Selective attention to auditory and visual modalities converges onto noncholinergic basal forebrain neurons (in rats)
https://www.science.org/doi/10.1126/sciadv.adz7778 The basal forebrain "may serve as a subcortical hub integrating attention signals across modalities to guide adaptive behavior."
#crossmodal #neuroscienceSelective attention to auditory and visual modalities converges onto noncholinergic basal forebrain neurons (in rats)
www.science.org/doi/10.1126/... Basal forebrain "may serve as a subcortical hub integrating attention signals across modalities to guide adaptive behavior"
#crossmodal #neuroscienceSelective attention to auditor...Disentangling the functional roles of pre-stimulus oscillations in crossmodal associative memory formation via sensory entrainment
https://www.nature.com/articles/s41598-025-33761-6#Sec7 "externally induced pre-stimulus alpha entrainment boosts audiovisual associative encoding";
#crossmodal #multisensory #neuroscience
Disentangling the functional roles of pre-stimulus oscillations in crossmodal associative memory formation via sensory entrainment - Scientific Reports
The state of neural dynamics prior to the presentation of an external stimulus significantly influences its subsequent processing. This neural preparatory mechanism might be of particular importance for crossmodal memory formation. The integration of stimuli across different sensory modalities is a fundamental mechanism underlying the formation of episodic memories. However, the causal role of pre-stimulus neural activity in this process remains largely unclear. In this preregistered study, we investigate the direct relationship between transient brain states induced by sensory entrainment and crossmodal memory encoding. Participants (nβ=β105) received rhythmic visual stimuli at theta (5 Hz) or alpha (9 Hz) frequencies to evoke specific brain states. EEG recordings confirmed successful entrainment, with sustained increases in neural activity within the stimulated frequency bands persisting until stimulus onset. Notably, induced alpha oscillatory activity enhanced recognition memory performance reflected by increased sensitivity, and suggesting that alpha oscillations prepare the brain for optimal multisensory integration. These findings highlight the functional significance of distinct oscillatory brain states in facilitating memory encoding by increasing cortical excitability before stimulus presentation. Overall, our results emphasize the importance of pre-stimulus brain states in shaping the efficiency of memory formation across sensory modalities and shed light on how dynamic neural preparations support learning.
Disentangling the functional roles of pre-stimulus oscillations in crossmodal associative memory formation via sensory entrainment
www.nature.com/articles/s41... "externally induced pre-stimulus alpha entrainment boosts audiovisual associative encoding";
#crossmodal #multisensory #neuroscienceDisentangling the functional r...Disentangling the functional roles of pre-stimulus oscillations in crossmodal associative memory formation via sensory entrainment - Scientific Reports
The state of neural dynamics prior to the presentation of an external stimulus significantly influences its subsequent processing. This neural preparatory mechanism might be of particular importance for crossmodal memory formation. The integration of stimuli across different sensory modalities is a fundamental mechanism underlying the formation of episodic memories. However, the causal role of pre-stimulus neural activity in this process remains largely unclear. In this preregistered study, we investigate the direct relationship between transient brain states induced by sensory entrainment and crossmodal memory encoding. Participants (nβ=β105) received rhythmic visual stimuli at theta (5 Hz) or alpha (9 Hz) frequencies to evoke specific brain states. EEG recordings confirmed successful entrainment, with sustained increases in neural activity within the stimulated frequency bands persisting until stimulus onset. Notably, induced alpha oscillatory activity enhanced recognition memory performance reflected by increased sensitivity, and suggesting that alpha oscillations prepare the brain for optimal multisensory integration. These findings highlight the functional significance of distinct oscillatory brain states in facilitating memory encoding by increasing cortical excitability before stimulus presentation. Overall, our results emphasize the importance of pre-stimulus brain states in shaping the efficiency of memory formation across sensory modalities and shed light on how dynamic neural preparations support learning.
Saccades adapt to visual and auditory stepping targets and display an asymmetrical pattern of cross-modal transfer
https://journals.physiology.org/doi/abs/10.1152/jn.00182.2025 #crossmodalSaccades adapt to visual and auditory stepping targets and display an asymmetrical pattern of cross-modal transfer | Journal of Neurophysiology | American Physiological Society
Reactive saccades are rapid eye movements performed toward salient stimuli. Saccadic adaptation maintains the accuracy of visual reactive saccades throughout life and is thought to occur at the motor level of the saccade circuitry. Recently, we revealed that saccadic adaptation also emerges with non visual, namely tactile targets (Batikh et al. 2024). In addition, such adaptation of tactile saccades transferred partially to non-adapted visual reactive saccades of similar amplitude, compared to a complete visual-to-tactile transfer, suggesting the adaptation occurred upstream the motor level common to all saccade modalities. Here, we test whether and how saccadic adaptation and transfer occur for auditory saccades. Experiment 1 tested the visual-to-auditory transfer of both backward and forward adaptation while Experiment 2 investigated the possibility of adapting auditory saccades and the extent to which such adaptation transfers to visual saccades. Experiment 1 revealed a strong visual to-auditory transfer of both forward and backward adaptations. In Experiment 2, stepping the auditory target to another location while the saccade was in flight induced backward adaptation, but could not elicit any significant forward adaptation. Furthermore, we found a partial auditory-to-visual transfer of backward adaptation, in agreement with our previous findings regarding tactile saccades adaptation. This work brings additional insights into our understanding of saccadic adaptation, highlighting the adaptive functional levels of the different saccade modalities.
Saccades adapt to visual and auditory stepping targets and display an asymmetrical pattern of cross-modal transfer
journals.physiology.org/doi/abs/10.1... #crossmodalSaccades adapt to visual and a...Saccades adapt to visual and auditory stepping targets and display an asymmetrical pattern of cross-modal transfer | Journal of Neurophysiology | American Physiological Society
Reactive saccades are rapid eye movements performed toward salient stimuli. Saccadic adaptation maintains the accuracy of visual reactive saccades throughout life and is thought to occur at the motor level of the saccade circuitry. Recently, we revealed that saccadic adaptation also emerges with non visual, namely tactile targets (Batikh et al. 2024). In addition, such adaptation of tactile saccades transferred partially to non-adapted visual reactive saccades of similar amplitude, compared to a complete visual-to-tactile transfer, suggesting the adaptation occurred upstream the motor level common to all saccade modalities. Here, we test whether and how saccadic adaptation and transfer occur for auditory saccades. Experiment 1 tested the visual-to-auditory transfer of both backward and forward adaptation while Experiment 2 investigated the possibility of adapting auditory saccades and the extent to which such adaptation transfers to visual saccades. Experiment 1 revealed a strong visual to-auditory transfer of both forward and backward adaptations. In Experiment 2, stepping the auditory target to another location while the saccade was in flight induced backward adaptation, but could not elicit any significant forward adaptation. Furthermore, we found a partial auditory-to-visual transfer of backward adaptation, in agreement with our previous findings regarding tactile saccades adaptation. This work brings additional insights into our understanding of saccadic adaptation, highlighting the adaptive functional levels of the different saccade modalities.
Lack of cross modal plasticity potentially linked to ongoing activation of visual cortex and superior colliculus in the rd10 mouse model of retinitis pigmentosa
academic.oup.com/cercor/artic... #crossmodal #plasticity #neuroscienceValidate UserLack of cross modal plasticity potentially linked to ongoing activation of visual cortex and superior colliculus in the rd10 mouse model of retinitis pigmentosa
https://academic.oup.com/cercor/article-abstract/35/10/bhaf273/8285020 #crossmodal #plasticity #neuroscienceVisual context affects the perceived timing of tactile sensations elicited through intra-cortical microstimulation: a case study of two participants
journals.physiology.org/doi/abs/10.1... #multisensory #crossmodal #BCI #NeuroTechVisual context affects the per...Visual context affects the perceived timing of tactile sensations elicited through intra-cortical microstimulation: a case study of two participants
https://journals.physiology.org/doi/abs/10.1152/jn.00518.2024 #multisensory #crossmodal #BCI #NeuroTech
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