Alireza Kazemi- Ph.D.
- Postdoctoral Researcher at University of Utah
Alireza Kazemi
- Ph.D.
- Postdoctoral Researcher at University of Utah
Postdoc researcher exploring the foundations of human memory at the INMAN Lab, University of Utah.
About
13
Publications
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Publications
Publications (13)
Eye-tracking technology yields high temporal and spatial resolution data on visual behavior. Detection and quantification of cognitive processes underlying looking behavior can be challenging using conventional processing and statistical analysis. Non-parametric statistical methods are powerful alternatives for high-resolution time series analysis...
Impaired motor vigor is a defining characteristic of Parkinson’s disease (PD), yet the underlying brain mechanisms governing motor vigor (MV) remain unclear. Recent studies have suggested beta-gamma Phase-Amplitude Coupling (PAC) derived from the resting-state electroencephalogram (EEG) is a potential biomarker for PD that is modulated by Deep Brai...
Patterns of looking behaviors may reveal memory processes. For example, looking preferences toward targets compared to distractors early in a memory retrieval trial have been associated with relational memory processes and its neural substrates. However, current methods do not fully capture visual exploration behaviors that may elucidate how relati...
The current research examined how seeking versus receiving help affected children's memory and confidence decisions. Baseline performance, when no help was available, was compared to performance when help could be sought (Experiment 1: N = 83, 41 females) or was provided (Experiment 2: N = 84, 44 females) in a sample of predominately White 5-, 7-,...
Parkinson's disease (PD) is a neurological disorder based on changes in dynamic brain activity, which can be partially ameliorated with invasive Deep Brain Stimulation. Galvanic vestibular stimulation (GVS), a non-invasive method, could potentially improve the motor symptoms of Parkinson’s disease, but the mechanisms are unclear. Biomarkers based o...
Objective
To develop a semi-unsupervised automatic sleep staging method capable of detecting novel sleep patterns beyond standard sleep stages in the EEG, as may be seen in clinical populations.
Methods
We employed a two-step approach that utilized prior knowledge extracted from labeled data to cluster unlabeled data into standard sleep stages and...
Functional divisions of labor in support of memory have been reported along the anterior–posterior axis of the hippocampus. However, little is known about how the developing hippocampus represents associative memories along this axis. The present research employed representational similarity analysis to ask whether developmental differences exist i...
Background: Impaired motor vigor (MV) is a critical aspect of Parkinson's disease (PD) pathophysiology. While MV is predominantly encoded in the basal ganglia, deriving (cortical) EEG measures of MV may provide valuable targets for modulation via galvanic vestibular stimulation (GVS).
Objective: To find EEG features predictive of MV and examine the...
We examined how subjective assessments of recollection guide decision making. Subjective recollection was dissociated from accuracy during a forced‐choice recognition task. Distracters were either similar to targets (match condition) or to other studied, but untested items (nonmatch condition). We assessed 223 participants (112 males) across three...
Sleep disturbances are common in Alzheimer’s disease and other neurodegenerative disorders, and together represent a potential therapeutic target for disease modification. A major barrier for studying sleep in patients with dementia is the requirement for overnight polysomnography (PSG) to achieve formal sleep staging. This is not only costly, but...
Toddlers exhibit behaviours that suggest judicious responses to states of uncertainty (for example, turning to adults for help), but little is known about the informational basis of these behaviours. Across two experiments, of which experiment 2 was a preregistered replication, 160 toddlers (aged 25 to 32 months) identified a target from two partia...
