Illusion, namely a mismatch between the objective and perceived properties of an object
present in the environment, is a common feature of visual perception, both in normal and …

The perceived orientation of a line or grating is affected by the orientation structure of the
surrounding image: the tilt illusion. Here, I offer a selective review of the literature on the tilt …

Perception operates on an immense amount of incoming information that greatly exceeds
the brain's processing capacity. Because of this fundamental limitation, the ability to …

Patients with schizophrenia show specific abnormalities in visual perception, and patients
with bipolar disorder may have related perceptual deficits. During tasks that highlight …

Multiple disorders once jointly conceived as “nervous diseases” became segregated by the
distinct institutional traditions forged in neurology and psychiatry. As a result, each field …

Background. The salience of a visual stimulus is often reduced by nearby stimuli, an effect
known as surround suppression of perceived contrast, which may help in locating the …

Schizophrenia (SZ) is a severe psychiatric disorder characterized by perceptual, emotional,
and behavioral abnormalities, with cognitive impairment being a prominent feature of the …

Surround suppression was initially identified as a phenomenon at the neural level in which
stimuli outside the neuron's receptive field alone cannot activate responses but can …

Visual processing impairments are now well established in schizophrenia, including
abnormalities in: contrast sensitivity (Kiss et al., 2010; Kelemen et al., 2013); excitatory and …

Previous studies have reported visual impairments in patients with bipolar disorder (BPD),
but unclear were whether clinical variables would be associated with those disturbances …