What is mental imagery?
A form of representation similar to early visual perception but generated from memory rather than sensory input.
According to Kosslyn, how are imagery and perception related?
They rely on the same visual buffer and overlapping neural mechanisms.
What is facilitation in imagery research?
Imagining a stimulus makes later perception of the same stimulus more likely or faster.
What is interference in imagery research?
A secondary task disrupts imagery when it uses the same cognitive resources.
What did Pearson, Clifford & Tong (2008) show?
Imagined or perceived stimuli bias dominance in binocular rivalry.
What does binocular rivalry refer to?
Competition between different images presented to each eye, with only one reaching awareness.
What did Baddeley & Andrade (2000) find about imagery?
Visual-spatial tasks disrupt visual imagery, while verbal tasks disrupt auditory imagery.
What is Paivio’s dual-coding theory?
Information is stored in both verbal and visual codes, improving memory for imageable material.
What did Shepard & Metzler (1971) show?
Mental rotation time increases linearly with angular distance.
Which brain areas overlap for imagery and perception?
Early visual cortex, parietal and premotor areas.
How do children differ from adults in imagery use?
Children rely more on imagery due to less stored semantic knowledge.
What role does imagery play in emotion?
Imagery can evoke strong emotional and physiological responses.
Why is imagery important in psychopathology?
Negative intrusive imagery is common in disorders like PTSD and anxiety.
What are the two attentional systems?
Endogenous (top-down) and exogenous (stimulus-driven).
Where is the endogenous attention system located?
Dorsal fronto-parietal network.
Where is the exogenous attention system located?
Right hemisphere ventral fronto-parietal network.
What is visual neglect?
A disorder where patients ignore stimuli on one side of space.
What is the spotlight model of attention?
Attention is focused on a single spatial region.
What evidence supports multiple spotlight attention?
Performance is worse for stimuli between cued locations.
What is inhibition of return?
Reduced attention to recently attended locations.
According to Lavie, when is distraction greater?
Under low perceptual load.
What is divided attention?
Performing two tasks simultaneously.
What factors affect dual-task performance?
Task similarity, practice, and task difficulty.