratory effects could be reliably replicated online using participantsâ individual webcams. Extending prior research, we further compared irrelevant (Experiment 1) to relevant effects (response to effect feature; Experiment 2). In contrast to prior in-laboratory studies, participants anticipatorily looked towards future effects above chance only when effects were relevant. Post-experiment questions suggested that online-participants intentionally ignore irrelevant information to optimize task performance. Nevertheless, replicating in-laboratory experiments, both for relevant and irrelevant effects, participantsâ first saccade towards a future effect occurred earlier for the short rather than the long effect delay. Thus, we demonstrate that anticipatory eye movements reflecting a time-sensitive proactive effect monitoring process can reliably be assessed both in-laboratory as well as online. However, when investigating anticipatory saccade frequencies online, additional aspects like effect relevance have to be considered
Exp. 3 - resilience (resistance against overwriting) of executed vs. verbally coded S-A & S-C associations
- âŠ