S
smcder
Guest
Neuroanatomical evidence
indicates that the circuitry underlying core affect
(see Figure 1) entrains sensory processing
by virtue of strong reciprocal projections
to the brainstem and basal forebrain systems;
these areas, in turn, have diffuse, unidirectional
afferent projections to the rest of cortex
and can influence the probability that neurons
will fire throughout the entire cortical mantle
(Mesulam 2000, Parvizi & Damasio 2001). In
this way, core affect can enhance local sensory
processing that is stimulus specific, so that a
person can effectively and efficiently assess the
relevance or value of the stimulus. Thus, areas
involved with establishing a core affective
state entrain ongoing processing throughout
the rest of the cortex, selecting for neuronal
assemblies that maximize reward or minimize
threat, thereby influencing which contents are
experienced in the moment and which are
more likely to be stored in long-term memory
(Edelman & Tononi 2000).
It should be in this article:
Lisa Barrett: Facing Down Ekman's Universal Emotions - Neuroanthropology
indicates that the circuitry underlying core affect
(see Figure 1) entrains sensory processing
by virtue of strong reciprocal projections
to the brainstem and basal forebrain systems;
these areas, in turn, have diffuse, unidirectional
afferent projections to the rest of cortex
and can influence the probability that neurons
will fire throughout the entire cortical mantle
(Mesulam 2000, Parvizi & Damasio 2001). In
this way, core affect can enhance local sensory
processing that is stimulus specific, so that a
person can effectively and efficiently assess the
relevance or value of the stimulus. Thus, areas
involved with establishing a core affective
state entrain ongoing processing throughout
the rest of the cortex, selecting for neuronal
assemblies that maximize reward or minimize
threat, thereby influencing which contents are
experienced in the moment and which are
more likely to be stored in long-term memory
(Edelman & Tononi 2000).
. . . as Barrett put it to me, emotion isn’t a simple reflex or a bodily state that’s hard-wired into our DNA, and it’s certainly not universally expressed. It’s a contingent act of perception that makes sense of the information coming in from the world around you, how your body is feeling in the moment, and everything you’ve ever been taught to understand as emotion. Culture to culture, person to person even, it’s never quite the same. What’s felt as sadness in one person might as easily be felt as weariness in another, or frustration in someone else."
That's in keeping with memory and vision too and I think helps answer your question @@Constance about the gap between sensory input and conscious processing capacity (from another thread):
"The brain, it turns out, doesn’t consciously process every single piece of information that comes its way. Think of how impossibly distracting the regular act of blinking would be if it did. Instead, it pays attention to what you need to pay attention to, then raids your memory stores to fill in the blanks."
Are the above quotations^ from the 'Mice and Men' paper?
We are indebted to you, Steve, for bringing forward the issues in the competing hypotheses regarding emotion. I'll try to get access to this paper and report on key elements in it:
It should be in this article:
Lisa Barrett: Facing Down Ekman's Universal Emotions - Neuroanthropology