Extracellular voltage threshold settings can be tuned for optimal
... We can understand these results in the context of the
topographical representation of speed and velocity in M1. The
scale of the topographic organization and the homogeneity of
a parameter’s representation across cortical tissue inﬂuence
the optimal threshold. This observation could generalize to
chelazzi et al 2012 - Emergent Attention Lab
... search for a given item will increase its attentional priority, rendering it gradually more perceptually salient over consecutive trials.
Consequently, when these objects with high priority are available
among other stimuli, they will automatically attract attentional resources even when their selec ...
do simultaneously presented visual and auditory
... How do the quality and quantity of recalled memory and comprehension differ when
auditory and visual stimuli convey the same or different types of information? Does auditory or
visual stimuli tend to attract more of our attention while, for example, watching TV, or attending
a meeting or class? Coul ...
Modulation of early cortical processing during divided attention to
... adjust visual stimuli for the reduction in visual cortical area devoted
to peripheral space (Adams & Horton, 2003; Frey et al., 2013).
Dark checks had a luminance of 0.1 cd/m2, and white checks had a
luminance of 118.2 cd/m2. The refresh rate of the monitor (model
VP2655; ViewSonic, Walnut, CA, USA) ...
The Emergence of Selective Attention through - laral
... Other than enhancing the neural representations of the relevant items , selective attention is regarded to cause the suppression of irrelevant information, as pointed out by a further
set of experiments in which subjects are requested to reach a target object in a 3D space, in the
presence of sim ...
Powerpoint - personal.rdg.ac.uk
... - These show the evoked potentials in each of the three conditions superimposed on
each other, on a given sensor location.
- Problem of overlapping ERPs can be seen clearly from the labels on the FCz plot.
Discussion Acknowledgments References Report Background and
... together with the results of Ochsner (2000) with pictures, suggests that
the recollective beneﬁt for negative information is present across stimulus types.
During encoding, reaction times to the rhythmic pattern changes
were slower when they occurred during the presentation of a negative as
In praise of artifice
... to attach to different aspects of natural scene statistics is to have a comprehensive formal model of the neuron under study—but this is usually
presented as the outcome rather than the foundation for the analysis.
The most popular way to try to solve this problem is to use ‘reverse
correlation’ or ...
... the information with existing material or elaborates it in some other way, again as an aid to
longer term storage.
Speed, noise, information and the graded nature of neuronal
... from t0 (15 ms post-stimulus onset) and then slows down and saturates when t is of the
order of a few hundred milliseconds. Binarized responses convey less information, but
even for long windows only by a factor of about 34 . An ideal binary unit with the same
sparseness would yield almost instantly ...
Complete Revision for Unit 1
... confusing and not similar to everyday experiences)
• - Although Wynn and Logie’s participants did not change
their stories, how accurate were they to start with? No
independent way of checking this
• + These studies are more relevant to the way we use our
memories in everyday life (we often tell peo ...
... others are lost (Broadbent, 1958)
higher processing stage
self and intrapersonal communication
... • External receptors are found on or near the surface
of the body. These receptors react to physical,
chemical, and mechanical stimuli.
• Internal receptors such as nerve endings provide
information about your internal state such as an
empty stomach or an itchy throat.
4 - University of Oklahoma
... ATTENTION is focusing on information that is
relevant to important goals and values.
1. Preconscious attention is the highly automatic, largely
unconscious selection of certain stimuli for simple
2. Focal attention is a controlled, conscious level of
attention that focuses cogni ...
... • The first step in the listening process is the reception
of a stimulus or message- both the auditory and visual
• The hearing process is based on a complex set of
physical interactions between the ear and the brain.
• Besides using the hearing mechanism, we listen
through our visual syste ...
1 - CSU, Chico
... What is Activated LTM?
Maintaining structural representations by dynamic
Cognitive information processing
... • All information is stored, problem is in
• Retrieval is based on the amount of
elaboration used in processing of
• Perception, attention, labeling, meaning
Memory Capacity of a Hebbian Learning Model with Inhibition
... It has been shown that for a general discrete Hebbian-type learning model, when all
parameters governing the stochastic learning process are fixed, the storage capacity of the
model to learn a stream of uncorrelated stimuli is as low as O(log N), where N is the number
of neurons in the network. If t ...
Attenuation theory is a model of selective attention proposed by Anne Treisman, and can be seen as a revision of Donald Broadbent's filter model. Treisman proposed attenuation theory as a means to explain how unattended stimuli sometimes came to be processed in a more rigorous manner than what Broadbent's filter model could account for. As a result, attenuation theory added layers of sophistication to Broadbent's original idea of how selective attention might operate: claiming that instead of a filter which barred unattended inputs from ever entering awareness, it was a process of attenuation. Thus, the attenuation of unattended stimuli would make it difficult, but not impossible to extract meaningful content from irrelevant inputs, so long as stimuli still possessed sufficient ""strength"" after attenuation to make it through a hierarchical analysis process.