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Contribution of rat insular cortex to stimulus-guided action.
J Neurosci
January 2025
Univ. Bordeaux, CNRS, INCIA, UMR 5287, F-33000 Bordeaux, France
Anticipating rewards is fundamental for decision-making. Animals often use cues to assess reward availability and to make predictions about future outcomes. The gustatory region of the insular cortex (IC), the so-called gustatory cortex, has a well-established role in the representation of predictive cues, such that IC neurons encode both a general form of outcome expectation as well as anticipatory outcome-specific knowledge.
View Article and Find Full Text PDFThe representation of stimulus features during stable fixation and active vision.
J Neurosci
January 2025
The Department of Psychology and The Department of Cognitive and Brain Sciences, The Hebrew University of Jerusalem.
Predictive updating of an object's spatial coordinates from pre-saccade to post-saccade contributes to stable visual perception. Whether object features are predictively remapped remains contested. We set out to characterise the spatiotemporal dynamics of feature processing during stable fixation and active vision.
View Article and Find Full Text PDFMale rats choose higher doses of nicotine in anticipation of a future non-drug period.
Neurobiol Learn Mem
January 2025
School of Psychology, University of New South Wales, Australia. Electronic address:
Humans and animals use information about future access to rewards to influence their behaviour in the present, however the evidence for this is largely anecdotal. Here we use the nicotine intravenous self-administration paradigm to ask whether rats can use an auditory stimulus signalling a long (450 s) signalled time-out on the next trial to influence their nicotine intake in the present. Rats were trained to choose between low (15 µg/kg/infusion), medium (30 µg/kg/infusion) or high (60 µg/kg/infusion) doses of nicotine on any given trial.
View Article and Find Full Text PDFReward and Efficacy Modulate the Rate of Anticipatory Pupil Dilation.
Psychophysiology
January 2025
Department of Experimental Psychology, Ghent University, Ghent, Belgium.
Pupil size is a well-established marker of cognitive effort, with greater efforts leading to larger pupils. This is particularly true for pupil size during task performance, whereas findings on anticipatory effort triggered by a cue stimulus are less consistent. For example, a recent report by Frömer et al.
View Article and Find Full Text PDFVirtual reality boxing: impact of gaze-contingent blur on elite boxers performance and gaze behavior.
Front Sports Act Living
December 2024
School of Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom.
It is essential in combat sports such as boxing for athletes to perceive the relevant visual information that enables them to anticipate and respond to their opponent's attacking and defensive moves. Here, we used virtual reality (VR), which enables standardization and reproducibility while maintaining perception-action coupling, to assess the influence of a gaze-contingent blur on the visual processes that underpin these boxing behaviours. Eleven elite French boxers were placed in an immersive and adaptive first-person VR environment where they had to avoid by dodging one or two punches, and then counterattack to strike their opponent.
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