Gunnar Blohm

Asymmetric Adaptation of Catch-up Saccades with Artificial Central Scotomas

The paper studies how catch-up saccades adapt in individuals with simulated central vision loss over five days of visual tracking.

Choice anticipation as gated accumulation of sensory predictions

The paper introduces a gated accumulator model to explain how predictions of sensory timing influence choice anticipation and evidence accumulation during free choice saccade tasks.

Main Sequence of Human Luminance-Evoked Pupil Dynamics

The paper analyzes luminance-evoked pupil dynamics in young adults, identifying nonlinear relationships and a conserved 'main sequence' between peak diameter change and velocity.

MEG signals reveal arm posture coding and intrinsic movement plans in parietofrontal cortex

This study uses MEG to identify posture coding and intrinsic movement plans in parietofrontal cortex during wrist pointing tasks, revealing distinct but overlapping networks for intrinsic and extrinsic motor codes.

Multisensory integration across reference frames with additive feed-forward networks

This paper introduces a feed-forward neural network model for multisensory integration across reference frames, showing it can approximate Bayesian inference without explicit divisive normalization.

Variability in the effects of transcranial direct current stimulation on free choice behaviour

This study investigates variability in tDCS effects on free choice behavior across individuals and sessions, finding heterogeneous effects and suggesting caution in assuming consistent tDCS outcomes.

Visual working memory models of delayed estimation do not generalize to whole-report tasks

The paper shows that models of visual working memory developed for single-report tasks fail to generalize to whole-report tasks due to assumptions about stimulus independence and encoding.

Parallel feedback processing for voluntary control: knowledge of spinal feedback in motor cortex

The paper demonstrates that increased spinal reflex responses to loads reduce motor cortex activity, using a neural network model to show how lower-level feedback influences goal-directed motor corrections.

Timing and Amplitude of Catch-up Saccades to Accelerating Targets

This study investigates how retinal acceleration error influences catch-up saccade timing and amplitude during tracking of accelerating targets.

Differential reach vector computations in mIPS and PMd as revealed through HD-tDCS

This study uses HD-tDCS to show that mIPS and PMd differentially contribute to reach planning, with PMd integrating movement vectors earlier than mIPS.

Parieto-frontal Oscillations Show Hand Specific Interactions with Top-Down Movement Plans

The paper investigates how hand-specific signals interact with top-down motor plans using MEG, showing hand-specific cortical regions and their interactions with instructed movement plans.

Confidence in predicted position error explains saccadic decisions during pursuit

The paper introduces a predictive probabilistic model explaining saccade decisions during pursuit by estimating position error confidence through Bayesian inference and Kalman filtering.

HD-tDCS over mIPS causally modulates online reach correction

This study uses HD-tDCS and mediation analysis to show that mIPS modulation affects online reach correction, providing causal evidence for its role in movement error correction.

Reaching around obstacles accounts for uncertainty in coordinate transformations

This study shows that increased uncertainty in coordinate transformations during head roll leads to compensatory changes in obstacle avoidance behavior during reaching tasks.

Mis-perception of motion in depth originates from an incomplete transformation of retinal signals

The paper investigates depth motion perception errors by testing how participants interpret retinal motion with varying gaze angles, finding systematic underestimation of version and overestimation of vergence.

Hierarchical recruitment of competition alleviates working memory overload in a fronto-parietal model

This paper develops a fronto-parietal cortical model to explain working memory overload by showing high-performing subjects avoid overload through competitive encoding and inter-areal projections.

Neuromagnetic signatures of the spatiotemporal transformation for manual pointing

The paper uses MEG to study real-time sensorimotor transformations during wrist pointing, finding a progressive shift from sensory to motor coding across brain regions.

Weighted integration of short term memory and sensory signals in the oculomotor system

The paper demonstrates that smooth pursuit eye velocity and catch-up saccade amplitude are modulated by the reliability of visual and prior information in a smooth pursuit task.

Neck muscle spindle noise biases reaches in a multi-sensory integration task

The paper shows that neck muscle spindle noise affects reach accuracy in a multi-sensory integration task, with specific biases under different head orientations and neck loads.

Disinhibition as a canonical neural mechanism for flexible behavior

The paper uses a cortical network model to show that VIP-mediated disinhibition controls flexible behavior by modulating working memory and decision-making.

Effector-dependent response deterioration by stochastic transformations reveals mixed reference frames for decisions

The paper investigates how stochastic sensorimotor reference frame transformations affect perceptual decisions by measuring reaction time and accuracy during head and stimulus rotations.

Predictive orientation remapping maintains a stable retinal percept

The paper investigates how orientation perception remains stable during saccades by showing that retinal signals are remapped to maintain a stable percept despite retinal motion.