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One wouldn't expect an expert bowler to hit only two pins: Hierarchical predictive processing of agent-caused events.

ABSTRACT: Evidence is accumulating that our brains process incoming information using top-down predictions. If lower level representations are correctly predicted by higher level representations, this enhances processing. However, if they are incorrectly predicted, additional processing is required at higher levels to "explain away" prediction errors. Here, we explored the potential nature of the models generating such predictions. More specifically, we investigated whether a predictive processing model with a hierarchical structure and causal relations between its levels is able to account for the processing of agent-caused events. In Experiment 1, participants watched animated movies of "experienced" and "novice" bowlers. The results are in line with the idea that prediction errors at a lower level of the hierarchy (i.e., the outcome of how many pins fell down) slow down reporting of information at a higher level (i.e., which agent was throwing the ball). Experiments 2 and 3 suggest that this effect is specific to situations in which the predictor is causally related to the outcome. Overall, the study supports the idea that a hierarchical predictive processing model can account for the processing of observed action outcomes and that the predictions involved are specific to cases where action outcomes can be predicted based on causal knowledge.

SUBMITTER: Heil L

PROVIDER: S-EPMC6293453 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature

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One wouldn't expect an expert bowler to hit only two pins: Hierarchical predictive processing of agent-caused events.

Heil Lieke L Kwisthout Johan J van Pelt Stan S van Rooij Iris I Bekkering Harold H

Quarterly journal of experimental psychology (2006) 20180123 12

Evidence is accumulating that our brains process incoming information using top-down predictions. If lower level representations are correctly predicted by higher level representations, this enhances processing. However, if they are incorrectly predicted, additional processing is required at higher levels to "explain away" prediction errors. Here, we explored the potential nature of the models generating such predictions. More specifically, we investigated whether a predictive processing model w ...[more]

PMID: 29359640

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Project description:BACKGROUND:Quality maternal health reduces maternal and neonatal mortality and morbidity. Healthcare professionals, including midwives, are significant agents for the promotion of quality maternal health. Frequents reports of disrespect and abuse of childbearing women by midwives during intrapartum care are becoming common, suggesting that many of these agents are engaging in care practices that compromise quality maternal health. Thus, understanding midwives' descriptions and experiences of the phenomenon is critical to addressing the threat. This paper, therefore, explored the understanding of midwives on D&AC and their occurrence in professional practice in a tertiary health facility in Kumasi, Ghana. METHODS:An exploratory descriptive qualitative research design using an interpretative approach was employed in the study. Data were generated through individual in-depth interviews. Data saturation was reached with fifteen interviews. The interviews were audio-recorded and transcribed verbatim. Open Code 4.03 was used to manage and analyse the data. RESULTS:The midwives understood D&AC. They also confirmed meting out or witnessing colleagues engage in D&AC in their professional practice. The midwives described D&AC as the provision of inadequate care and the overlooking of patient-centred care, and verbal, physical, and psychological abuse. The themes revealed that socio-economic inequalities, provider perception and victim-blaming, and health system-related factors facilitate D&AC. It emerged that the following marginalized groups were at high risk for D&AC: the non-compliant, mentally ill, HIV/AIDs+, teenagers, poor, and childbearing women on admission at the general labour ward. CONCLUSION:The midwives understood D&AC and revealed that it frequently occurred in their professional practice. Frequent in-service training on respectful maternity care and monitoring of care provision in healthcare facilities are needed to eliminate the incidence of D&AC.

Project description:Right brain-damaged patients with unilateral spatial neglect fail to explore the left side of space. Recent EEG and clinical evidence suggests that neglect patients might suffer deficits in predictive coding, i.e. in identifying and exploiting probabilistic associations among sensory stimuli in the environment. To gain direct insights on this issue, we focussed on the hierarchical components of predictive coding. We recorded EEG responses evoked by central, left-side or right-side tones that were presented at the end of sequences of four central tones. Left-side and right-side deviant tones produce a pre-attentive Mismatch Negativity that reflects a lower-order prediction error for the 'Local' deviation of the tone at the end of the sequence. Higher-order prediction errors for the frequency of these deviations in the acoustic environment, i.e. 'Global' deviation, are marked by the P3 response. We show that when neglect patients are immersed in an acoustic environment characterized by frequent left-side deviant tones, they display no pre-attentive Mismatch Negativity both for left-side deviant tones and infrequent omissions of the last tone, while they have Mismatch Negativity for infrequent right-side deviant tones. In the same condition, neglect patients show no P300 response to 'Global' prediction errors for deviant tones, including those in the non-neglected right-side, and omissions. In contrast to this, when right-side deviant tones are predominant in the acoustic environment, neglect patients have pre-attentive Mismatch Negativity both for right-side deviant tones and infrequent omissions, while they display no Mismatch Negativity for infrequent left-side deviant tones. Most importantly, in the same condition neglect patients show enhanced P300 response to infrequent left-side deviant tones, notwithstanding that these tones evoked no pre-attentive Mismatch Negativity. This latter finding indicates that 'Global' predictions are independent of 'Local' error signals provided by the Mismatch Negativity. These results qualify deficits of predictive coding in the spatial neglect syndrome and show that neglect patients base their predictive behaviour only on statistical regularities that are related to the frequent occurrence of sensory events on the right side of space.

Dataset Information

One wouldn't expect an expert bowler to hit only two pins: Hierarchical predictive processing of agent-caused events.

Publications

One wouldn't expect an expert bowler to hit only two pins: Hierarchical predictive processing of agent-caused events.

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