Missed Questions from Quiz

What is extinction in attention disorders?

Failure to detect a contralesional stimulus only when a competing ipsilesional stimulus is present; reflects attentional competition rather than complete loss of perception.

What symptom distinguishes Bálint’s syndrome from unilateral spatial neglect?

Optic ataxia (difficulty using visual information to guide reaching), along with simultanagnosia and ocular apraxia.

What is a major limitation of early selection models of attention?

They cannot explain why unattended information (e.g., hearing your name) is still processed and can influence behavior.

What is inhibition of return (IOR)?

A phenomenon where attention is temporarily inhibited from returning to a previously attended location after ~300 ms, promoting exploration of new locations.

How does the dorsal attention network influence visual processing?

It exerts top-down control by modulating activity in the visual cortex to enhance processing of attended stimuli.

What does the double dissociation between STM and LTM demonstrate?

Short-term memory and long-term memory are supported by separate systems: H.M. had impaired LTM but intact STM, while K.F./E.E. had impaired STM but intact LTM.

What is the correct flow of information in the modal model of memory?

Sensory memory → short-term memory → long-term memory, with attention and rehearsal enabling transfer.

How does Treisman’s attenuation model explain attention?

Unattended information is not completely filtered out but weakened (attenuated), allowing important stimuli (like your name) to still be processed.

What spatial deficit is typical after right parietal lobe damage?

Impairment of attention to the left (contralesional) side of space, especially noticeable under conditions of competing stimuli.