[Bruce Nevin 20170320.12:03 ET]
Bill talked about emotions as sensed physical states within the body. These might include changes of tension of abdominal muscles, sensations associated with capillary expansion or contraction in the skin, erection of hair follicles, variation in heart rate …Â
The amygdala is sometimes said to be the seat of emotion, and it is also said to be essential in the formation of memory. However, it is clear that there is no memory ‘organ’ or location in the brain in which memories are stored; memory is local to each synapse as the synapses are distributed throughout the brain.
The process of establishing and strengthening  memories appears to involve associative links between different parts of the brain. For example, a memory that includes strong emotion involves signals to and from the amygdala. Associative links that include perceptions of body states that we subjectively interpret as feelings and emotions are described as the basis of Pavlovian conditioning (Mirolli et al. 2009) by establishing or strengthening reference signals. Pavlov (1927) seemed to have claimed that there was a direct association of conditioned stimulus (CS) to conditioned response (CR), but Hull (1943) suggested that the association was mediated by unconditioned stimuli (US). After long debate (Lieberman 1993), it appears that both are true (Dayan & Balleine 2002, Cardinal et al. 2002). Manella et al. (2008)–my source for the above summary–have reported some success with computational models supporting the hypothesis of Cardinal et al. (2002) that the basolateral amygdala (BLA) stores CS-US associations and the central nucleus of the amygdala (CeA) receives or stores the CS-UR associations. They did not model CS-UR associations that link to the cerebellum (Thompson et al. 2000).Â
This points to a way of reconciling studies of conditioning with PCT. Such studies cannot provide an explanation of behavior, but they can indicate some ways of influencing how an organism establishes and modifies its internally maintained reference values.
Associative links between an imagined or remembered signal and affective body states, by way of the amygdala, can result in considerable strengthening of both the imagined perception and the associated affect. This is presumably the basis of ‘wishful thinking,’ for example. Most interestingly, there is a reciprocal relationship between the amygdala and the right ventrolateral prefrontal cortex (RVLPFC), such that talking about emotions increases activity in the RVLPFC and reduces activity in the amygdala (Lieberman et al. 2007). This is the basis of certain kinds of therapeutic interventions in emotionally challenging situations, and is an inherent aspect of the Method of Levels.Â
Refs.
Cardinal, R., J. Parkinson, J. Hall, & B. Everitt. 2002. Emotion and motivation: the role of the amygdala, ventral striatum, and prefrontal cortex. Behavioral and Cognitive Neuroscience Reviews 26.3:321–52
Dayan, P., Balleine, B. 2002. Reward, motivation and reinforcement learning. Neuron 36:285–298.
Mannella, Francesco, Stefano Zappacosta, Marco Mirolli, & Gianluca Baldassarre. 2008. A computational model of the amygdala nuclei’s role in second order conditioning. In From Animals to Animats 10, pp. 321-330, Berlin: Springer.Â
Mirolli, Marco & Domenico Parisi. 2009. Language as a Cognitive Tool. Minds & Machines 19:517–528 [DOI 10.1007/s11023-009-9174-2]
Pavlov, I.P. 1927. Conditioned Reflexes: An Investigation of the Physiological Activity of the Cerebral Cortex. Oxford: Oxford University Press.
Thompson, R.F., Swain, R., Clark, R., Shinkman, P. 2000. Intracerebellar conditioning–Brogden and Gantt revisited. Behavioural Brain Research 110.1-2:3–11.
···
On Sun, Mar 19, 2017 at 6:25 PM, Sean Mulligan lack.of.inspiration@gmail.com wrote:
Is there anyone in PCT land who has looked in detail at emotions in PCT? So far I have only found an entry in B:CP and some scattered references in some articles.Â
I am attempting to use PCT as a framework for resilience research. I am looking at using emotion (or more specifically the stress response) to operationalise conflict for a experiment. Any thoughts or previous work would be greatly appreciated. Â
Cheers,Â
**Sean Mulligan **
  Mental Resilience Australia
  M# 0459278195
**  lack.of.inspiration@gmail.com **