Affective vs. Rational Decision-Making: The Spectrum of Serotonin in Economic Behavior

Yusuf Polat

EN TR

Affective vs. Rational Decision-Making: The Spectrum of Serotonin in Economic Behavior

Abstract

Alongside dopamine, serotonin is one of the most extensively studied neurotransmitters in neurofinance, serving as an important neurotransmitter, neuromodulator, and hormone with significant effects on human behavior. Despite extensive research, serotonin is arguably the most complex neurochemical and stands out due to its pronounced influence on daily life. These characteristics primarily arise from the interaction between anxiety—one of the most fundamental affective states at the psychic level—and the amygdala, the brain’s core affective processing region. This interaction makes serotonin both highly significant and a multilayered neurochemical entity. This article examines serotonin’s behavioral roles and its effects on decision-making mechanisms within behavioral and neurofinance contexts. Additionally, it aims to comprehensively introduce serotonin’s impact on loss, risk, impulsivity, delay discounting, motivation, cognition, altruism, and prosocial behaviors. The article seeks to contribute to neurofinance literature by addressing both the neurobiological foundations of the serotonin system and its functional effects on economic decision-making through an integrative approach.

Keywords

(Duygusal ve Rasyonel Karar Verme: Ekonomik Davranışta Serotoninin Spektrumu)

Öz

Dopamin ile birlikte serotonin, nörofinans alanında en çok araştırılan nörotransmiterlerden biri olup, insan davranışları üzerinde belirgin etkiler gösteren önemli bir nörotransmiter, nöromodülatör ve hormondur. Yoğun araştırmalara rağmen, muhtemelen tüm nörokimyasallar arasında en kompleks yapıya sahip olan serotonin, günlük yaşam üzerindeki etkileriyle de öne çıkmaktadır. Serotoninin bu özellikleri, özellikle psişik düzeyde en temel duygulanımlardan biri olan anksiyete ile nöroanatomik olarak beynin temel duygulanım bölgesi olan amigdala arasındaki etkileşime dayanmaktadır. Bu etkileşim serotonini hem son derece önemli hem de çok katmanlı bir nörokimyasal yapı haline getirmektedir. Bu makalede, davranışsal ve nörofinans bağlamında serotoninin davranışsal rolleri ve karar mekanizmaları üzerindeki etkileri incelenmiştir. Ayrıca, serotonin etkisinin kayıp, risk, dürtüsellik, gecikme iskontosu, motivasyon, biliş, altruizm ve prososyal davranışlar bağlamındaki yansımalarının kapsamlı bir şekilde tanıtılması amaçlanmıştır. Makale, serotonin sisteminin hem nörobiyolojik temellerini hem de bu temellerin ekonomik karar alma süreçleri üzerindeki işlevsel etkilerini bütüncül bir yaklaşımla ele alarak nörofinans literatürüne katkı sağlamayı hedeflemektedir.

Anahtar Kelimeler

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Details

Primary Language

English

Subjects

Behavioural Finance

Journal Section

Review

Authors

Yusuf Polat ^*
0000-0002-2255-0658
Türkiye

Publication Date

December 29, 2025

Submission Date

June 5, 2025

Acceptance Date

October 30, 2025

Published in Issue

Year 2025 Volume: 3 Number: 1

IZ

https://izlik.org/JA52LM78CK

Cite

RIS / Bibtex

APA

Polat, Y. (2025). Affective vs. Rational Decision-Making: The Spectrum of Serotonin in Economic Behavior. Aksaray Üniversitesi Sosyal Bilimler Meslek Yüksekokulu Dergisi, 3(1), 15-34. https://izlik.org/JA52LM78CK