Prefrontal cortex activity during flexible categorization
By Jefferson E. Roy, Maximilian Riesenhuber, Tomaso A. Poggio, Earl K. Miller. 2010
144 citations recorded by the source corpus.
Items are categorized differently depending on the behavioral context. For instance, a lion can be categorized as an African animal or a type of cat. We recorded lateral prefrontal cortex (PFC) neural activity while monkeys switched between categorizing the same image set along two different category schemes with orthogonal boundaries. We found that each category scheme was largely represented by independent PFC neuronal populations and that activity reflecting a category distinction was weaker, but not absent, when that category was irrelevant. We suggest that the PFC represents competing category representations independently to reduce interference between them.
Subfields: Cognitive Neuroscience
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Cognitive Neuroscience
- Michael Lindner
- A. Woolgar
- Anina N. Rich
- E. Feredoes
- J. Jackson
- Timo Flesch
- Keno Juechems
- Tsvetomira Dumbalska
Citations in the corpus
- Orthogonal representations for robust context-dependent task performance in brains and neural networks (2022, positive): “For example, we can switch nimbly between sequential tasks that require distinct responses to the same input data, as when alternately judging fruit by shape or size and friends by gender or age (Roy et al., 2010; Mante et al., 2013; Saez et al., 2015; Takagi et al., 2020).”
- Dynamic Coding for Cognitive Control in Prefrontal Cortex (2013, background): “Classification learning tasks demonstrate the basic principles of adaptive coding in PFC (Cromer et al., 2011; Freedman et al., 2001; Li et al., 2007; Roy et al., 2010).”
- Concurrent neuroimaging and neurostimulation reveals a causal role for dlPFC in coding of task-relevant information (2020, background): “…has shown that these regions preferentially code task-relevant information (Rao, Rainer, & Miller, 1997; Freedman et al., 2001; Cromer et al., 2010; Roy et al., 2010; Kadohisa et al., 2013), a result mirrored in human neuroimaging data (Woolgar et al., 2015; Jackson et al., 2017; Jackson &…”