PSYC59H3 Chapter 10: PSYC59 CHAPTER 10 OBJECT NOUNS
Document Summary
In the test subjects must determine whether five circularly arrayed wedges form a clockwise sequences of incrementally changing hues. Shape properties of visually perceived objects are represented in the ventral occipitotemporal cortex. Damage to mid fusiform gyrus in left hemisphere impairs understanding of concrete object nouns: these lesions affect semantic knowledge about living things more severely than semantic knowledge about nonliving things. Example: part of the meaning of scissors is the idiosyncratic cutting of this kind of tool. Mt+: located in anterior occipital and lateral occipital sulci. Implies that even though tool nouns trigger motor stimulations in parietal and frontal regions, those simulations are not always necessary to understand the words. Study: kiefer (2008: two studies; one involved fmri and the other involved electrophysiology. Lexical decision task is generally assumed to not require deliberate, effortful processing of the meanings of words: whatever semantic access does occur is automatic and implicit.
